State Route 566 (SR 566) is a north–south state highway in eastern Ohio, a U.S. state. Located exclusively in northern Noble County, SR 566 has its southern terminus at SR 147, at a T-intersection 1.25 miles (2.01 km) north of the unincorporated community of Mount Ephraim. Its northern terminus is at another T-intersection, this time with SR 285 approximately 1.25 miles (2.01 km) south of the village of Senecaville.

State Route 562 is an expressway in the Cincinnati metro area of southwestern Ohio. It travels east–west between Interstate 75 and Interstate 71, crossing through the suburban enclave of Norwood. It is generally locally referred to as the Norwood Lateral Expressway.

Ohio State Route 55 (1923)

Ohio State Route 513

State Route 560 (SR 560) is a 9.97-mile-long (16.05 km) north–south state highway in the western portion of Ohio, a U.S. state. SR 560 has its southern terminus at SR 55 approximately 3.50 miles (5.63 km) southwest of the county seat of Urbana. The northern terminus of the state route is at a T-intersection with SR 29 nearly 6 miles (9.7 km) southeast of the hamlet of Rosewood. Created in the late 1930s, SR 560 is a two-lane highway that runs through primarily rural terrain to the west and northwest of Urbana.

Ohio State Route 37

State Route 49 (SR 49) is a state highway in the western part of the U.S. state of Ohio. It begins in Drexel, an area within the city of Trotwood, at US 35 and runs northwesterly to Greenville, and then runs roughly along near the western edge of the state near the Indiana state line to the Michigan state line where it meets with Michigan's M-49.

Ohio State Route 527

State Route 353 (SR 353) is an east–west state highway in southwestern Ohio, a U.S. state. Its western terminus is at U.S. Route 62 (US 62) about four and a half miles (7.2 km) south of Russellville, and its eastern terminus is near the unincorporated community of Decatur at SR 125. The entire route is a two-lane highway, passing through farmland and woodland. The route was commissioned in the mid-1930s and was paved in the mid-1950s.

State Route 521 (SR 521) is an east–west state highway in central Ohio. Existing entirely within Delaware County, the western terminus of SR 521 is at SR 37 in Delaware. Its eastern terminus is at SR 656 in the hamlet of Olive Green, located approximately five miles (8.0 km) north of Sunbury.

State Route 383 (SR 383) is a 1.50-mile-long (2.41 km) north south state highway in the central portion of the U.S. state of Ohio. The highway is a spur route whose southern terminus is at the entrance to Ohio's oldest Catholic Church, Saint Joseph's, nearly two miles (3.2 km) southeast of Somerset. County Road 60 (CR 60, Old Somerset Road) picks up where SR 383 leaves off heading southeast from the church entrance. The northern terminus of SR 383 is at a T-intersection with SR 13 just 0.50 miles (0.80 km) east of the village limits of Somerset.

In Ohio, State Route 52 may refer to:
* U.S. Route 52 in Ohio, the only Ohio highway numbered 52 since 1927
* Ohio State Route 52 (1923-1927), now SR 4 (Middletown to Dayton), SR 444 (Dayton to Fairborn), and CR 333 (Fairborn to Springfield)

Ohio State Route 53 (1923)

Ohio State Route 534

Ohio State Route 4B

State Route 534 (SR 534) is a north–south state highway in the northeastern portion of the U.S. state of Ohio. The southern terminus of SR 534 is at its junction with the duplex of U.S. Route 62 (US 62) and SR 173 nearly 4.50 miles (7.24 km) west of Salem. Its northern terminus is a curve in Geneva-on-the-Lake where the highway directly transitions into SR 531 at that route's western terminus.

State Route 37 (SR 37) is a northwest-southeast highway (signed west–east) in Ohio. It is the ninth longest state route in Ohio. Its western terminus is at U.S. Route 224 and SR 12 in Findlay, and its eastern terminus is at SR 60 and SR 78 in McConnelsville.

State Route 45 (SR 45) is a north–south state highway in the northeastern portion of the U.S. state of Ohio. Its southern terminus is at the State Route 7/State Route 39 concurrency in Wellsville, and its northern terminus is at State Route 531 about 3 miles (4.8 km) west of Ashtabula.

North Bank Road

Ohio State Route 58

Ohio State Route 51

State Route 450 (SR 450) is a short east–west state highway in southwestern Ohio, specifically near the eastern Cincinnati suburb of Milford. The western terminus of State Route 450 is at the Milford city limits, just west of a partial cloverleaf interchange with Interstate 275, with the road continuing into Milford known as Milford Parkway, which passes by the River's Edge Shopping Center and several distribution-oriented businesses prior to meeting U.S. Route 50 at the intersection marking the western terminus of State Route 131. State Route 450's eastern terminus is at U.S. Route 50, less than 1-mile (1.6 km) east of Interstate 275.

State Route 552 (SR 552) is an east-west state highway in southern Ohio. The western terminus of the route is at SR 220 about two and a half miles (4.0 km) west of Waverly. Its eastern terminus is at SR 104 nearly two miles (3.2 km) southwest of Waverly. SR 552 is located entirely within Pee Pee Township in northern Pike County. The highway follows the north shore of Lake White (part of Lake White State Park), while the corresponding state route following the south shore of the lake is SR 551.

Ohio State Route 548

State Route 554 (SR 554) is an east–west state highway located in the southeastern corner of Ohio, a U.S. state. The western terminus of State Route 554 is at State Route 325 about 1 mile (1.6 km) north of Rio Grande, and just 1 block north of the State Route 325 interchange off of U.S. Route 35. Its eastern terminus is at a signalized intersection with State Route 7 in Cheshire a mere two blocks west of the Ohio River.

State Route 44 (SR 44) is a north–south state highway in the northeastern portion of Ohio, a U.S. state. It runs from a southern terminus at State Route 43 in Waynesburg to a northern terminus at the entrance to Headlands Beach State Park near Painesville. spans from Painesville Township in the north to Waynesburg in the south. Various sections of SR 44 are named for individuals.

Ohio State Route 524 (1930s-1940s)

State Route 363 (SR 363) is a short north–south state highway located in west-central Ohio. The southern terminus of this spur route is along the shores of Lake Loramie approximately two and a half miles (4.0 km) southeast of Minster, where the roadway becomes known as Lotus Road. The northern terminus of SR 363 is at a T-intersection with SR 119 about one mile (1.6 km) east of Minster.

State Route 561 (SR 561) is a north–south state highway in the southwestern portion of the U.S. state of Ohio. Its southern terminus is at U.S. Route 50 approximately 9 miles (14 km) east of Downtown Cincinnati – this point also serves as the western termini for both SR 32 and SR 125; the route’s northern terminus is at its intersection with Vine and Seymour Streets. The route takes many different names along its length, being first known as Linwood Avenue, Observatory Avenue, and Edwards Road in Cincinnati; then it is named Smith Road and Carthage Avenue as it passes through Norwood; its final stretch in Cincinnati once again is as Seymour Avenue.

State Route 48 (SR 48) is a north–south highway in Ohio that runs from SR 132 near Goshen to SR 66 near Houston, passing through Dayton. In the early 20th century, SR 48 was assigned to completely unrelated routes within the state. From 1923 to 1927, it was the designation given to Barnesville–Hendrysburg, Barnesville–Woodsfield, and Woodsfield–Sistersville roads in eastern Ohio, now designated SR 800. Present-day SR 48 was previously signed as SR 50, and before that as Dayton–Covington and Dayton–Lebanon roads. (See 1923 Ohio state highway renumbering and 1927 Ohio state highway renumbering).

Ohio State Route 569

Ohio State Route 571

State Route 420 (SR 420) is a north–south state highway in the northwestern portion of the U.S. state of Ohio. The southern terminus of this four-lane divided highway is at a trumpet interchange with U.S. Route 20/US 23 (US 20/US 23) approximately 3.25 miles (5.23 km) northeast of the village of Luckey. The route’s northern terminus is at the southern terminus of Interstate 280 (I-280), where the two routes meet the Ohio Turnpike (I-80/I-90) at a double-trumpet interchange nearly four miles (6.4 km) southwest of Millbury. SR 420 made its debut in the late 1960s. It is a major route whose primary purpose is to link US 20/US 23 with I-280 and the Ohio Turnpike.

State Route 357 (SR 357) is a 2.353-mile-long (3.787 km) north–south state highway in the northern portion of U.S. state of Ohio. Existing entirely on South Bass Island in Lake Erie, the highway begins at its southern terminus of West Shore Boulevard, about 0.75 miles (1.21 km) west of Put-in-Bay. SR 357 then travels northeast to its northern terminus at a dead end at Lake Erie, approximately 2 miles (3.2 km) east of Put-in-Bay.

State Route 540 (SR 540) is an east–west state highway in the western portion of the U.S. state of Ohio. SR 540 has its western terminus in downtown Bellefontaine at a signalized intersection with U.S. Route 68 (US 68) and SR 47. Its eastern terminus is at a T-intersection with SR 292 approximately 3.50 miles (5.63 km) southwest of West Mansfield.

State Route 571 (SR 571) is an east–west state highway in west-central Ohio, part of a statewide road transportation system. It indirectly connects the cities of Union City and Greenville with Springfield via a final 10.7 miles (17.2 km) on U.S. Route 40.

State Route 565 (SR 565) is a 6.98-mile-long (11.23 km) east–west state highway in the southeastern portion of the U.S. state of Ohio. The western terminus of SR 565 is at a T-intersection with SR 145 nearly 8 miles (13 km) northeast of the village of Lower Salem. Its eastern terminus is also at a T-intersection, this time at SR 260 approximately 7.25 miles (11.67 km) southwest of Graysville. SR 565 was created in the late 1930s. This two-lane highway traverses primarily forested terrain as it links SR 145 with SR 260. The entirety of the route passes amidst the Wayne National Forest.

State Route 546 (SR 546) is a north–south state highway in the northern portion of the U.S. state of Ohio. The southern terminus of SR 546 is at a T-intersection with SR 13 nearly two and a half miles (4.0 km) north of Fredericktown. Its northern terminus is at a signalized intersection with the U.S. Route 42 (US 42)/SR 97 concurrency in Lexington.

Ohio State Route 522

Ohio State Route 529

State Route 532 (SR 532) is a north–south state highway in the northeastern portion of the U.S. state of Ohio. The highway runs from its southern terminus at a signalized intersection with U.S. Route 224 (US 224) on the Summit–Portage county line approximately 0.75 miles (1.21 km) south of Mogadore on the border of Springfield Township and Suffield Township to its northern terminus at a diamond interchange with Interstate 76 (I-76), at its exit 29 within the Tallmadge city limits.

Ohio State Route 43 (1923)

Ohio State Route 52 (1923–1927)

State Route 450 (SR 450) is a short east–west state highway in southwestern Ohio, specifically near the eastern Cincinnati suburb of Milford. The western terminus of State Route 450 is at the Milford city limits, just west of a partial cloverleaf interchange with Interstate 275, with the road continuing into Milford known as Milford Parkway, which passes by the River's Edge Shopping Center and several distribution-oriented businesses prior to meeting U.S. Route 50 at the intersection marking the western terminus of State Route 131. State Route 450's eastern terminus is at U.S. Route 50, less than 1-mile (1.6 km) east of Interstate 275. State Route 450's primary function is as a connector route between Interstate 275 and U.S. Route 50, as there is no direct access between the two routes at the point where U.S. Route 50 passes underneath Interstate 275.

State Route 374 (SR 374) is north–south state highway in Hocking County, Ohio, located in the southern portion of the state. Its southern terminus is over 4 miles (6.4 km) east of the unincorporated village of South Bloomingville at State Route 56, and its northern terminus is near the unincorporated village of Rockbridge at US 33, west of Logan. The road serves Hocking State Forest as well as Hocking Hills State Park, and the entire highway is part of the designated Hocking Hills Scenic Byway.

State Route 366 (SR 366) is an east–west state highway in the western portion of the U.S. state of Ohio. SR 366 has its western terminus at a T-intersection with U.S. Route 33 (US 33) nearly 1.50 miles (2.41 km) northwest of Lakeview. The route's eastern terminus is at State Route 117 about 1.50 miles (2.41 km) north of Huntsville. SR 366 runs along the western and southern edge of Indian Lake and provides access to homes and recreational facilities along the lake shoreline. SR 366 was designated in 1939, and was extended in 1961.

Ohio State Route 511

Ohio State Route 41 (1923)

State Route 541 (SR 541) is a 52.28-mile-long (84.14 km) state highway in central Ohio. The route's western terminus is US 62 in Martinsburg and its eastern terminus is at exit 54 of I-77 in Liberty Township.

State Route 535 (SR 535) is an east–west state highway in the northeastern portion of the U.S. state of Ohio. The western terminus of State Route 535 is at a signalized intersection with State Route 283 in the northwestern portion of Painesville, and just north of State Route 283's interchange with State Route 2. The route’s eastern terminus is at a signalized T-intersection with U.S. Route 20 about 1.25 miles (2.01 km) northeast of Painesville. Created in the late 1930s, the route begins on a portion of Richmond Street which becomes High Street in Fairport Harbor; the route then follows East Street toward the north. It then turns east onto Fairport Nursery Road, following that road all the way to its terminus at U.S. Route 20, which is just east of State Route 535’s interchange with State Route 2.

Ohio State Route 364

Ohio State Route 383

Ohio State Route 50 (1923-1927)

Ohio State Route 444A

State Route 574 (SR 574) is a short state highway located around the southwest side of the Senecaville Lake in eastern Ohio. 4.36 miles (7.02 km) in length, it runs from SR 566 in Seneca Township, Noble County to SR 313 in Richland Township, Guernsey County just to the east of Senecaville. The route provides access to homes, recreational facilities, and the main dam in the vicinity of the lake.

In Ohio, State Route 50 may refer to:
* U.S. Route 50 in Ohio, the only Ohio highway numbered 50 since 1927
* Ohio State Route 50 (1923-1927), now SR 48

State Route 527 (SR 527) is a north–south state highway in the southern portion of the U.S. state of Ohio. Its southern terminus is at the Ohio River in Chesapeake, where the Robert C. Byrd Bridge carries travelers across to Huntington, West Virginia. Its northern terminus is at State Route 7 at the partially completed Chesapeake bypass just northeast of the Chesapeake corporation limits. The Route is only signed at the southern end of the SR 7 concurrency; a signalized intersection. State Route 527 is one of the few state routes in Ohio that connects to the same numbered route in a neighboring state, becoming West Virginia Route 527.

State Route 519 (SR 519) is an east–west state highway situated in eastern Ohio, a U.S. state. The highway runs from its western terminus at U.S. Route 22 approximately 6 miles (9.7 km) northwest of New Athens to its eastern terminus at U.S. Route 250 about 1 mile (1.6 km) northwest of Harrisville. Found exclusively in the southeastern portion of Harrison County, State Route 519 was first designated in the late 1930s. While predominantly a winding rural two-lane highway, State Route 519 serves the community of New Athens, where it intersects State Route 9.

Ohio State Route 440

State Route 559 (SR 559) is a north–south state highway in the central portion of the U.S. state of Ohio. The southern terminus of the highway is at the signalized junction of State Route 29 and State Route 4 in downtown Mechanicsburg. Its northern terminus is at a T-intersection with State Route 287 approximately 4 miles (6.4 km) northwest of North Lewisburg.

Ohio State Route 49A

State Route 558 (SR 558) is a 15.74-mile (25.33 km) state route that runs between Salem and East Palestine in the US state of Ohio. Most of the route is a rural two-lane highway and passes through farmland, woodland and residential properties. The highway was first signed in 1937 on much the same alignment as today. SR 558 replaced the SR 154 designation of the highway which dated back to 1923; SR 194 ran between Lisbon and East Palestine. Some of the highway was paved in 1937, with the rest of the route being paved by 1961.

Ohio State Route 48 (1923-1927)

State Route 416 (SR 416) is a north–south state highway in the east-central portion of Ohio. The southern terminus of State Route 416 is at a T-intersection with U.S. Route 36 just west of Gnadenhutten. Its northern terminus is at a T-intersection with State Route 800 approximately 2 miles (3.2 km) east of Dover.

State Route 47 (SR 47) is a state highway running from the Indiana border at Union City to Waldo, about ten miles (16 km) south of Marion. In Bellefontaine, State Route 47 follows the path of different streets (even though neither are one-way) from Main Street and Sandusky Avenue to the intersection just north of Mary Rutan Hospital, about one-half mile north of the Main-Sandusky intersection. The westbound portion of State Route 47 goes down Main, while the eastbound portion goes north on Madriver Street during this stretch. Nobody really knows why the route was designated this way when none of the streets involved are one-way. It was State Route 68 until 1933, when U.S. Route 68 was commissioned. Since both roads run through a common county in Ohio (Logan), and also since there is a rule

Norwood Lateral Expressway

Ohio State Route 541

Ohio State Route 371

Ohio State Route 552

State Route 55 (SR 55) is an east–west state route in western Ohio. Its western terminus is near the town of Laura at SR 571, and its eastern terminus is south of downtown Urbana at U.S. Route 68 (US 68).

State Route 503 (SR 503) is a north–south state highway in the southwestern quadrant of the U.S. state of Ohio. The southern terminus of SR 503 is at U.S. Route 127 (US 127) in Seven Mile. Its northern terminus is at a T-intersection with SR 121 on the eastern limits of the village of Wayne Lakes.

State Route 507 (SR 507) is a short east–west state route in western Ohio, located entirely in the northern portion of Champaign County. The western terminus of SR 507 is at U.S. Route 68 (US 68) one mile (1.6 km) south of West Liberty. Its eastern terminus is at SR 245 near the Ohio Caverns approximately four miles (6.4 km) southeast of West Liberty.

State Route 362 (SR 362) is a 4.56-mile (7.34 km) north–south state highway in the western part of the U.S. state of Ohio. It serves to connect Lake Loramie State Park with SR 66. Its southern terminus is in Fort Loramie at the intersection of North Main Street (SR 66) and Elm Street. near the northern edge of Fort Loramie. SR 362 then runs about 1.1 miles (1.8 km) east, then turns north at its intersection with Fort Loramie–Swanders Road (which continues east). SR 362 then runs northerly along the western edge of Lake Loramie and Lake Loramie State Park before turning northwesterly then westerly and enters Minster and reaches its northern terminus at the intersection of South Main Street (SR 66) and First Street.

State Route 522 (SR 522) is an east–west state highway in the southern portion of the U.S. state of Ohio. State Route 522 has its western terminus is at a diamond interchange with U.S. Route 52 less than 3 miles (4.8 km) south of Wheelersburg. Its eastern terminus is at a T-intersection with State Route 93 just over 9 miles (14 km) north of Ironton.

State Route 524 (SR 524) is a state highway in eastern Ohio. The 8.10-mile-long (13.04 km) north–south route runs from the village of Bergholz at SR 164 to the unincorporated community of Mechanicstown at SR 39.

Ohio State Route 424

Ohio State Route 412

State Route 39 (SR 39) is a primarily east–west running state highway in north-central and northeastern portion of the U.S. state of Ohio. The route runs through seven counties on its approximately 155-mile (249 km) trip through the region. Its western terminus is at State Route 103 near New Washington, and its eastern terminus is at PA 68 near East Liverpool.

Ohio State Route 527 (1930s-1940s)

Ohio State Route 353

Ohio State Route 518

Ohio State Route 559

Ohio State Route 506

Ohio State Route 470

Ohio State Route 38 (1923)

State Route 542 (SR 542) is a state highway in western Carroll County, within the eastern side of Ohio. The route runs 15.8 miles (25.4 km) long and connects SR 212 near Sherrodsville to Magnolia at SR 183 by way of Dellroy and Atwood Lake.

State Route 364 (SR 364) is a north–south state route in Ohio. It starts from SR 705 near Yorkshire. The route moves north across several counties, then northeast against the side of the Grand Lake. SR 364 then travels west along a concurrency with SR 703, and ends at SR 29 near St. Marys. The route was designated in 1934, from SR 219 to SR 29. It was extended southwards to SR 705 in 1936 and completely paved by 1940. SR 364 was also extended in 1973 to the new alignment of SR 29.

Ohio State Route 416

State Route 530 (SR 530) is a nearly 8-mile (13 km) long, east-west state highway in the southeastern corner of the U.S. state of Ohio. The western terminus of State Route 530 is at a signalized T-intersection with State Route 60 in downtown Lowell. Its eastern terminus is at State Route 821 in the community of Warner, nearly 1 mile (1.6 km) west of Lower Salem. Established in the late 1930s, State Route 530 exists entirely within Washington County, passing through rural northern portions of the county while connecting the Lowell with the Lower Salem vicinity.

State Route 568 (SR 568) is an east–west state highway in the northwestern portion of the U.S. state of Ohio. The western terminus of this highway is at a signalized intersection in downtown Findlay where it meets State Route 12 and State Route 37. The eastern terminus of State Route 568 is in downtown Carey at a signalized intersection that serves as all of the northern split of the U.S. Route 23/State Route 103 concurrency, the western split of the State Route 103/State Route 199 concurrency and the southern split of the U.S. Route 23/State Route 199 concurrency.

Ohio State Route 547 Truck

Ohio State Route 373

Ohio State Route 423

Ohio State Route 52 (disambiguation)

Ohio State Route 546

State Route 529 (SR 529) is a 17.62-mile-long (28.36 km) state highway in Marion and Morrow Counties, Ohio. The route connects the city of Marion at SR 95 to SR 61 just north of the village of Fulton by way of Cardington.

Ohio State Route 366

Ohio State Route 517

Ohio State Route 36 (1923)

Ohio State Route 40 (1923-1927)

State Route 380 (SR 380) is a north–south state highway in the southwestern quadrant of the U.S. state of Ohio. The southern terminus of SR 380 is at its junction with the concurrency of U.S. Route 22 (US 22) and SR 3 nearly 3 miles (4.8 km) northeast of Clarksville. Its northern terminus is in downtown Xenia, following a brief concurrency with US 68, at the signalized intersection where the U.S. route meets US 42.

Ohio State Route 49 Alternate

Ohio State Route 42 (disambiguation)

Ohio State Route 566

Ohio State Route 49

Ohio State Route 380

Ohio State Route 387

Ohio State Route 537

State Route 517 (SR 517) is an east–west state highway located in the northeastern quadrant of the U.S. state of Ohio. The western terminus of State Route 517 is in downtown Lisbon at a signalized intersection that marks the confluence of U.S. Route 30, State Route 45, State Route 154 and State Route 164. The eastern terminus is at the junction of State Route 7 and State Route 558 approximately 2 miles (3.2 km) north of the village of Rogers.

State Route 371 (SR 371) is very short north–south state highway in the south central portion of Ohio. Its southern terminus is at a ranger station in Shawnee State Park, and its northern terminus is at SR 73 approximately six miles (9.7 km) southeast of Otway. Created in the mid-1930s, this two-lane spur highway, whose entire length is just 0.40 miles (0.64 km), provides access to Shawnee State Park from SR 73.

Ohio State Route 510

State Route 377 (SR 377) is a north–south state highway located in southeastern Ohio, a U.S. state. The southern terminus of State Route 377 is at State Route 550 approximately 4 miles (6.4 km) northeast of Amesville. Its northern terminus is at State Route 78 nearly 2 miles (3.2 km) southwest of Malta.

State Route 501 (SR 501) is a north–south state highway in Auglaize and Allen counties, Ohio. The southern terminus of SR 501 is at an interchange with U.S. Route 33 (US 33) just south of Wapakoneta, which is also the western terminus for SR 67 and the southern terminus for SR 198. The route runs concurrently with both of the latter two routes into Wapakoneta, and with SR 198 only north of the city. SR 501’s northern terminus is at SR 117 approximately six miles (9.7 km) west of Lima.

Ohio State Route 5

Ohio State Route 554

State Route 537 (SR 537) is a short east–west state highway in southeastern Ohio. At a length of just shy of five miles (8.0 km), SR 537 is located entirely within southwestern Monroe County. The state route's western terminus is at SR 260 approximately three and a half miles (5.6 km) southeast of the unincorporated community of Sycamore Valley, and its eastern terminus is at SR 26 one mile (1.6 km) south of the village limits of Graysville.

State Route 360 (SR 360) is a short east–west route in Buckeye Lake, Ohio. SR 360 starts and ends at SR 79, paralleled to the shore of Buckeye Lake. The route was designated in 1938, and has not changed significantly since.

State Route 514 (SR 514) is a state highway in Knox and Holmes Counties in central Ohio. 19.89 miles (32.01 km) long, it connects US 62 and the southern terminus of SR 205 in Danville to SR 226 in the community of Centerville just south of Shreve.

State Route 38 (SR 38) is a south-north state highway in the state of Ohio. Its southern terminus is near Bloomingburg and Washington Court House at the U.S. Route 62 / SR 3 concurrency and its northern terminus is in Marysville at the intersection of 5th Street and Main Street where the road continues north as SR 31. On its winding route through central Ohio, State Route 38 mainly offers views of rolling or flat farmland planted with corn, soybeans, and other crops. It also passes through a variety of towns including Bloomingburg, London, and Marysville.

Ohio State Route 530

State Route 511 (SR 511) is a 50.27-mile-long (80.90 km) north–south state highway in the northern portion of the U.S. state of Ohio. The southern terminus of SR 511 is at a T-intersection with SR 39 about 2 miles (3.2 km) north of Perrysville. Its northern terminus is at a trumpet interchange with the U.S. Route 20 (US 20) freeway 0.75 miles (1.21 km) east of Oberlin.

State Route 412 (SR 412) is an east–west state highway in northern Ohio. The western terminus of State Route 412 is just northeast of Fremont at a diamond interchange with the U.S. Route 20/State Route 19 duplex, which follows the Fremont Bypass at that point. The eastern terminus of the state highway is at a T-intersection with State Route 101 approximately 3 miles (4.8 km) southwest of Castalia.

Ohio State Route 44C

Ohio State Route 54

Ohio State Route 4S

Ohio State Route 501

Ohio State Route 550 (1930s-1940s)

State Route 446 (SR 446) is an east–west state highway in the northeastern portion of the U.S. state of Ohio. The western terminus of SR 446 is at a T-intersection with U.S. Route 224 (US 224) in Canfield, approximately one mile (1.6 km) west of the downtown area. Its eastern terminus is at a Y-intersection with SR 46 about one mile (1.6 km) south of Canfield. Created in the middle of the 1980s, SR 446, which runs entirely within Mahoning County, is a two-lane highway that bypasses Canfield to the southwest. It connects US 224 with SR 46, and intersects US 62 in the process.

State Route 518 (SR 518) is an east–west state highway located entirely in Columbiana County in northeast Ohio. The western terminus of SR 518 is at SR 644 north of Summitville. Its eastern terminus is at the concurrency of U.S. Route 30 (US 30) and SR 45 near West Point. Originally created in the late 1930s, SR 518 runs through rural portions of Columbiana County. It passes through scattered small unincorporated communities along the way.

Ohio State Route 368

Ohio State Route 39

State Route 51 (SR 51) is a northwest-southeast highway (signed north-south) in northwest Ohio. Its southern terminus is at U.S. Route 20 just south of Elmore, Ohio, and its northern terminus is at its interchange, along with State Route 184, at U.S. Route 23 in Sylvania, Ohio. Before an ODOT signage project in 2010, the northern (western) portion of the route, from its northern (western) terminus to the Maumee River was signed as an east-west route. The portion from the Maumee to its southern (eastern) terminus was signed north-south. ODOT has now signed all portions as north-south.

State Route 510 (SR 510) is a north–south state highway in the northern portion of Ohio. The entirety of SR 510 lies within Sandusky County. Its southern terminus is at SR 101 in Clyde, and its northern terminus is at U.S. Route 6 (US 6) between Fremont and Sandusky.

State Route 43 (SR 43) is a mainly north–south state highway that runs through the northeastern quadrant of the U.S. state of Ohio. Its southern terminus is at a signalized intersection with State Route 7 along the Ohio River in Steubenville, and its western terminus is approximately 123 miles (198 km) to the north at Public Square in Cleveland. It is one of ten routes to enter Public Square.

State Route 506 (SR 506) is an east–west state route in southern Ohio. Existing entirely in eastern Highland County, SR 506 has its western terminus at SR 124 in the hamlet of Marshall. Its eastern terminus is at SR 753 in another unincorporated community, Carmel.

Ohio State Route 375

State Route 513 (SR 513) is a north–south state highway in the eastern portion of Ohio, a U.S. state. The southern terminus of State Route 513 is at State Route 146 in Summerfield. Its northern terminus is at a T-intersection with U.S. Route 22 approximately 11 miles (18 km) northwest of Fairview.

Ohio State Route 515

State Route 505 (SR 505) is a north–south highway in the southwestern quadrant of the U.S. state of Ohio. This state highway runs from its southern terminus at a T-intersection with U.S. Route 52 (US 52) in the western half of the village of Higginsport to its northern terminus at SR 125 just 0.50 miles (0.80 km) southeast of Hamersville.

Ohio State Route 450

State Route 363 (SR 363) is a short north–south state highway located in west-central Ohio. The southern terminus of this spur route is along the shores of Lake Loramie approximately two and a half miles (4.0 km) southeast of Minster, where the roadway becomes known as Lotus Road. The northern terminus of SR 363 is at a T-intersection with SR 119 about one mile (1.6 km) east of Minster. Created in the middle of the 1930s, this short highway, which exists in both Shelby and Auglaize counties, provides access from SR 119 to a small community of cottages situated on a peninsula that juts out from the north side of Lake Loramie.

State Route 57 (SR 57) is a north–south state highway in northeast Ohio. SR 57 runs from U.S. Route 30 (US 30) in to US 6 in Lorain, a distance of 61.2 miles (98.5 km).

Ohio State Route 421

Ohio State Route 361

Ohio State Route 539

Ohio State Route 503

Ohio State Route 568

Ohio State Route 532

State Route 546 (SR 546) is a north–south state highway in the northern portion of the U.S. state of Ohio. The southern terminus of SR 546 is at a T-intersection with SR 13 nearly two and a half miles (4.0 km) north of Fredericktown. Its northern terminus is at a signalized intersection with the U.S. Route 42 (US 42)/SR 97 concurrency in Lexington. Established in the late 1930s, SR 546 is a two-lane highway that traverses through northwestern Knox County and southwestern Richland County. For most of its length, the highway passes through primarily rural terrain featuring a mix of forest and farmland.

State Route 532 (SR 532) is a north–south state highway in the northeastern portion of the U.S. state of Ohio. The highway runs from its southern terminus at a signalized intersection with U.S. Route 224 (US 224) on the Summit–Portage county line approximately 0.75 miles (1.21 km) south of Mogadore on the border of Springfield Township and Suffield Township to its northern terminus at a diamond interchange with Interstate 76 (I-76), at its exit 29 within the Tallmadge city limits. SR 532 was established in the late 1930s. Once a connector route that linked Akron to SR 8, the route is now merely a short connector linking I-76 to US 224. The portion of SR 532 that was removed from the state highway system continues from I-76 to the center of Tallmadge as Southeast Avenue. The route straddles the Summit–Portage county line from its southern terminus to where it bends into Summit County near the northern village limits of Mogadore.

Ohio State Route 56

State Route 502 (SR 502) is an east–west state highway in western Ohio, a U.S. state. The western terminus of the highway is at the Indiana state line approximately six miles (9.7 km) south of Union City, with the road continuing into the Hoosier State being locally maintained Greenville Pike. The eastern terminus of the highway is in downtown Greenville at a traffic circle where it meets a conglomeration of four other state highways: SR 49, 118, 121 and 571.

Ohio State Route 44

Ohio State Route 544

Ohio State Route 36 (disambiguation)

Ohio State Route 573

State Route 547 (SR 547) is an east–west state highway in north central Ohio, a U.S. state. The highway's western terminus is at SR 269 approximately four and a half miles (7.2 km) south of Bellevue. The eastern terminus of SR 547 is at the concurrency of U.S. Route 20 (US 20) and SR 18 in downtown Monroeville. Located in western Huron County, State Route 547 traverses primarily rural terrain excepting the easternmost stretch of the highway through Monroeville. It came into being in the late 1930s, and has not seen any significant changes since that time. SR 547's western endpoint is situated on the Seneca-Huron county line, which serves as the western boundary of the historic Firelands and Connecticut Western Reserve.

Ohio State Route 561

Ohio State Route 522 (1930s)

State Route 48 (SR 48) is a north–south highway in Ohio that runs from SR 132 near Goshen to SR 66 near Houston, passing through Dayton. In the early 20th century, SR 48 was assigned to completely unrelated routes within the state. From 1923 to 1927, it was the designation given to Barnesville–Hendrysburg, Barnesville–Woodsfield, and Woodsfield–Sistersville roads in eastern Ohio, now designated SR 800. Present-day SR 48 was previously signed as SR 50, and before that as Dayton–Covington and Dayton–Lebanon roads. (See 1923 Ohio state highway renumbering and 1927 Ohio state highway renumbering). In I Love Lucy episode #111, "First Stop", the Ricardos and the Mertzes travel this route, although they were headed to Cincinnati.

Ohio State Route 54 (1923)

Ohio State Route 420

State Route 421 (SR 421) is a two-lane east-west state highway in the north-central portion of Ohio. Existing entirely within Medina County, SR 421's endpoints are at opposite ends of the concurrency of U.S. Route 42 (US 42) and US 224, which together form the four-lane bypass of Lodi. SR 421 serves both as a de facto business route for US 42 and US 224 for Lodi, as well as a connector between the two U.S. routes and SR 83, which SR 421 intersects in downtown Lodi.

Ohio State Route 549

Ohio State Route 52

Ohio State Route 556

Ohio State Route 363

Ohio State Route 40 (disambiguation)

Ohio State Route 539 (1930s-1950s)

Ohio State Route 505

State Route 424 (SR 424) was an east–west state highway in the northwestern portion of the U.S. state of Ohio. The route was a former section of US 24 that ran parallel to the Maumee River and Miami and Erie Canal between the cities of Defiance and Napoleon. First designated in 1964, the western terminus of the route for most of its history was at an intersection with US 24 west of Defiance, though between 2008 and when the route was fully removed from the state highway system in 2012, it was at the Defiance County/Henry County line. Its eastern terminus was at a dead end near the US 6 / US 24 interchange east of Napoleon.

Ohio State Route 577

State Route 535 (SR 535) is an east–west state highway in the northeastern portion of the U.S. state of Ohio. The western terminus of State Route 535 is at a signalized intersection with State Route 283 in the northwestern portion of Painesville, and just north of State Route 283's interchange with State Route 2. The route’s eastern terminus is at a signalized T-intersection with U.S. Route 20 about 1.25 miles (2.01 km) northeast of Painesville.

Ohio State Route 521

State Route 547 (SR 547) is an east–west state highway in north central Ohio, a U.S. state. The highway's western terminus is at SR 269 approximately four and a half miles (7.2 km) south of Bellevue. The eastern terminus of SR 547 is at the concurrency of U.S. Route 20 (US 20) and SR 18 in downtown Monroeville.

Ohio State Route 519

Ohio State Route 45

State Route 58 (SR 58) is a north–south state highway in northern Ohio maintained by the Ohio Department of Transportation (ODOT). The 41.627 miles (66.992 km) that make up SR 58 serve the cities of Ashland, Wellington, Oberlin, Amherst, and Lorain in Ashland and Lorain Counties. Its southern terminus is at US 250 in Ashland, and its northern terminus is at US 6 in Lorain.

Ohio State Route 52 (1923-1927)

Ohio State Route 384

Ohio State Route 542

State Route 357 (SR 357) is a 2.353-mile-long (3.787 km) north–south state highway in the northern portion of U.S. state of Ohio. Existing entirely on South Bass Island in Lake Erie, the highway begins at its southern terminus of West Shore Boulevard, about 0.75 miles (1.21 km) west of Put-in-Bay. SR 357 then travels northeast to its northern terminus at a dead end at Lake Erie, approximately 2 miles (3.2 km) east of Put-in-Bay. SR 357 is one of two Ohio state routes on Lake Erie islands (the other being SR 575). Though this two-lane route travels predominantly east–west, it once extended to the mainland of Ohio via the Catawba Island ferry, which is why it carries a north–south routing.

Ohio State Route 558

State Route 531 (SR 531) is an east–west state highway in the U.S. state of Ohio. The western terminus of State Route 531 is at the northern terminus of State Route 534 in Geneva-on-the-Lake, at a curve along Lake Road. The route's eastern terminus is at the northern terminus of State Route 7, at a signalized intersection in Conneaut. Following mostly along the Lake Erie shoreline, it is appropriately named Lake Road for most of its length. Due to its proximity to the shoreline, sections west of Ashtabula have had to be re-routed as a result of lake erosion. The route crosses the Ashtabula River in Ashtabula via a Strauss bascule bridge, the Ashtabula lift bridge.

Ohio State Route 42 (1923)

Ohio State Route 44 (1923)

In Ohio, State Route 36 may refer to:
* U.S. Route 36 in Ohio, the only Ohio highway numbered 36 since about 1932
* Ohio State Route 36 (1923), now SR 585 (Wooster to Akron), SR 59 (Akron to Ravenna), and SR 5 (Ravenna to Pennsylvania)

Ohio State Route 551

Ohio State Route 540

Ohio State Route 40 (1923)

Ohio State Route 507

Ohio State Route 39 (1923)

State Route 555 (SR 555) is a 62.36-mile-long (100.36 km), north–south running state highway that passes through four counties in southeastern Ohio. State Route 555's southern terminus is at the concurrency of US 50, SR 7 and SR 32 (James A. Rhodes Appalachian Highway) in the unincorporated community of Little Hocking in extreme southwestern Washington County. Its northern terminus is at SR 60 in Wayne Township, just outside Zanesville. The route passes through primarily rural portions of Washington, Morgan, Perry, and Muskingum counties, connecting unincorporated villages along the way. Its emergence into southern Zanesville at the route's northern end takes the route into a more suburban setting before it terminates.

State Route 373 (SR 373) is north–south state highway in the southern portion of Ohio. Its southern terminus is just over eleven miles (18 km) north of Ironton at SR 93 at the hamlet of Bartles, and its northern terminus is at about three miles (4.8 km) to the north of its southern terminus, also at SR 93.

Ohio State Route 565

Ohio State Route 36

State Route 551 (SR 551) is an east-west state highway in southern Ohio. Its western terminus is at a T-intersection with SR 220 about four miles (6.4 km) southwest of Waverly, and its eastern terminus is at a T-intersection with SR 104 approximately two and a half miles (4.0 km) southwest of Waverly. Existing entirely within Pike County's Pee Pee Township, SR 551 follows the south shore of Lake White, while SR 552 follows the north shore. Lake White State Park is located near SR 551's western terminus.

Ohio State Route 512

State Route 4 (SR 4), formerly known as Inter-county Highway 4 until 1921 and State Highway 4 in 1922, is a major north–south state highway in Ohio. It is the fifth longest state route in Ohio. Its southern terminus is at U.S. Route 42 in Cincinnati, Ohio, and its northern terminus is at U.S. Route 6 in Sandusky, Ohio. Its path is nearly ruler-straight for many miles. Some portions of the route are still marked as Dixie Highway. The northern portion was constructed by the Columbus and Sandusky Turnpike Company, see Turnpike Lands.

Ohio State Route 570

State Route 423 (SR 423) is a 17.07-mile (27.47 km) long north–south state highway in the central portion of the U.S. state of Ohio. The southern terminus of SR 423 is in Waldo at a T-intersection that also serves as the eastern terminus of SR 47, as well as the southern terminus of SR 98. The signed northern terminusof SR 423 is at its junction with SR 231 nearly 3 miles (4.8 km) east of Morral. However, SR 423 is defined to continue northeast from this point along SR 231 for about 0.25 miles (0.40 km) before coming to an end at the U.S. Route 23 (US 23) expressway. In Marion, SR 423 and SR 4 form a concurrency and split into two one-way pairs. Northbound SR 4/423 travels on State Street while southbound SR 4/423 (officially designated SR 4-D and SR 423-D) travel on Prospect Street.

Ohio State Route 535

Ohio State Route 3 (1923)

Ohio State Route 382

State Route 531 (SR 531) is an east–west state highway in the U.S. state of Ohio. The western terminus of State Route 531 is at the northern terminus of State Route 534 in Geneva-on-the-Lake, at a curve along Lake Road. The route's eastern terminus is at the northern terminus of State Route 7, at a signalized intersection in Conneaut.

Ohio State Route 424C

Ohio State Route 47

State Route 372 (SR 372) is a very short, two-lane east–west state highway in the southern part of the U.S. state of Ohio. The western terminus of this spur route is at a T-intersection with the concurrency of U.S. Route 23 (US 23) and SR 104 about six and a half miles (10.5 km) north of Waverly. Its eastern terminus is just 0.68 miles (1.09 km) to the east of that point at the boundary of Scioto Trail State Forest. Continuing east of that point is Stoney Creek Road, which traverses through the state forest in the direction of the Scioto River. From its inception in the middle of the 1930s, the primary function of SR 372 has been to provide access to the state forest from the state highway system.

Ohio State Route 547

Ohio State Route 377

State Route 5 (SR 5) is an east–west state highway in the northeastern portion of the U.S. state of Ohio. Its western terminus is at Interstate 76 at its interchange with State Route 44 about 3.5 miles (5.6 km) south of Ravenna, and its eastern terminus is at the Pennsylvania state line northeast of Kinsman; this point is also the western terminus of Pennsylvania Route 58 which begins to the east.

Ohio State Route 359

Ohio State Route 560

Ohio State Route 48

State Route 502 (SR 502) is an east–west state highway in western Ohio, a U.S. state. The western terminus of the highway is at the Indiana state line approximately six miles (9.7 km) south of Union City, with the road continuing into the Hoosier State being locally maintained Greenville Pike. The eastern terminus of the highway is in downtown Greenville at a traffic circle where it meets a conglomeration of four other state highways: SR 49, 118, 121 and 571. SR 502 was established in the late 1930s. It primarily connects rural areas of west-central Darke County with the county seat of Greenville.
Ohio State Route 502

State Route 516 (SR 516) is a two-lane east-west state highway that runs entirely within Tuscarawas County in eastern Ohio. The western terminus of State Route 516 is at State Route 93 in Dundee. Its eastern terminus is at a signalized intersection with State Route 39 in Dover, just one block west of the Interstate 77/U.S. Route 250 freeway. Created in the late 1930s, State Route 516 serves primarily rural portions of northwestern Tuscarawas County including Winfield, Ohio.

Ohio State Route 4 Bypass

State Route 361 (SR 361, OH 361) is a 4.67-mile-long (7.52 km) long state highway entirely located within Pickaway Township, Pickaway County, Ohio. The route connects US 23 with SR 159 just north of Kingston.

Ohio State Route 509

Ohio State Route 538

State Route 368 (SR 368) is a short north–south state highway in western Ohio, a U.S. state. SR 368 travels from its southern terminus at SR 366 approximately 1.75 miles (2.82 km) east of Russells Point to its northern terminus on Seminole Island in the eastern half of Indian Lake, at an intersection where it meets Logan County Road 272 (CR 272) and CR 286. Having made its debut in the late 1930s, SR 368 is a two-lane spur route that serves both Indian Lake State Park and communities of cottages that are on two eastern Indian Lake islands: Shawnee and Seminole.

Ohio State Route 574

State Route 379 (SR 379, OH 379) is a north–south state highway located in the southeastern quadrant of the U.S. state of Ohio. The highway runs from its southern terminus at a T-intersection with State Route 78 nearly 3.25 miles (5.23 km) northeast of Summerfield to its northern terminus at a Y-intersection with State Route 147 about 3.75 miles (6.04 km) northeast of Batesville on the Noble-Belmont County Line.

Ohio State Route 55

State Route 56 (SR 56) is a west–east state highway in central Ohio. Its western terminus is at SR 29 near Mutual, and its eastern terminus is at SR 682 in Athens.

Ohio State Route 531

Ohio State Route 524

State Route 54 (SR 54) is a north–south state highway that serves west-central Ohio. It extends from Urbana in the north, to southeast of Springfield.

Ohio State Route 360

Ohio State Route 367

Ohio State Route 446

State Route 423 (SR 423) is a 17.07-mile (27.47 km) long north–south state highway in the central portion of the U.S. state of Ohio. The southern terminus of SR 423 is in Waldo at a T-intersection that also serves as the eastern terminus of SR 47, as well as the southern terminus of SR 98. The signed northern terminusof SR 423 is at its junction with SR 231 nearly 3 miles (4.8 km) east of Morral. However, SR 423 is defined to continue northeast from this point along SR 231 for about 0.25 miles (0.40 km) before coming to an end at the U.S. Route 23 (US 23) expressway.

State Route 43 (SR 43) is a mainly north–south state highway that runs through the northeastern quadrant of the U.S. state of Ohio. Its southern terminus is at a signalized intersection with State Route 7 along the Ohio River in Steubenville, and its western terminus is approximately 123 miles (198 km) to the north at Public Square in Cleveland. It is one of ten routes to enter Public Square. Created in the mid-1920s, State Route 43 starts out in Steubenville, and runs northwesterly to Canton via Carrollton. From Canton, the highway runs northerly through Kent and Streetsboro to Aurora, where it then turns northwesterly, and passes through suburban Cleveland before entering the city proper, and coming to an end in downtown at Public Square. For its northernmost stretch of less than 1 mile (1.6 km), State Route 43 shares the same portion of pavement as four other highways at the same time: U.S. Route 422, State Route 8, State Route 14 and State Route 87. The five routes share a common endpoint in the middle of Public Square, where they intersect the triplex of U.S. Route 6, U.S. Route 42 and State Route 3.

Ohio State Route 430

State Route 539 (SR 539) is a north–south state highway in the northeastern quadrant of the U.S. state of Ohio. State Route 539 has its southern terminus at State Route 302 in Chester Township approximately 3 miles (4.8 km) northwest of the city limits of Wooster. Its northern terminus is at its junction with State Route 301 in West Salem, just one block south of that route's junction with U.S. Route 42.

Ohio State Route 48T

Ohio State Route 45 (1923)

Ohio State Route 516

Ohio State Route 475

State Route 556 (SR 556) is an east–west state highway located in the southeastern portion of the U.S. state of Ohio. State Route 556 runs from its western terminus at State Route 145 in Beallsville to its eastern terminus at a T-intersection with State Route 7 in Clarington, just a short distance from the western banks of the Ohio River.

Ohio State Route 372

Ohio State Route 422

Ohio State Route 50

Ohio State Route 504

Ohio State Route 57

Ohio State Route 490

Ohio State Route 357

Ohio State Route 562

State Route 501 (SR 501) is a north–south state highway in Auglaize and Allen counties, Ohio. The southern terminus of SR 501 is at an interchange with U.S. Route 33 (US 33) just south of Wapakoneta, which is also the western terminus for SR 67 and the southern terminus for SR 198. The route runs concurrently with both of the latter two routes into Wapakoneta, and with SR 198 only north of the city. SR 501’s northern terminus is at SR 117 approximately six miles (9.7 km) west of Lima. SR 501 was commissioned in 1937, along most of the same route as today. The highway was paved by 1939. In 1961, the southern terminus of the route was moved to its current terminus.

State Route 430 (SR 430, OH 430) is an east–west state highway in the northern portion of Ohio. The western terminus of State Route 430 is at an interchange with State Route 309 in Ontario. Its eastern terminus is at a T-intersection with State Route 603 just outside Mifflin.

Ohio State Route 386

Ohio State Route 379

Ohio State Route 526

State Route 373 (SR 373) is north–south state highway in the southern portion of Ohio. Its southern terminus is just over eleven miles (18 km) north of Ironton at SR 93 at the hamlet of Bartles, and its northern terminus is at about three miles (4.8 km) to the north of its southern terminus, also at SR 93. The highway was designated in the mid-1930s at about the same time a number of similarly-numbered highways, SR 370, SR 371 and SR 372, were created. All of these routes share a common bond in that they were established specifically to serve state parks and state forests. However, unlike the other three routes, which are all spurs, SR 373 is a loop route that intersects SR 93 at both endpoints, while providing access to Dean State Forest. Through the entirety of its route, SR 373 also passes through Wayne National Forest.

Ohio State Route 46 (1923)

Ohio State Route 555

Ohio State Route 543

State Route 515 (SR 515) is a north-south state highway located in east-central Ohio. Existing entirely within the northeastern portion of Holmes County in Ohio's Amish Country, SR 515 has its southern terminus at a signalized intersection with SR 39 in the unincorporated community of Walnut Creek. Its northern terminus is at a T-intersection with U.S. Route 62 (US 62) one mile (1.6 km) southwest of the hamlet of Winesburg. The entirety of SR 515 is a part of the Amish Country Byway, an officially designated National Scenic Byway.

Ohio State Route 43

Ohio State Route 572

State Route 517 (SR 517) is an east–west state highway located in the northeastern quadrant of the U.S. state of Ohio. The western terminus of State Route 517 is in downtown Lisbon at a signalized intersection that marks the confluence of U.S. Route 30, State Route 45, State Route 154 and State Route 164. The eastern terminus is at the junction of State Route 7 and State Route 558 approximately 2 miles (3.2 km) north of the village of Rogers. Established in the late 1930s, State Route 517 runs exclusively within Columbiana County, traversing through mainly rural terrain in the central and northeastern portions of the county.

Ohio State Route 48 (1923)

Ohio State Route 50 (1923)

Ohio State Route 49 (1923)

Ohio State Route 514

Ohio State Route 362

State Route 47 (SR 47) is a state highway running from the Indiana border at Union City to Waldo, about ten miles (16 km) south of Marion. In Bellefontaine, State Route 47 follows the path of different streets (even though neither are one-way) from Main Street and Sandusky Avenue to the intersection just north of Mary Rutan Hospital, about one-half mile north of the Main-Sandusky intersection. The westbound portion of State Route 47 goes down Main, while the eastbound portion goes north on Madriver Street during this stretch. Nobody really knows why the route was designated this way when none of the streets involved are one-way. It was State Route 68 until 1933, when U.S. Route 68 was commissioned. Since both roads run through a common county in Ohio (Logan), and also since there is a rule that there can be no Ohio State Routes with the same number as US highways within Ohio, the number was changed to 47.

State Route 568 (SR 568) is an east–west state highway in the northwestern portion of the U.S. state of Ohio. The western terminus of this highway is at a signalized intersection in downtown Findlay where it meets State Route 12 and State Route 37. The eastern terminus of State Route 568 is in downtown Carey at a signalized intersection that serves as all of the northern split of the U.S. Route 23/State Route 103 concurrency, the western split of the State Route 103/State Route 199 concurrency and the southern split of the U.S. Route 23/State Route 199 concurrency. State Route 568 was created in the middle of the 1960s. The entire length of this two-lane highway is part of the former alignment of State Route 15, which was realigned onto a new expressway from Findlay to Carey at that time.

Ohio State Route 38

Ohio State Route 47 (1923)

Ohio State Route 374

Ohio State Route 4

Ohio State Route 51 (1923)

Lake Road