| County | Candidate | Party/Coalition | Votes garnered | Proportion of votes |
| Meru | Uhuru Kenyatta | Jubilee Party | 482,580 | 88.82% |
| Raila Odinga | NASA | 55,602 | 10.23% | |
| Machakos | Uhuru Kenyatta | Jubilee Party | 82,629 | 17.59% |
| Raila Odinga | NASA | 380,018 | 80.91% | |
| Murang’a | Uhuru Kenyatta | Jubilee Party | 498,248 | 97.89% |
| Raila Odinga | NASA | 9122 | 1.79% | |
| Kiambu | Uhuru Kenyatta | Jubilee Party | 912,588 | 92.63% |
| Raila Odinga | NASA | 69,190 | 7.02% | |
| Nakuru | Uhuru Kenyatta | Jubilee Party | 639,297 | 84.74% |
| Raila Odinga | NASA | 110,857 | 14.69% | |
| Kakamega | Uhuru Kenyatta | Jubilee Party | 63,399 | 11.46% |
| Raila Odinga | NASA | 483,157 | 87.31% | |
| Bungoma | Uhuru Kenyatta | Jubilee Party | 126,475 | 30.21% |
| Raila Odinga | NASA | 284,786 | 68.03% | |
| Kisumu | Uhuru Kenyatta | Jubilee Party | 7411 | 1.96% |
| Raila Odinga | NASA | 369,963 | 97.64% | |
| Homa Bay | Uhuru Kenyatta | Jubilee Party | 1960 | 0.49% |
| Raila Odinga | NASA | 400,351 | 99.34% | |
| Kisii | Uhuru Kenyatta | Jubilee Party | 174,213 | 43.16% |
| Raila Odinga | NASA | 223,155 | 55.28% | |
| Nairobi | Uhuru Kenyatta | Jubilee Party | 791,291 | 48.55% |
| Raila Odinga | NASA | 828,826 | 50.85% |