| Province | Number of districts | Population | Population/district |
|---|---|---|---|
| Coast | 26 | 4,328,474 | 166,480 |
| North-Eastern | 17 | 2,490,073 | 146,475 |
| Eastern | 43 | 6,821,049 | 158,629 |
| Central | 34 | 5,482,239 | 161,242 |
| Rift Valley | 78 | 12,752,966 | 163,500 |
| Western | 33 | 5,021,943 | 152,180 |
| Nyanza | 42 | 6,269,489 | 149,274 |
| Nairobi | 18 | 4,397,073 | 244,282 |
The subdivisions of Kenya have been in place since 2010, replacing the old system. Under the Constitution of 2010 and other reforms to Provincial Administration the country acquired a new system of Counties. The previous Provinces were scrapped and the 46 Districts, in existence since 1992, were turned into Counties with elected governments.
The counties are divided into sub-counties and a further 290 constituencies, then 1450 Wards (to coincide with the County Assembly Wards of the County Government), and Villages.[1] The City of Nairobi, which enjoyed the status of a full administrative province, would become a County.
Under its old constitution, Kenya comprised eight provinces each headed by a Provincial Commissioner (centrally appointed by the president). The provinces (mkoa singular mikoa plural in Swahili) were subdivided into districts (wilaya). There were 69 districts at the 1999 census. Districts were then subdivided into 497 divisions (taarafa). The divisions are then subdivided into 2,427 locations (mtaa) and then 6,612 sublocations (mtaa mdogo).[2]