Coastal Postal Codes in Kenya( Mombasa, Kwale, Kilifi & More)

Quick Answer: The Coastal Part of Kenya is divided into six counties: Mombasa, Kwale, Kilifi, Taita-Taveta, Tana River, and Lamu, each with unique postal codes.Mombasa uses codes from 80100 to 80122, Kwale operates under 80400 to 80410, Kilifi covers 80108 to 80213 (including Malindi 80200), Taita-Taveta ranges from 80300 to 80305, Tana River uses 80500 to 80502, and Lamu has 80600 to 80602.

The coastal region of Kenya comprises six counties, each with its own identity and unique postal code system managed by the Postal Corporation of Kenya, popularly known as Posta Kenya. Understanding the postal code of each Coastal county is essential to make sending and receiving mail much easier, as each area has its own unique code. The coastal postal system serves over 3 million residents across six counties, handling everything from personal mail to business shipments and parcel deliveries.

What Are Coastal Postal Codes?

Coastal postal codes are five-digit numbers used by Posta Kenya to identify specific post offices and delivery zones in Kenya’s six coastal counties. All coastal codes start with “80”, which identifies the broader Coast region except for Tana River county, which starts with “70”. This differs from other regions like Nairobi (00), Nakuru (20), or Kisumu (40). The remaining three digits pinpoint the exact post office or delivery area within each county.

For example, when you see a postal code like 80400, here’s how to read it:

• 80 = Coast region
• 400 = Ukunda Post Office (Kwale County)

All 6 Coastal Counties And Their Postal Codes.

Here is a table of all six coastal counties and their main postal codes.

County	Main Postal Code	Code Range	Population (Approx.)
Mombasa	80100	80100 – 80122	1.2 million+
Kwale	80400	80400 – 80410	800,000+
Kilifi	80108	80108 – 80213	1.5 million+
Taita-Taveta	80300	80300 – 80305	340,000+
Tana River	80500	80500 – 80502	315,000+
Lamu	80600	80600 – 80602	143,000+

Mombasa County Postal Codes (80100 – 80122)

Mombasa is Kenya’s second-largest city and the main port on the East African coast. The county has a population of over 1.2 million people spread across six sub-counties: Mvita, Changamwe, Jomvu, Kisauni, Likoni, and Nyali. While many people think 80100 works for all Mombasa addresses, that’s not entirely accurate. The code 80100 specifically serves the Mombasa Town GPO in Mvita (the island), but other areas have their own codes. For a complete guide on all Mombasa postal codes, check out our detailed Mombasa Postal Codes article.

Kwale County Postal Codes (80400 – 80410)

Kwale County is known for its pristine beaches, including the famous Diani Beach, and rich cultural heritage. The county borders Mombasa to the north and Tanzania to the south. With a population of around 800,000 people, Kwale relies heavily on tourism and agriculture. The postal codes here range from 80400 to 80410, covering all four sub-counties: Msambweni, Lunga Lunga, Matuga, and Kinango. Read more in our complete Kwale Postal Codes guide.

Kilifi County Postal Codes (80108 – 80213)

Kilifi County is the largest coastal county by area, stretching from Mtwapa in the south to Malindi in the north. With a population of about 1.5 million people, the county is known for its tourism industry, particularly in Malindi and Watamu, as well as agriculture in the hinterlands. Kilifi’s postal codes are the most diverse on the coast, ranging from 80108 to 80213, covering seven sub-counties. Check our detailed Kilifi Postal Codes article for the complete breakdown.

Taita-Taveta County Postal Codes (80300 – 80305)

Taita-Taveta County is located in the interior of the coast, known for its highlands, wildlife sanctuaries, and the famous Tsavo National Parks. The county has a population of about 340,000 people spread across four sub-counties: Taveta, Wundanyi, Mwatate, and Voi. Postal codes here range from 80300 to 80305, serving both urban centers and rural communities. Visit our complete Taita-Taveta Postal Codes guide for more details.

Tana River County Postal Codes (80500 – 80502)

Tana River County is one of Kenya’s largest counties by land area but has a relatively small population of about 315,000 people. It’s classified as an Arid and Semi-Arid Land (ASAL) region, with most residents engaged in pastoralism and irrigation farming along the Tana River. The county has three main postal codes covering three sub-counties: Garsen, Galole, and Bura. Learn more in our Tana River Postal Codes article.

Lamu County Postal Codes (80600 – 80602)

Lamu County is a unique archipelago known for its rich Swahili culture and UNESCO World Heritage sites. The county includes Lamu Island, Manda Island, Pate Island, and mainland areas. With a population of around 143,000 people, it’s the smallest coastal county but one of the most culturally significant. Postal codes range from 80600 to 80602, covering both island and mainland areas. See our Lamu Postal Codes guide for complete information.

Complete List of Coastal Post Offices

Posta Kenya operates numerous post offices across all six coastal counties. Each post office serves specific geographic areas and offers various services including P.O. Box rentals, parcel delivery, and EMS services.

Post Office Name	Postal Code	County	Sub-County/Location
Mombasa Town GPO	80100	Mombasa	Mvita (Digo Road, CBD)
Nyali Post Office	80118	Mombasa	Kisauni (Nyali Estate)
Likoni Post Office	80110	Mombasa	Likoni (Ferry Area)
Bamburi Post Office	80101	Mombasa	Kisauni (Bamburi Estate)
Changamwe Post Office	80102	Mombasa	Changamwe (Industrial Area)
Port Reitz Post Office	80115	Mombasa	Changamwe (Port Area)
Mikindani Post Office	80105	Mombasa	Jomvu
Ukunda Post Office	80400	Kwale	Msambweni (Diani area)
Diani Beach Post Office	80401	Kwale	Msambweni (Beachfront)
Msambweni Post Office	80404	Kwale	Msambweni Town
Kinango Post Office	80405	Kwale	Kinango
Kwale Post Office	80403	Kwale	Matuga (County HQ)
Lunga Lunga Post Office	80402	Kwale	Lunga Lunga (Border town)
Kilifi Town Post Office	80108	Kilifi	Kilifi (County HQ)
Malindi Post Office	80200	Kilifi	Malindi Town
Watamu Post Office	80202	Kilifi	Kilifi North
Mtwapa Post Office	80109	Kilifi	Kilifi South
Ganze Post Office	80205	Kilifi	Ganze
Kaloleni Post Office	80105	Kilifi	Kaloleni
Mariakani Post Office	80113	Kilifi	Kaloleni
Voi Post Office	80300	Taita-Taveta	Voi Town
Taveta Post Office	80302	Taita-Taveta	Taveta (Border town)
Wundanyi Post Office	80304	Taita-Taveta	Wundanyi (Taita Hills)
Mwatate Post Office	80305	Taita-Taveta	Mwatate
Hola Post Office	80500	Tana River	Galole (County HQ)
Garsen Post Office	80501	Tana River	Garsen
Bura Post Office	80502	Tana River	Bura
Lamu Island Post Office	80600	Lamu	Lamu East (Island)
Mpeketoni Post Office	80601	Lamu	Lamu West (Mainland)
Witu Post Office	80602	Lamu	Lamu West

How to Use Coastal Postal Codes Correctly

Knowing how to use the correct postal code ensures your mail reaches its destination without delays. Here are three practical examples showing how to format addresses for different coastal locations:

Example 1: Sending Mail to Mombasa Island

John Kamau

P.O. Box 1234-80100

Mombasa, Kenya

Example 2: Delivery to Diani Beach Resort

Mary Wanjiru

P.O. Box 567-80401

Diani Beach, Kwale

Kenya

Example 3: Mail to Lamu Island

Ahmed Hassan

P.O. Box 89-80600

Lamu Island, Kenya

How to Apply for a P.O. Box on the Coast

Getting a P.O. Box at any coastal post office is now easier than ever since Posta Kenya has moved the entire application process online, so you can apply from your phone or computer without visiting the post office first.

Here is the process to follow:

• Visit the Posta Kenya online portal at https://apps.posta.co.ke/boxupdate/
• Select “New P.O. Box Application” and choose your preferred coastal post office
• Fill in your personal details and upload a copy of your ID or passport
• Pay the application and rental fees via M-Pesa or bank
• Collect your P.O. Box keys from the post office after approval

Frequently Asked Questions (FAQs)

for all coastal postal codes in Kenya!with “80” showing they’re part of Kenya’s Coast region managed by Posta Kenya.