🇬🇧 United Kingdom · Northern Ireland
Belfast postcodes
Belfast, Northern Ireland, has 18 postcode districts, from BT1 to BT29. Which one applies depends on the street address.
- Postcode Districts
- 18
- Population
- 348,005
- Region
- Northern Ireland
- Coordinates
- 54.5968, -5.9254
All Belfast postcode districts
No code matches.
Data: GeoNames (CC BY 4.0) and zipcodestack.
UK postcodes have two parts. These lists show the first part, the postcode district (outward code), e.g. SW1A. A full postcode such as SW1A 1AA covers around 15 addresses; the zipcodestack API covers 2.6 million full UK postcodes.
Nearby cities
Find every code around Belfast with the radius search.
Frequently asked questions
What is the postcode of Belfast?
How many postcode districts does Belfast have?
How do I find the exact postcode for an address in Belfast?
Postal code API
Belfast postcode districts in your app
zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.
/v1/code/city documentation ZIP code API All documentation
300 free requests every month. No credit card required.
GET https://api.zipcodestack.com/v1/code/city?city=Belfast&country=gb
{
"query": { "city": "Belfast", "country": "gb" },
"results": ["BT1", "…"]
}