| Registered Voters | RAILA FINAL TALLY | UHURU FINAL TALLY | |
| Baringo County | 232,258 | 33,875 | 160,782 |
| Bomet County | 322,012 | 35,461 | 225,900 |
| Bungoma County | 559,850 | 350,617 | 94,567 |
| Busia County | 351,048 | 263,817 | 28,890 |
| Elgeyo Marakwet County | 180,664 | 19,567 | 138,161 |
| Embu County | 309,468 | 30,397 | 225,592 |
| Garissa County | 163,350 | 50,848 | 77,626 |
| Homa Bay County | 476,875 | 448,333 | 2,874 |
| Isiolo County | 75,338 | 28,933 | 25,573 |
| Kajiado County | 411,193 | 157,104 | 179,772 |
| Kakamega County | 743,736 | 536,695 | 55,092 |
| Kericho County | 375,668 | 29,804 | 289,126 |
| Kiambu County | 1,180,920 | 94,693 | 912,020 |
| Kilifi County | 508,068 | 300,746 | 47,439 |
| Kirinyaga County | 349,836 | 38000 | 278,401 |
| Kisii County | 546,580 | 333,444 | 127,936 |
| Kisumu County | 539,210 | 459,944 | 11,456 |
| Kitui County | 474,512 | 341,370 | 57,838 |
| Kwale County | 281,041 | 168,890 | 36,035 |
| Laikipia County | 246,487 | 26,918 | 179,496 |
| Lamu County | 69,776 | 33,709 | 21,553 |
| Machakos County | 620,254 | 421,211 | 78,518 |
| Makueni County | 423,310 | 325,343 | 27,607 |
| Mandera County | 175,642 | 36,012 | 102,037 |
| Meru County | 702,480 | 97,719 | 484,443 |
| Migori County | 388,633 | 307,666 | 44,624 |
| Marsabit County | 141,708 | 28,094 | 94,702 |
| Mombasa County | 580,223 | 279,132 | 90,935 |
| Muranga County | 587,126 | 74,358 | 484,834 |
| Nairobi County | 2,250,853 | 906,350 | 779,573 |
| Nakuru County | 949,618 | 139,495 | 641,718 |
| Nandi County | 346,007 | 41,481 | 242,900 |
| Narok County | 341,730 | 181,562 | 147,260 |
| Nyamira County | 278,853 | 144,268 | 95,065 |
| Nyandarua County | 335,634 | 17,911 | 298,216 |
| Nyeri County | 456,949 | 37,994 | 412,066 |
| Samburu County | 82,787 | 41,627 | 32,804 |
| Siaya County | 457,953 | 478,193 | 3,809 |
| Taita Taveta County | 155,716 | 101,015 | 28,815 |
| Tana River County | 118,327 | 75,347 | 29,405 |
| Tharaka Nithi County | 213,154 | 16,330 | 164,045 |
| Trans Nzoia County | 339,622 | 166,697 | 103,653 |
| Turkana County | 191,435 | 119,577 | 37,444 |
| Uasin Gishu County | 450,055 | 80,128 | 275,429 |
| Vihiga County | 272,409 | 197,632 | 15,209 |
| Wajir County | 162,902 | 55,257 | 86,032 |
| West Pokot County | 180,232 | 58,168 | 108,872 |
| 8,452,134 | 7,846,528 |
