Wajir County is a county in the former North Eastern Province of Kenya. Its capital and largest town is Wajir. The county has a population of 1201,007 and an area of 55,840.6 km². The county is bordered to the north by Ethiopia, to the northeast by Mandera County, to the east by Somalia, to the south by Garissa County, to the west by Isiolo County and to the northwest by Marsabit County. The county has six constituencies: Eldas,elnur , Tarbaj, Wajir North, Wajir West, Wajir East, and Wajir South.

Moniaive railway station is the closed station terminus of the Cairn Valley Light Railway (CVR) branch, from Dumfries. It served the rural area of Moniaive in Dumfries and Galloway, Scotland.