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December 17, 2025 · Tanzania Tenders & Procurement Notices

Nairobi Postal Code: Complete List and Area Guide

Nairobi Postal Code: Complete Guide to Nairobi Postal Codes and How to Use Them

Introduction

Understanding the Nairobi Postal Code system is essential for anyone sending or receiving mail, parcels, or official documents within Kenya’s capital. Whether you are filling out an online form, registering a business, ordering deliveries, or sending letters, using the correct Nairobi Postal Code ensures your mail reaches the right destination without delays.

This article explains what a Nairobi Postal Code is, why it matters, how the system works, and provides a clear, organized list of postal codes across Nairobi. By the end, you’ll know exactly how to find, use, and verify the correct code for any area in the city.

What Is a Nairobi Postal Code?

A Nairobi Postal Code is a five-digit numeric code used to identify specific postal delivery areas within Nairobi. Kenya uses a structured postal system similar to ZIP codes, designed to improve efficiency and accuracy in mail delivery.

Each Nairobi Postal Code follows this structure:

  • First two digits – Identify the postal region

  • Last three digits – Identify the specific post office or delivery zone

For example, 00100 represents the General Post Office (G.P.O.) in Nairobi.

Why the Nairobi Postal Code Matters

Using the correct Nairobi Postal Code is important because it:

  • Ensures faster and accurate mail delivery

  • Reduces lost or misdirected parcels

  • Is required for official forms, registrations, and billing

  • Helps courier services and logistics companies deliver efficiently

Many online platforms will reject addresses without a valid Nairobi Postal Code, making it a critical detail.

Who Manages Nairobi Postal Codes?

All Nairobi Postal Code allocations are managed by the Postal Corporation of Kenya, commonly known as Posta Kenya. This organization oversees postal services, post offices, and address verification nationwide.

For official guidance, post office locations, or postal services, you can visit the Posta Kenya website at https://www.posta.co.ke.

Complete List of Nairobi Postal Codes

Below is a clear and organized list of commonly used Nairobi Postal Code entries by area:

Central Business District and Surrounding Areas

  • G.P.O. Nairobi – 00100

  • City Square – 00200

  • Jamia – 00101

  • State Law – 00102

  • Tom Mboya Street – 00400

  • Ronald Ngala Street – 00300

Eastlands and Industrial Areas

  • Buruburu – 00515

  • Dandora – 00516

  • Embakasi – 00521

  • Enterprise Road – 00500

  • Kayole – 00518

  • Makongeni – 00510

  • Mlolongo – 00519

  • Ruai – 00520

  • Viwandani – 00507

Westlands and Northern Nairobi

  • Westlands – 00800

  • Parklands – 00623

  • Muthaiga – 00619

  • Gigiri – 00601

  • Village Market – 00621

  • Ruaraka – 00618

Southern and Western Nairobi

  • Karen – 00502

  • Langata – 00509

  • Lavington – 00603

  • Ngong Road – 00505

  • Uthiru – 00605

  • Kangemi – 00625

  • Lower Kabete – 00604

Institutions and Landmarks

  • J.K.I.A. Airport – 00501

  • Kenyatta National Hospital – 00202

  • Kenyatta University – 00609

  • Nyayo Stadium – 00506

  • Sarit Centre – 00606

  • Yaya Towers – 00508

How to Use a Nairobi Postal Code Correctly

Step-by-Step Address Format

Step 1: Write the recipient’s full name
Step 2: Add the street or building name
Step 3: Include the correct Nairobi Postal Code and area name

Example:

P.O. Box 12345 – 00100
Nairobi, Kenya

Using the correct Nairobi Postal Code improves delivery accuracy and processing speed.

How to Find the Correct Nairobi Postal Code

If you are unsure which Nairobi Postal Code applies to your location:

  1. Identify the nearest post office or major landmark

  2. Match it with the official postal code list

  3. Confirm details through Posta Kenya offices or their official website

This is especially useful for new estates, offices, or institutions.

Common FAQs About Nairobi Postal Code

Is 00100 the only Nairobi Postal Code?

No. 00100 is for G.P.O. Nairobi only. The city has many postal codes assigned to different areas.

Can two areas share the same Nairobi Postal Code?

Yes. Some nearby locations or institutions may share a Nairobi Postal Code if served by the same post office.

Is the Nairobi Postal Code required for online forms?

Yes. Many government, banking, and delivery platforms require a valid Nairobi Postal Code.

Additional Tips for Using Nairobi Postal Code

  • Always double-check the code when filling official documents

  • Use the post office nearest to your location for accuracy

  • Keep the Nairobi Postal Code consistent across all records

Conclusion

The Nairobi Postal Code system plays a vital role in ensuring smooth communication, reliable deliveries, and accurate address identification across the city. Knowing the correct code for your area saves time, avoids errors, and keeps your personal or business correspondence running efficiently.

With this guide, you now have a clear understanding of how Nairobi postal codes work and how to use them correctly in everyday situations.