The Nairobi General Post Office (GPO) is not a place, but it is the main postal office headquarters for all postal offices in Kenya, located in Nairobi’s Central Business District. It was established in 1906 during the British Colonial rule in Kenya, with a Major restructuring in 1998 when the Postal Corporation of Kenya (PCK) was established. The Nairobi GPO itself handles mail sorting and distribution across all the Nairobi county constituencies, along with other postal services that Posta Kenya provides.
Quick Facts About Nairobi GPO
| Category | Details |
|---|---|
| Official Name | Nairobi General Post Office (GPO) |
| Postal Code | 00100 |
| Physical Address | PR79+HF5, Kenyatta Ave, Nairobi |
| Phone Number | 0719 072600 / 020 3242000 |
| Operating Hours | Mon–Fri: 8:00 AM – 7:00 PM; Closed on Sunday & public holidays |
| Service Area | Whole Nairobi County |
| Year Established | 1906 |
| Historical Significance | Colonial-era landmark; Kenya’s first major post office |
| Services Evolution | Expanded from traditional mail to financial services and digital tracking |
| Notable Milestones | 2018: Integrated Huduma Centre for government services |
What is the Nairobi GPO Postal Code?
The Nairobi GPO postal code is 00100, which is commonly used when also referring to the Nairobi Postal code. However, in general, this code (00100) applies specifically to mail addressed to the GPO building or its PO boxes, distinguishing it from neighboring post offices like City Square (00200) or Eastleigh (00610)
The postal code for the Nairobi Post office uses Kenya’s 5-digit postal code as provided by the Kenya Postal Corporation. Under these systems, the first two digits in any Kenya postal code, i.e., 00, represent the postal region; in Nairobi’s case, it’s designated 0, while the last three digits pinpoint the specific delivery office or area within the region.
To use the Nairobi GPO code correctly, addresses should include:
- Recipient’s name
- PO Box number (if applicable)
- 00100 as the postal code
- “Nairobi, Kenya” as the destination.
Here is a more visualized example:
Joseph Peters
P.O. Box 12345
00100 Nairobi, Kenya
Services Available at Nairobi GPO
Many Kenyans think that the Nairobi GPO is only designed to offer mail services, both domestic and international, but that is entirely false. The Postal offices offer quite a number of services as listed in the table below:
| Service Category | Specific Services | Fee/Cost |
|---|---|---|
| Mail Services | Domestic Mail | Varies by weight |
| International Mail (Air/Sea/Overland) | Varies by weight and destination | |
| Private Letter Boxes | Corporate: Ksh 9,450 Individual: Ksh 2,000 Special corporate: Ksh 6,225 Learning & religious: Ksh 7,725 Sub post office: Ksh 1,320 | |
| Private Bags | Varies | |
| Direct Mail Marketing (Addressed/Non-addressed) | Varies by volume | |
| Business Reply Services | Varies | |
| Franked Mail | Varies | |
| Philately (Stamp collection) | Varies by item | |
| M-Post | Ksh 400 per year | |
| Courier Services | EMS International | Varies by weight and destination |
| EMS Domestic (Same Day) | Varies by weight (up to 50kg) | |
| EMS Overnight | Varies by weight (up to 50kg) | |
| EMS Bulk Rate | Flat rate for shipments over 2000kg | |
| EMS Customized | Varies by requirements | |
| Posta Parcel (Domestic) | Varies by weight (up to 50kg) | |
| Posta Parcel (International) | Varies by weight (up to 31.5kg) | |
| Posta Cargo (Clearing & Forwarding) | Varies by service | |
| Payment Services | Domestic Money Order | Varies by amount |
| Institutional Money Order | Special low rates | |
| Posta Pesa (Agency Banking) | Varies by transaction | |
| Utility Payments | Varies by service provider | |
| Posta Pay (Electronic Funds Transfer) | Varies by amount | |
| Agency Banking | Balance Inquiry | Varies by bank |
| Mini-Statement | Varies by bank | |
| Cash Withdrawals | Varies by bank | |
| Cash Deposits | Varies by bank | |
| Bills Payment | No extra cost to customer | |
| Telecommunication Services (Safaricom, Mobikash, Airtel) | Varies by service | |
| Online Services | Box Services | Varies |
| Locate Office | Free | |
| Track Parcel | Free | |
| Postliner Bus | Varies by route | |
| E-Commerce | Various online shipping services | Varies |
| Pick and Drop | Collection and delivery services | Varies |
Opening Hours and Best Times to Visit
If you are planning to visit the Nairobi GPO office, the following are the working hours:
| Day | Opening Hours | Peak/Quiet Times |
|---|---|---|
| Monday | 8:00 AM – 5:00 PM | Peak: 9:00–11:00 AM |
| Tuesday | 8:00 AM – 5:00 PM | Quiet: 2:00–4:00 PM |
| Wednesday | 8:00 AM – 5:00 PM | Peak: Lunch hours (12:00–1:30 PM) |
| Thursday | 8:00 AM – 5:00 PM | Quiet: Mid-morning |
| Friday | 8:00 AM – 5:00 PM | Peak: Pre-weekend rush |
| Saturday | 9:00 AM – 12:00 PM | |
| Sunday | Closed | |
| Public Holidays | Closed |
Frequently Asked Questions (FAQ)
What is the postal code for GPO Nairobi?
00100
Which Zip Code is 00100 in Kenya?
00100 is a postal code that belongs to the Nairobi General Postal Office (GPO)
What is the postal code for Nairobi County Government?
P.O. Box 30075-00100, Nairobi, Kenya.
Which code is Nairobi County?
47
What is the postal code for the United Nations in Nairobi?
P.O. Box 30030, GPO, Nairobi, 00100, Kenya.