Rift Valley Region comprises 14 counties with postal codes ranging from 01100 (Kajiado) to 30700 (Elgeyo Marakwet). This expansive region, established under Kenya’s 2010 Constitution, covers approximately 182,505 km² and hosts over 12.75 million residents.
Rift Valley Region at a Glance
| Regional Information | Details |
|---|---|
| Total Counties | 14 |
| County Names | Nakuru, Uasin Gishu, Nandi, Bomet, Kericho, Baringo, Elgeyo Marakwet, Samburu, Laikipia, Turkana, Kajiado, Narok, West Pokot, Trans Nzoia |
| Postal Code Range | 01100 – 30700 |
| Regional Area (km²) | 182,505.1 |
| Population (2019) | 12,752,966 |
| Regional HQ | Nakuru |
| Major Economic Activities | Tea farming, Dairy, Tourism, Floriculture, Cereal farming |
| Primary Languages | Kalenjin, Maa, Turkana, Swahili, English |
| Climate Zones | Alpine (Mt. Kenya), Tropical (South), Arid (North) |
| Postal Distribution Centers | Nakuru GPO, Eldoret GPO, Kitale PSO |
| Cross-Border Points | Lokichoggio (South Sudan), Suam (Uganda) |
| Commercial Centers | Nakuru, Eldoret, Narok, Kitale |
| Tourist Destinations | Maasai Mara, Lake Nakuru, Lake Bogoria, Cherangani Hills |
Regional Administrative Structure
The Rift Valley Region is administered by a Regional Commissioner, who coordinates national government functions across the counties. The administrative hierarchy integrates national and devolved systems: county governors manage devolved functions, while the Regional Council (RC) oversees security, national projects, and cross-county coordination.
All the counties in the Rift Valley region are made up of various sub-counties and wards, which brings services from the national and County governments closer to the people.
Rift Valley Postal Codes
Rift Valley Postal Codes Varies from one County to another. The postal codes in these regions follow distinct geographic clusters; for example, northern counties have postal codes in the range of (30000-30700), central/southern counties (20000-20600), and Kajiado (01100).
| County | Headquarters | Postal Code | Major Towns |
| Kajiado | Kajiado | 01100 | Ongata Rongai, Namanga, Kiserian |
| Nakuru | Nakuru | 20100 | Naivasha, Molo, Gilgil |
| Kericho | Kericho | 20200 | Litein, Bureti |
| Bomet | Bomet | 20400 | Longisa, Sotik |
| Narok | Narok | 20500 | Kilgoris, Suswa |
| Samburu | Maralal | 20600 | Baragoi |
| Uasin Gishu | Eldoret | 30100 | Burnt Forest, Kesses |
| Trans Nzoia | Kitale | 30200 | Endebess |
| Nandi | Kapsabet | 30300 | Nandi Hills |
| Baringo | Kabarnet | 30400 | Marigat |
| West Pokot | Kapenguria | 30600 | Ortum |
| Elgeyo Marakwet | Iten | 30700 | Tambach |
| Turkana | Lodwar | 30500 | Kakuma |
| Laikipia | Rumuruti | 20300 | Nanyuki (also 10400 for facilities) |