Kenya has 47 counties, established under the 2010 Constitution. These counties replaced the previous eight provinces, becoming the current administrative divisions since March 2013. Below is a list of the counties, organized from largest to smallest by area.
| County | Area (km²) |
|---|---|
| Turkana | 71,597.8 |
| Marsabit | 66,923.1 |
| Wajir | 55,840.6 |
| Garissa | 45,720.2 |
| Tana River | 35,375.8 |
| Mandera | 25,797.7 |
| Isiolo | 25,336.1 |
| Kitui | 24,385.1 |
| Kajiado | 21,292.7 |
| Samburu | 20,182.5 |
| Narok | 17,921.2 |
| Taita-Taveta | 17,083.9 |
| Kilifi | 12,245.9 |
| Baringo | 11,075.3 |
| Laikipia | 8,696.1 |
| West Pokot | 8,418.2 |
| Kwale | 8,270.3 |
| Makueni | 8,008.9 |
| Nakuru | 7,509.5 |
| Meru | 7,003.1 |
| Lamu | 6,497.7 |
| Machakos | 5,952.9 |
| Homa Bay | 3,154.7 |
| Nyandarua | 3,107.7 |
| Elgeyo-Marakwet | 3,049.7 |
| Kakamega | 3,033.8 |
| Uasin Gishu | 2,955.3 |
| Nandi | 2,884.5 |
| Tharaka-Nithi | 2,609.5 |
| Migori | 2,586.4 |
| Embu | 2,555.9 |
| Siaya | 2,496.1 |
| Trans Nzoia | 2,469.9 |
| Kericho | 2,454.5 |
| Kiambu | 2,449.2 |
| Nyeri | 2,361.0 |
| Murang’a | 2,325.8 |
| Bungoma | 2,206.9 |
| Kisumu | 2,009.5 |
| Bomet | 1,997.9 |
| Busia | 1,628.4 |
| Kisii | 1,317.9 |
| Kirinyaga | 1,205.4 |
| Nyamira | 912.5 |
| Nairobi | 694.9 |
| Vihiga | 531.3 |
| Mombasa | 212.5 |
Largest County: Turkana (71,597.8 km²)
Smallest County: Mombasa (212.5 km²)
This list provides a clear view of the geographic distribution of counties in Kenya, ranging from expansive rural areas to smaller urban regions.
