Primary School Enrolment (number)
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 |
| Kakamega | 115,576 | 406,475 | 73,203 | 187,489 | 523,630 | 535,292 | 546,293 |
| Bungoma | 58,398 | 227,385 | 232,129 | 316,759 | 488,153 | 499,025 | 509,281 |
| Nairobi | 61,238 | 146,565 | 177,608 | 238 | 440,586 | 450,399 | 459,655 |
| Nakuru | 30,396 | 188,243 | 215,558 | 278,428 | 409,630 | 418,753 | 427,360 |
| Kitui | 42,615 | 186,103 | 132,994 | 176,168 | 325,229 | 332,473 | 339,306 |
| Meru | 82,942 | 273,944 | 104,142 | 106,284 | 311,283 | 318,216 | 324,756 |
| Kiambu | 99,728 | 213,840 | 136,509 | 151,381 | 307,134 | 313,975 | 320,427 |
| Homa Bay | | | 75,405 | 98,309 | 303,116 | 309,867 | 316,235 |
| Kisii | 84,867 | 216,922 | 120,891 | 130,243 | 301,788 | 308,509 | 314,850 |
| Kilifi | 20,895 | 124,147 | 92,028 | 149,575 | 291,379 | 297,868 | 303,990 |
| Migori | | 281,543 | 116,028 | 163,693 | 289,427 | 295,873 | 301,954 |
| Machakos | | 423,795 | 239,851 | 279,638 | 272,538 | 278,608 | 284,334 |
| Makueni | | | 211,789 | 261 | 265,868 | 271,790 | 277,376 |
| Kisumu | 36,028 | 142,617 | 59,891 | 64,507 | 247,901 | 253,422 | 258,631 |
| Siaya | 48,213 | 188,588 | 123,996 | 152,438 | 241,689 | 247,072 | 252,150 |
| Busia | 27,813 | 110,304 | 85,439 | 124,598 | 239,684 | 245,023 | 250,058 |
| Narok | 5,965 | 71,256 | 57,880 | 93,098 | 235,178 | 240,415 | 245,356 |
| Trans Nzoia | 11,956 | 86,967 | 32,126 | 158,212 | 227,012 | 232,067 | 236,837 |
| Nandi | 23,272 | 127,136 | | | 221,383 | 226,314 | 230,965 |
| Bomet | | | 101,789 | 128,733 | 221,176 | 226,102 | 230,748 |
| Kericho | 53,344 | 264,603 | 120,756 | 148,952 | 220,794 | 225,712 | 230,350 |
| Muranga | 34,713 | 99,634 | 108,976 | 90,331 | 195,692 | 200,050 | 204,162 |
| Turkana | 1,409 | 32,735 | 34,154 | 49,713 | 193,228 | 197,532 | 201,592 |
| Uasin Gishu | 18,078 | 94,512 | 103,171 | 132,387 | 185,471 | 189,602 | 193,499 |
| Kwale | 13,854 | 76,244 | 83,902 | 133,475 | 167,460 | 171,189 | 174,708 |
| Vihiga | | | 143,650 | 168,072 | 164,445 | 168,107 | 171,562 |
| West Pokot | 3,036 | 41,658 | 46,267 | 83,723 | 151,288 | 154,657 | 157,836 |
| Kajiado | 7,627 | 43,628 | 55,129 | 79,892 | 148,566 | 151,875 | 154,996 |
| Nyandarua | 85,847 | 178,725 | 124,398 | 143,371 | 146,087 | 149,341 | 152,410 |
| Nyamira | 60,351 | 118 | 135,639 | 143,489 | 144,044 | 147,252 | 150,278 |
| Baringo | 12,244 | 83,000 | 61,191 | 79,349 | 138,490 | 141,574 | 144,484 |
| Nyeri | 3,048 | 11,651 | 154,727 | 157,086 | 138,014 | 141,088 | 143,988 |
| Mombasa | 26,164 | 61,754 | 61,682 | 91,993 | 132,306 | 135,253 | 138,033 |
| Garissa | 1,628 | 13,006 | 13,617 | 20,678 | 117,022 | 119,628 | 122,086 |
| Embu | 29,295 | 107,753 | 62,986 | 66,693 | 115,835 | 118,415 | 120,849 |
| Elgeyo Marakwet | | | | | 113,371 | 115,896 | 118,278 |
| Kirinyaga | 31,429 | 106,572 | 106,963 | 101,034 | 109,359 | 111,795 | 114,093 |
| Tharaka Nithi | | | | | 94,041 | 96,135 | 98,111 |
| Laikipia | 7,981 | 60,081 | 66,994 | 88,150 | 93,074 | 95,146 | 97,102 |
| Mandera | 874 | 11,975 | 15,945 | 29,154 | 86,063 | 87,980 | 89,788 |
| Taita Taveta | 18,218 | 60,119 | 61,438 | 69,105 | 65,267 | 66,721 | 68,092 |
| Wajir | 930 | 9,830 | 17,572 | 2,106 | 62,252 | 63,639 | 64,946 |
| Marsabit | 130,337 | 14,993 | 12,033 | 18,440 | 55,465 | 56,700 | 57,866 |
| Tana River | 3,890 | 23,045 | 20,677 | 35,682 | 46,683 | 47,723 | 48,704 |
| Samburu | 2,079 | 13,296 | 15,992 | 30,701 | 45,125 | 46,130 | 47,078 |
| Isiolo | 2,530 | 11,918 | 14,553 | 20,196 | 33,802 | 34,555 | 35,265 |
| Lamu | 962 | 13,589 | 15,658 | 20,068 | 25,769 | 26,342 | 26,884 |