Quick Answer:
- Postal Code(s): 00520 (Ruai).
- Sub-County: Kasarani (Ruai Ward is electorally in Kasarani Constituency, administered under Njiru Sub-County).
- Location: Eastern Nairobi along Kangundo Road, on the far east side of the city.
- Area: Approximately 98 km².
- Population (2019): About 97,000 residents at ward level.
- Ward Type: Low-density, mixed-use urban with significant informal and peri-urban development.
- Main Areas: Ruai Town, Ruai East, Kamulu vicinity, Kangundo Road corridor, areas around Dandora Estate Sewage Treatment Works.
Ruai uses postal code 00520 for most addresses because it is recognized as the dedicated code for Ruai in Nairobi’s postal system. Ruai Ward lies on the eastern side of Nairobi, roughly 30 kilometres by road from the city centre along Kangundo Road. It forms the far-eastern part of Kasarani Constituency but is administered as part of Njiru Sub-County, bordering areas such as Kamulu and Njiru.
Neighboring Wards & Boundaries
| Direction | Neighboring Ward/Area | Sub-County | Postal Code |
|---|---|---|---|
| North | Areas near Njiru and parts of Kasarani / Ruaraka side | Mainly Kasarani / Njiru side of Nairobi | Commonly 00520 (Ruai) or nearby Nairobi codes |
| South | Areas towards Embakasi and Eastlands | Embakasi-related sub-counties | Codes such as 00521 (Embakasi) and general 00100 in some institutions |
| East | Kamulu and further settlements along Kangundo Road | Njiru / outskirts toward Machakos side | Often use Ruai-related or outskirt Nairobi/Machakos codes depending on exact location |
| West | Inner Eastlands and areas closer to Nairobi CBD | Nairobi City (various sub-counties) | Mix of Nairobi codes including 00100, 00500 series and others |
Postal Codes For Ruai (Kasarani)
| # | Ward/Area | Location / Facility | Postal Code |
|---|---|---|---|
| 1 | Ruai Town | Ruai Town Centre Residential Area | 00520 |
| 2 | Ruai Town | Ruai Town Commercial Core (shops and small businesses) | 00520 |
| 3 | Ruai East | Ruai East Residential Area along Kangundo Road | 00520 |
| 4 | Ruai West | Western side residential plots towards Njiru direction | 00520 |
| 5 | Kangundo Road Corridor (Ruai) | Built-up stretch of Ruai along Kangundo Road | 00520 |
| 6 | Dandora Estate Sewage Works Area | Area around Dandora Estate Sewage Treatment Works | 00520 |
| 7 | Kamulu Vicinity (Ruai Side) | Ruai-side residential developments approaching Kamulu | 00520 |
| 8 | Ruai Police Station Area | Mixed-use neighbourhood around Ruai Police Station | 00520 |
| 9 | Ruai Mosque Area | Residential cluster around Ruai mosque and adjacent facilities | 00520 |
| 10 | Ruai Market Area | Informal and formal trading spaces around Ruai Market | 00520 |
| 15 | Ruai Town | Kangundo Road (section through Ruai) | 00520 |
| 16 | Ruai Town | Access road to Ruai Town Centre from Kangundo Road | 00520 |
| 17 | Ruai East | Local access roads linking Ruai East estates to Kangundo Road | 00520 |
| 18 | Ruai West | Feeder roads connecting west-side plots toward Njiru | 00520 |
| 19 | Dandora Estate Sewage Works Area | Internal access road to Dandora Estate Sewage Treatment Works | 00520 |
| 25 | Ruai Town | Ruai Market | 00520 |
| 26 | Ruai Town | Ruai Town main shopping area (retail shops and services) | 00520 |
| 27 | Ruai Town | Small business centres along Kangundo Road in Ruai | 00520 |
| 28 | Ruai East | Local dukas and kiosks serving Ruai East residential area | 00520 |
| 35 | Ruai Town | Elimu House School Ruai (private school) | 00520 |
| 36 | Ruai Town | Riena School Ruai (kindergarten and primary) | 00520 |
| 37 | Ruai Town | Twin Birds Academy Ruai (primary school) | 00520 |
| 38 | Ruai Town | Spring of Mercy Primary School Ruai | 00520 |
| 39 | Ruai Area | Other primary day schools distributed within Ruai neighbourhoods | 00520 |
| 40 | Ruai Area | Local secondary schools serving Ruai learners | 00520 |
| 50 | Ruai/Kangundo Road | RFH Specialist Hospital (large private facility) | 00520 |
| 51 | Ruai Town | Ruai Family Hospital | 00520 |
| 52 | Ruai Town | Megalife Hospital Ruai | 00520 |
| 53 | Ruai Town | Smaller private clinics and chemists in Ruai Town | 00520 |
| 54 | Ruai East | Local outpatient clinics serving Ruai East | 00520 |
| 60 | Ruai Town | Ruai Mosque (on or near Kangundo Road) | 00520 |
| 61 | Ruai Town | Local Christian churches within Ruai Town area | 00520 |
| 62 | Ruai Residential Areas | Churches and smaller worship centres in Ruai residential zones | 00520 |
| 70 | Ruai Town | Ruai community meeting and social spaces (open grounds and halls) | 00520 |
| 71 | Dandora Estate Sewage Works Area | Operational and support facilities linked to Dandora Estate | 00520 |
| 75 | Ruai Town / Nearby | Ruai Post Office or postal counter service point | 00520 |
| 76 | Nairobi CBD | Nairobi GPO (for P.O. Boxes such as some 00100 Ruai listings) | 00100 |
Frequently Asked Questions
1. What is the postal code for Ruai Ward?
00520
2. Where is the nearest post office to Ruai?
Residents in Ruai usually use the local Ruai postal facility associated with code 00520, located in or close to Ruai Town.
3. What is the postal code for Ruai Town along Kangundo Road?
00520