About Postcodes UK
Postcodes UK is a free geographic reference site dedicated to the United Kingdom postcode system. Our editorial team researches and writes guides covering postcodes, distances, centroids and the tools that make location data accessible to everyone.
We combine Ordnance Survey data, Royal Mail postcode records and government open data to build a comprehensive picture of every postcode, town and county across England, Scotland, Wales and Northern Ireland.
Our goal is to make UK geographic data simple, accurate and freely available. Every article we publish is grounded in the datasets that power the site, and every distance, coordinate and boundary we reference has been verified against authoritative sources.
Data Sources & Credentials
Articles by Postcodes UK
The 20 Highest Settlements in England
The long-running argument over England's highest village doesn't have a tidy answer. Our elevation data for every settlement in the country throws up 20 places sitting above 400 metres — from the lead-mining hamlets of the North Pennines to the windswept streets of Dartmoor.
Read articleFamous UK Postcodes and the Stories Behind Them
From Buckingham Palace to Coronation Street, some UK postcodes are more famous than the streets they serve. Here are the stories behind them.
Read articleThe UK's Most and Least Dense Postcode Areas
Which parts of the UK pack the most postcodes into the smallest space? We analysed our database of 1.8 million postcodes to find out.
Read articleWhy the UK adds around 26,000 New Postcodes Every Year
Around 26,000 new postcodes are added in the UK each year. Here is why that happens, how quarterly updates work, and why fresh postcode data matters.
Read articleUnderstanding the Haversine Formula
The Haversine formula calculates distances between two points on the Earth. Here is how it works and how we use it across Postcodes UK.
Read articleWhat Is a Centroid and How Do We Use Them?
Centroids are the geographic centre points we use to plot postcodes, towns and counties on maps. Here is how they work and why they matter.
Read articleIntroducing Postcodes UK
A new free resource for exploring UK postcodes, cities, towns and villages. Find out what we offer and how we can help.
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