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 661,941 and an area of 55,840.6 km². Wajir County has only one local authority: Wajir county council. The county has four constituencies: Wajir North, Wajir West, Wajir East and Wajir South.