Mumias is not county, but one of the constituencies in the county of Kakamega.
The Constituencies in Kakamega County in Kenya include,Lugari, Likuyani, Malava, Lurambi, Makholo, Mumias, Mumias East, Matungu, Butere, Khwisero, Shinyalu and Ikolomani.
Kakamega town is the county headquarters of Kakamega county.
There are eight constituencies in the county of Migori.
There are approximately six constituencies in Nyeri county.
There are nine constituencies in the county of Kisii.
There are eight constituencies in the county of Homabay.
There are five constituencies in the county of Bomet.
The county of Kericho has six constituencies.
There are 5 constituencies in the county of Kajiado.
There are three constituencies in the county of Laikipia.
There are seven constituencies in the county of Murang'a.