Mumias is a town in Kakamega County of Kenya. The town has an urban population of 116,358 and is the second largest town in Kakamega County. Mumias was the centre of the Mumias District. The town is linked by road to Kakamega, Busia (west), Bungoma (north), Butere, Luanda, Maseno and Kisumu (south). Two major rivers, River Nzoia and River Lusumu pass close to the town.