Counties

Nairobi 18 2,415,310 registered voters Kakamega 14 844,551 registered voters Kiambu 14 1,275,008 registered voters Nakuru 13 1,054,856 registered voters Bungoma 11 646,598 registered voters Kisii 11 637,010 registered voters Meru 11 772,139 registered voters Homa Bay 10 551,071 registered voters Kitui 10 532,758 registered voters Machakos 10 687,565 registered voters Migori 10 469,019 registered voters Busia 9 416,756 registered voters Kilifi 9 588,602 registered voters Kisumu 9 606,754 registered voters Muranga 9 620,929 registered voters Baringo 8 281,053 registered voters Garissa 8 201,473 registered voters Kericho 8 428,067 registered voters Makueni 8 479,401 registered voters Mandera 8 217,030 registered voters Mombasa 8 641,913 registered voters Nandi 8 406,288 registered voters Narok 8 398,784 registered voters Nyeri 8 481,632 registered voters Siaya 8 533,595 registered voters Turkana 8 238,528 registered voters Uasin Gishu 8 506,138 registered voters Wajir 8 207,758 registered voters Bomet 7 376,985 registered voters Kajiado 7 463,273 registered voters Nyandarua 7 361,165 registered voters Trans Nzoia 7 398,981 registered voters Vihiga 7 310,043 registered voters Elgeyo Marakwet 6 213,884 registered voters Embu 6 334,302 registered voters Kirinyaga 6 376,001 registered voters Kwale 6 328,253 registered voters Marsabit 6 166,912 registered voters Nyamira 6 323,283 registered voters Taita Taveta 6 181,827 registered voters West Pokot 6 220,026 registered voters Laikipia 5 263,012 registered voters Samburu 5 100,014 registered voters Tana River 5 141,096 registered voters Tharaka Nithi 5 231,932 registered voters Isiolo 4 89,504 registered voters Lamu 4 81,453 registered voters