Mapping Data

UK Postcode Sector Boundary Files

GeoJSON and Shapefile boundary data for all 10,506 UK postcode sectors. Ready for QGIS, ArcGIS, Mapbox, or any GIS platform.

Boundary file packages

Pay once, download instantly, use for your projects.

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Technical specifications

File Formats

  • GeoJSON (.geojson)
  • Shapefile (.shp/.dbf/.prj)
  • GPKG (GeoPackage)
  • KML for Google Earth

Coverage

  • England · Scotland · Wales · N. Ireland
  • 10,506 postcode sectors
  • March 2025 boundaries
  • ONS-aligned geometry

Projection Options

  • WGS84 / EPSG:4326 (standard)
  • British National Grid EPSG:27700
  • ETRS89 EPSG:3034 (our working CRS)

What's Included

  • Postcode sector code
  • Postcode district & area
  • Simplified + full detail versions
  • Centroid coordinates
Check coverage
Is your postcode sector in the dataset?

Every UK postcode sector is included in our boundary files — confirm yours and see the data we hold.

Try: PE7 8 · SW1A 1 · M1 1 — or type a full postcode and we will find the sector
Need custom boundaries?

We can build any geography you need

Drive time polygons, custom areas, or bespoke GIS work — talk to us about your project.

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