Bomet County
Joyce Cherono Laboso - 175932 votes (67.2%)
Isaac Kiprono Rutto - 85863 votes (32.8%)
Kirinyaga County
Anne Mumbi Waiguru - 159606 votes (54.09%)
Martha Wangari Karua - 120341 votes (40.78%)
Bedan Muriithi Kagai - 9621 votes (3.26%)
Joseph Kathuri Ndathi - 4628 votes (1.57%)
Kennedy Karani Macharia - 875 votes (0.3%)
Machakos County
Alfred Nganga Mutua - 244241 votes (53.15%)
Wavinya Ndeti - 204928 votes (44.6%)
Muia Jeremiah Lemi - 6432 votes (1.4%)
Bernard Muia Tom Kiala - 3898 votes (0.85%)
Nairobi County
Mike Sonko Mbuvi Kioko - 836919 votes (53.5%)
Kidero Odhiambo Evans - 670398 votes (42.86%)
Peter Kenneth - 41693 votes (2.67%)
Miguna Miguna - 9920 votes (0.63%)
Michael Mutinda Mumo- 1500 votes (0.1%)
Mwanga Inganji Francis - 1404 votes (0.09%)
Lawrence Kamau Macharia - 1339 votes (0.09%)
Godfrey Wanyoike Waweru - 1156 votes (0.07%)
Kiambu County
Ferdinand Ndungu Waititu Babayao - 758199 votes (78.16%)
William Kabogo Gitau - 203911 votes (21.02%)
James Nganga Njuguna - 4210 votes (0.43%)
Gakuru Kanyanja - 3777 votes (0.39%)
Meru County
Kiraitu Murungi - 278383 votes (51.93%)
Peter Gatirau Munya - 230618 votes (43.02%)
Kilemi Mwiria - 17327 votes (3.23%)
Kiambi James Thambura Atheru - 4078 votes (0.76%)
Bonface Kinoti Gatobu - 3545 votes (0.66%)
Winfred Kaburu - 2087 votes (0.39%)
Uasin Gishu
Jackson Kiplagat Mandago - 190056 votes (57.16%)
Zedekiah Buzeki Kiprop Bundotich - 142436 votes (42.84%)