Nakuru is the fourth-largest city in Kenya after Nairobi, Mombasa and Kisumu. It is the capital of Nakuru County and former capital of the Rift Valley Province. It had 307,990 inhabitants within its town limits by 2009, making it the largest urban centre in the Kenyan mid-west with Eldoret in Uasin Gishu following closely behind. Nakuru lies about 1,850 m above sea level.