Nairobi GPO Postal Code (00100): Location, Hours, Services

The Nairobi GPO postal code is 00100, one of Kenya’s best-known postal codes. Whether you’re applying for a P.O. Box, sending parcels, or need a code for an online form, this guide covers the General Post Office in Nairobi.

What is Nairobi GPO?

Nairobi GPO (General Post Office) is the headquarters of the Postal Corporation of Kenya (Posta Kenya) and a main post office serving Nairobi’s Central Business District. It is located in Posta House on Kenyatta Avenue. Nairobi became the country’s postal headquarters after the service moved from Mombasa on 1 March 1909; the GPO building was also completed around that time.

The official Postal Code for Nairobi GPO is 00100. You can use this postal address for PO Box services in Kenya. However, this code should not be automatically treated as the code for every street, institution, or neighborhood in central Nairobi.

Alongside the post office, the GPO Huduma Center at Teleposta Building provides access to government services, including ID, KRA and NTSA services. Check the centre’s current service list before visiting, since available services can change.

GPO Location & How to Get There

The address for Nairobi GPO is:

If you are further confused, the GPO is easy to find using these landmarks:

• Directly opposite: Kipande House (KCB Bank headquarters)
• Adjacent to: Teleposta Towers
• Near: Nyayo House (Immigration offices)
• Walking distance: KICC (5 minutes), Hilton Hotel (3 minutes)

How to Get There

By Matatu: Routes passing through CBD—alight at GPO/Kencom stage on Kenyatta Avenue

By Bus: City Hoppa and other buses to CBD—GPO stage

By Car: Parking available at nearby Teleposta Towers, KICC, or street parking on Kenyatta Avenue (paid)

Walking: From Kencom Bus Station (2 minutes), from Railway Station (10 minutes), from Archives (5 minutes)

Opening Hours

Mail & Parcel Services

EMS Express Courier

P.O. Box Rental (Annual Fees)

MPost (Virtual Postal Address)

Other Services

How to Get a P.O. Box at GPO Nairobi

Getting a P.O. Box at Posta Kenya’s GPO in Nairobi gives individuals, businesses and organizations a regular place to receive mail. A box can be useful if you live in an apartment, share a home, or do not have reliable door-to-door mail delivery. It can receive letters, statements, parcels and official documents addressed to the box.

You can apply at a Posta Kenya branch, including GPO, or start online through the Posta application portal. The portal shows the current application steps, charges and payment options.

Before applying, prepare the documents for your account type.

For individuals:

• Your original National ID or passport and a photocopy
• A completed application form

For companies or organizations:

• A copy of the Certificate of Registration or incorporation
• A Company PIN Certificate
• A copy of at least one director’s ID
• A completed application form

Posta may ask for additional information during the application. Follow the current checklist provided by the branch or online portal.

Complete the application form with your name, contact information, physical address, and preferred box category, such as individual, corporate, or special category. You can indicate a preferred box number, but allocation depends on availability.

Submit the form and required documents, then pay the amount shown by Posta. Payment methods can differ between the counter and online application, so follow the instructions for the channel you use.

Allow up to two working days for processing. If you need to collect a key at the branch, bring your payment receipt and ID. Once Posta confirms the allocation, use the box number and its postal code when giving out your mailing address.

Areas in Nairobi Served by Postal Code 00100

Nairobi GPO’s code is 00100, but that does not mean there is a single code for every neighborhood in the original list. Use the code for the post office or P.O. Box connected to the exact address.

For nearby area codes, see Central Nairobi postal codes.

Key Institutions Using 00100

Major organizations with P.O. Box addresses ending in 00100 include:

History of Nairobi GPO

The General Post Office is one of Nairobi’s long-standing postal landmarks.

Frequently Asked Questions

What is the postal code for Nairobi GPO?

The Nairobi GPO postal code is 00100. Use it for a P.O. Box registered at the General Post Office on Kenyatta Avenue.

Where exactly is Nairobi GPO located?

Nairobi GPO is in Posta House on Kenyatta Avenue in the CBD. It is opposite Kipande House and near Teleposta Towers and Nyayo House.

What are the GPO Nairobi opening hours?

The GPO counter is open Monday to Saturday from 8:00 am to 5:00 pm and is closed on Sundays. Check with Posta before visiting on a public holiday.

How much does a P.O. Box cost at GPO?

Individual P.O. Box rental costs KSh 2,000 to 2,320 per year. Corporate boxes cost KSh 6,000 to 10,960 per year. A refundable key deposit of KSh 560 is required for new applications.

Can I apply for a P.O. Box online?

Yes. You can start an application through Posta’s online P.O. Box portal. Follow the portal’s instructions for payment and any branch visit needed to collect your key.

What services are available at Nairobi GPO?

The GPO handles letters and parcels, EMS courier, P.O. Box rentals, MPost, money orders, customs clearance, Poste Restante and parcel tracking. Huduma services are also available at the GPO location; check the current centre list for specific services.

How do I pay for P.O. Box renewal via M-Pesa?

Use Posta Paybill 506500. Enter your account number as BoxNumber-PostalCode, for example, 12345-00100. Check the portal for the payment periods currently available.

What areas use the 00100 postal code?

00100 is the postal code for Nairobi GPO. It is commonly associated with CBD mailing addresses, but it should not be assumed for every nearby neighborhood. For a P.O. Box, use the code assigned to that box; for another address, confirm the code with the recipient.

Contact Nairobi GPO