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What is the Kajiado Postal Code? The main postal code for Kajiado is 01100 (Kajiado GPO — General Post Office). Kajiado County postal codes cover multiple 5-digit codes from 00205 to 01101, serving all towns and post offices across the county’s 21,292 km². To send mail to Kajiado Town, use: P.O. Box [Number]-01100, Kajiado, Kenya.
Kajiado County, officially County Number 034, is one of the largest counties in Kenya by land area, covering approximately 21,292 square kilometres in what was formerly the Rift Valley Province. The county lies directly south of Nairobi and shares a border with the capital city along the iconic Ngong Hills. Despite its vast size, much of the county is semi-arid savannah that forms the traditional homeland of the Maasai people, who have inhabited this land for centuries as pastoralists.
The county capital is Kajiado Town, served by the Kajiado General Post Office (GPO) with the main postal code 01100. However, the largest and most populous town in the county is Ongata Rongai (postal code 00511), a rapidly growing suburb that borders Nairobi and has attracted hundreds of thousands of residents due to its proximity to the capital. All post offices in Kajiado County fall under postal region prefix 0, placing the county within the Nairobi and Central Kenya postal zone.
Kajiado County Post Offices and Postal Codes
Kajiado County has post offices spread across its five constituencies. The table below lists every post office, its postal code, location, and the sub-county it serves. All codes begin with 0, falling within the Nairobi and Central Kenya postal region administered by Posta Kenya.
| Post Office | Postal Code | Town / Area | Sub-County |
|---|---|---|---|
| Kajiado GPO | 01100 | Kajiado Town | Kajiado Central |
| Kajiado North / Ngong | 00208 | Ngong Town | Kajiado North |
| Ongata Rongai | 00511 | Ongata Rongai | Kajiado North |
| Kiserian | 00205 | Kiserian | Kajiado North |
| Kitengela | 00242 | Kitengela | Kajiado East |
| Athi River | 00204 | Athi River (Mavoko) | Kajiado East |
| Namanga | 01101 | Namanga Border Town | Kajiado South |
| Loitokitok | 01200 | Loitokitok | Loitokitok |
| Kimana | 01201 | Kimana | Loitokitok |
| Ol Tukai | 01202 | Amboseli Area | Loitokitok |
| Bissel | 01108 | Bissel | Kajiado Central |
| Mashuru | 01105 | Mashuru | Kajiado Central |
| Ilbisil | 01106 | Ilbisil | Kajiado Central |
| Magadi | 01109 | Magadi Town | Kajiado West |
| Ewuaso Ng’iro | 01107 | Ewuaso Ng’iro | Kajiado West |
| Iloodokilani | 01103 | Iloodokilani | Kajiado West |
| Kaputiei North / Isinya | 01102 | Isinya | Kajiado East |
| Kaputiei | 01104 | Kaputiei | Kajiado East |
Kajiado County Constituencies and Sub-Counties
Kajiado County is divided into 5 constituencies, each doubling as a sub-county for administrative purposes.
| Constituency | Headquarters | Key Towns | Postal Code(s) |
|---|---|---|---|
| Kajiado North | Ngong | Ngong, Ongata Rongai, Kiserian | 00208, 00511, 00205 |
| Kajiado Central | Kajiado Town | Kajiado, Bissel, Mashuru, Ilbisil | 01100, 01108, 01105, 01106 |
| Kajiado East | Isinya | Kitengela, Athi River, Isinya, Kaputiei | 00242, 00204, 01102, 01104 |
| Kajiado West | Iloodokilani | Magadi, Iloodokilani, Ewuaso Ng’iro | 01109, 01103, 01107 |
| Kajiado South (Loitokitok) | Loitokitok | Loitokitok, Namanga, Kimana, Ol Tukai | 01200, 01101, 01201, 01202 |
Kajiado County Assembly Wards
Kajiado County has 25 county assembly wards, distributed across the 5 sub-counties. Each ward elects one Member of County Assembly (MCA) to the Kajiado County Assembly. The table below lists all 25 wards by sub-county.
| # | Ward Name | Sub-County |
|---|---|---|
| 1 | Olmoti | Kajiado North |
| 2 | Ildamat | Kajiado North |
| 3 | Keekonyokie | Kajiado North |
| 4 | Purko | Kajiado North |
| 5 | Ngong | Kajiado North |
| 6 | Kajiado Central | Kajiado Central |
| 7 | Kajiado North Ward | Kajiado Central |
| 8 | Kajiado East Ward | Kajiado Central |
| 9 | Kajiado South Ward | Kajiado Central |
| 10 | Imaroro | Kajiado Central |
| 11 | Kitengela | Kajiado East |
| 12 | Oloosirkon/Sholinke | Kajiado East |
| 13 | Kiti | Kajiado East |
| 14 | Ilkisonko | Kajiado East |
| 15 | Kaputiei North | Kajiado East |
| 16 | Magadi | Kajiado West |
| 17 | Ewuaso Kedong | Kajiado West |
| 18 | Iloodokilani | Kajiado West |
| 19 | Mosiro | Kajiado West |
| 20 | Entomoniat | Kajiado West |
| 21 | Loitokitok Ward | Loitokitok |
| 22 | Rombo | Loitokitok |
| 23 | Mbirikani/Eselenkei | Loitokitok |
| 24 | Kuku | Loitokitok |
| 25 | Kimana | Loitokitok |
Frequently Asked Questions About Kajiado Postal Codes
What is the postal code for Kajiado Town?
The postal code for Kajiado Town is 01100. This is the main General Post Office (GPO) for Kajiado County and the official postal code for the county headquarters. To send mail to 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 the largest and most populated town in Kajiado County, located within Kajiado North sub-county and bordering Nairobi. Despite being in Kajiado County, its postal code begins with 005, sharing the Nairobi postal zone.
What is the postal code for Kitengela?
Kitengela’s postal code is 00242. Kitengela is a rapidly growing town in Kajiado East sub-county, known for its proximity to Nairobi and its large residential and commercial developments fuelled by people relocating from the capital city.
What is the postal code for Ngong?
Ngong Town uses postal code 00208. Ngong is the headquarters of Kajiado North sub-county and is famous for the Ngong Hills. It serves as an administrative hub for the densely populated northern part of Kajiado County that borders Nairobi.
What is the postal code for Namanga?
Namanga’s postal code is 01101. Namanga is a border town between Kenya and Tanzania in Kajiado South sub-county. It is a major transit and trade point, with the Kenya-Tanzania border crossing being one of the busiest in East Africa.
What is the postal code for Loitokitok?
Loitokitok uses postal code 01200. Loitokitok is the headquarters of Loitokitok sub-county and is the main town serving the communities near Amboseli National Park and the slopes of Mount Kilimanjaro at Kenya’s southern border.
What is the postal code for Athi River (Mavoko)?
Athi River, also known as Mavoko, uses postal code 00204. It lies in Kajiado East sub-county and is a major industrial and residential town on the Nairobi-Mombasa highway, home to large cement factories and a growing urban population.
What is the postal code for Kiserian?
Kiserian uses postal code 00205. Kiserian is a fast-growing market town in Kajiado North sub-county, located along the road connecting Ngong and Ongata Rongai to Kajiado Town. It serves a large population of Maasai and mixed communities.
How many post offices are in Kajiado County?
Kajiado County has approximately 18 post offices operated by Posta Kenya, spread across the county’s 5 sub-counties. The busiest post offices are in Kajiado Town (01100), Ngong (00208), Ongata Rongai (00511), Kitengela (00242), and Athi River (00204), reflecting the most densely populated areas.
What postal region does Kajiado County fall under?
All Kajiado County postal codes fall under postal region prefix 0, which covers Nairobi and Central Kenya. This means Kajiado shares its postal administration with Nairobi, Kiambu, Muranga, Kirinyaga, Nyeri, and Nyandarua counties. The region is administered from the Nairobi GPO headquarters.
Does Kajiado County have a zip code?
Kenya does not use the term “zip code” that term is specific to the United States postal system. In Kenya, the correct term is postal code. Kajiado County’s postal codes are the 5-digit numbers such as 01100 (Kajiado), 00511 (Ongata Rongai), 00242 (Kitengela), and others listed in the tables above. When filling in international forms that ask for a “zip code”, use the appropriate Kajiado postal code for your specific town.