Kajiado Postal Codes: Post Offices and Code 01100
Quick Answer
Kajiado County, officially County Number 034, is one of Kenya’s largest counties by land area. It covers about 21,871 square kilometers according to the 2019 census and was part of the former Rift Valley Province. The county lies south of Nairobi and borders Nairobi to the northeast, Kiambu to the north, Narok to the west, and Machakos, Makueni and Taita Taveta to the east and south. The Ngong Hills are among the county’s best-known features.
Much of Kajiado is semi-arid savannah and the traditional homeland of the Maasai, whose pastoral way of life has shaped the county’s history and culture. The Maasai community remains prominent in rural areas, while towns have become increasingly diverse as they grow.
Kajiado Town is the county capital and is served by Kajiado GPO, postal code 01100. Ongata Rongai is another large and fast-growing urban center in the county. Its 2019 population was 178,795, and an official municipality plan projects further growth. Posta Kenya groups the confirmed Kajiado branch codes under its Nairobi postal region. This is a postal classification; it does not make Kajiado part of Nairobi County.
Kajiado County Post Offices and Postal Codes
Kajiado County has post offices across its five constituencies. The table below lists the offices and localities in the county, with confirmed codes shown.
| Post Office | Postal Code | Town / Area | Sub-County |
|---|---|---|---|
| Kajiado GPO | 01100 | Kajiado Town | Kajiado Central |
| Ngong Hills (Ngong) | 00208 | Ngong Town | Kajiado North |
| Ongata Rongai | 00511 | Ongata Rongai | Kajiado North |
| Kiserian | 00206 | Kiserian | Kajiado North |
| Kitengela | 00241 | Kitengela | Kajiado East |
| Namanga | 00207 | Namanga Border Town | Kajiado South |
| Loitokitok | 00209 | Loitokitok | Kajiado South |
| Kimana | Kimana | Kajiado South | |
| Ol Tukai | Amboseli area | Kajiado South | |
| Bissel | 01101 | Bissel | Kajiado Central |
| Mashuru | Mashuru | Kajiado Central | |
| Ilbisil | Ilbisil | Kajiado Central | |
| Magadi | Magadi Town | Kajiado West | |
| Ewuaso Ng’iro | Ewuaso Ng’iro | Kajiado West | |
| Iloodokilani | Iloodokilani | Kajiado West | |
| Kaputiei North / Isinya | Isinya | Kajiado East | |
| Kaputiei | Kaputiei | Kajiado East |
Kajiado County Constituencies and Sub-Counties
Kajiado County has five constituencies, each of which also serves as a sub-county for administrative purposes. Constituencies are represented in the National Assembly by a Member of Parliament (MP). The table shows each constituency, its headquarters, main towns and areas, and confirmed post-office codes.
| Constituency | Headquarters | Key Towns | Postal Code(s) |
|---|---|---|---|
| Kajiado North | Ngong | Ngong, Ongata Rongai, Kiserian | 00208, 00511, 00206 |
| Kajiado Central | Kajiado Town | Kajiado, Bissel, Mashuru, Ilbisil | 01100, 01101 |
| Kajiado East | Isinya | Kitengela, Isinya, Kaputiei | 00241 |
| Kajiado West | Iloodokilani | Magadi, Iloodokilani, Ewuaso Ng’iro | |
| Kajiado South | Loitokitok | Loitokitok, Namanga, Kimana, Ol Tukai | 00209, 00207 |
Kajiado County Assembly Wards
Kajiado County has 25 county assembly wards across its five sub-counties. Each ward elects one Member of County Assembly (MCA).
| # | Ward Name | Sub-County |
|---|---|---|
| 1 | Dalalekutuk | Kajiado Central |
| 2 | Ildamat | Kajiado Central |
| 3 | Purko | Kajiado Central |
| 4 | Matapato North | Kajiado Central |
| 5 | Matapato South | Kajiado Central |
| 6 | Keekonyoike | Kajiado West |
| 7 | Mosiro | Kajiado West |
| 8 | Ewuaso Nkidong’ | Kajiado West |
| 9 | Iloodokilani | Kajiado West |
| 10 | Magadi | Kajiado West |
| 11 | Kaputiei North | Kajiado East |
| 12 | Kitengela | Kajiado East |
| 13 | Oloorsirkon / Sholinke | Kajiado East |
| 14 | Kenyawa Poka | Kajiado East |
| 15 | Imaroro | Kajiado East |
| 16 | Rombo | Kajiado South |
| 17 | Kimana | Kajiado South |
| 18 | Kuku | Kajiado South |
| 19 | Imbirikani / Eselenkei | Kajiado South |
| 20 | Entonet / Lenkism | Kajiado South |
| 21 | Ngong | Kajiado North |
| 22 | Oloolua | Kajiado North |
| 23 | Olkeri | Kajiado North |
| 24 | Ongata Rongai | Kajiado North |
| 25 | Nkaimurunya | Kajiado North |
Frequently Asked Questions About Kajiado Postal Codes
What is the postal code for Kajiado Town?
Kajiado Town’s postal code is 01100, which is also the code for Kajiado GPO and the county headquarters. To send mail to a P.O. Box in Kajiado Town, write: P.O. Box [Number]-01100, Kajiado, Kenya.
What is the postal code for Ongata Rongai?
Ongata Rongai uses postal code 00511. It is in Kajiado North and is one of the county’s largest urban centers.
What is the postal code for Kitengela?
Kitengela’s postal code is 00241. The town is in Kajiado East and has grown alongside residential and commercial development linked to its proximity to Nairobi.
What is the postal code for Ngong?
Ngong uses postal code 00208, listed for Ngong Hills Post Office. Ngong is the headquarters of Kajiado North and is known for the nearby Ngong Hills.
What is the postal code for Namanga?
Namanga’s postal code is 00207. It is a border town in Kajiado South on the Kenya–Tanzania border and serves as a crossing point for travel and trade between the two countries.
What is the postal code for Loitokitok?
Loitokitok uses postal code 00209. It is the headquarters of Kajiado South and serves communities near Amboseli National Park and Mount Kilimanjaro along Kenya’s southern border.
What is the postal code for Athi River (Mavoko)?
Athi River uses postal code 00204, but it is in Mavoko Sub-County, Machakos County, not Kajiado. It is an industrial and residential town on the Nairobi–Mombasa highway, with cement factories and expanding urban development.
What is the postal code for Kiserian?
Kiserian uses postal code 00206. It is a growing market town in Kajiado North, along the road connecting Ngong and Ongata Rongai with Kajiado Town.
What postal region does Kajiado County fall under?
Posta Kenya lists the confirmed Kajiado branches under its Nairobi postal region. The postal-region grouping also includes branches in Nairobi, Kiambu, Murang’a, Kirinyaga, Nyeri and Nyandarua. This classification is separate from county boundaries: Kajiado remains its own county.
Does Kajiado County have a ZIP code?
“ZIP code” is specific to the United States Postal Service. In Kenya, the term is “postal code.” Kajiado uses five-digit codes, including 01100 for Kajiado Town, 00511 for Ongata Rongai, 00241 for Kitengela, and 00209 for Loitokitok. When a form asks for a ZIP code or postcode, enter the postal code for the recipient’s post office or P.O. Box.
