Skip to main content

Help us improve the National Data Library - complete this short survey

Close survey banner

Filters

673 results
  • Postcode to Postcode Sector to Postcode District to Postcode Area (March 2021) Lookup in EW

    Publisher
    Office for National Statistics
    Updated
    11 August 2025
    A lookup between postcodes and postcode sectors, postcode districts and postcode areas as at March 2021 in England and Wales (File size 5MB).
  • Postcode Districts - Scotland

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    27 August 2026
    Postcode district boundaries are created and maintained by National Records of Scotland (NRS). Postcode districts are represented by the outward code (first part of a postcode). For example, if...
  • Postcode Sectors - Scotland

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    27 August 2026
    Postcode sector boundaries are created and maintained by National Records of Scotland (NRS). Postcode districts are represented by the outward code (first part of a postcode) plus the first...
  • Postcode to Postcode Sector to Postcode District to Postcode Area (August 2022) to Output Area (2021) Lookup in EW

    Publisher
    Office for National Statistics
    Updated
    11 August 2025
    A lookup between postcodes and postcode sectors, postcode districts, postcode areas and 2021 Census Output Areas as at August 2022 in England and Wales (File size 13MB).
  • Open postcode geo

    Publisher
    Calderdale Metropolitan Borough Council
    Updated
    6 December 2016
    Open Postcode Geo is a postcode dataset and API optimised for geocoding applications. You can use Open Postcode Geo to geocode a dataset, geocode user input, and therefore build a proximity...
  • Postcode Units - Scotland

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    27 August 2026
    Postcode unit boundaries are created and maintained by National Records of Scotland (NRS) for every live small user postcode so that the entire land surface of Scotland is covered by postcode...
  • Census 2022 - Postcode Units

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    10 February 2025
    This dataset contains 2022 frozen Postcode boundaries Postcode unit boundaries are created and maintained by National Records of Scotland (NRS) for every live small user Postcode so that the...
  • Census 2011 - Postcode Units

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    8 July 2026
    Postcode unit boundaries are created and maintained by National Records of Scotland (NRS) for every live small user postcode so that the entire land surface of Scotland is covered by postcode...
  • OS Postcodes Data

    Publisher
    Ordnance Survey
    Updated
    20 December 2024
    The United Kingdom's (England, Scotland, Wales, Northern Ireland) postcodes represented as points and polygons. This data is often used for service delivery and statistical analysis. OS Postcodes...
  • Census 2001 - Postcode Units

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    8 July 2026
    This is the set of postcode boundaries used for 2001 census outputs. The postcode boundaries for census were originally frozen in January 2001 for the purposes of producing census outputs. The...
  • Postcode Units Grid References - Scotland

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    27 August 2026
    Postcode grid references are created and maintained by National Records of Scotland (NRS) for every live small user postcode to accompany the postcode unit boundaries. Postcode grid references are...
  • Postcode Unit Point - Northern Ireland

    Publisher
    Ordnance Survey
    Updated
    25 March 2026
    The Postcode Unit Point Feature Type is a point representation of a postcode, calculated from the average positions of addresses which share a postcode. This feature type is for postcodes within...
  • Postcode Unit Point - Great Britain

    Publisher
    Ordnance Survey
    Updated
    25 March 2026
    The Postcode Unit Point Feature Type is a point representation of a postcode, calculated from the average positions of addresses which share a postcode. This feature type is for postcodes within...
  • Postcode Sectors Grid References - Scotland

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    27 August 2026
    Postcode sector grid references are created and maintained by National Records of Scotland (NRS). Grid references are calculated based on the Royal Mail Delivery Point Count of the postcodes...
  • Postcode Districts Grid References - Scotland

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    27 August 2026
    Postcode district grid references are created and maintained by National Records of Scotland (NRS). Grid references are calculated based on the Royal Mail Delivery Point Count of the postcodes...
  • Census 2011 - Postcode Grid References

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    8 July 2026
    This dataset contains grid references for the 2011 frozen postcode boundaries. Each individual postcode polygon holds a grid reference. Grid references have been assigned by NRS, choosing the...
  • Census 2001 - Postcode Grid References

    Publisher
    Scottish Government SpatialData.gov.scot
    Updated
    8 July 2026
    This dataset contains grid references for the 2001 frozen postcode boundaries. Each individual postcode polygon holds a grid reference. Grid references have been assigned by NRS, choosing the...
  • Water Quality Postcode Look-up

    Publisher
    City of York Council
    Updated
    16 September 2015
    Yorkshire Water's Water Quality Postcode look-up in XML format. Change the final parameter to match the postcode you would like to query (postcode format example = yo16ga for YO01 6GA). *This...
  • Postcode Unit Area - Great Britain

    Publisher
    Ordnance Survey
    Updated
    25 March 2026
    The Postcode Unit Area Feature Type is an area representation of the notional extents of areas containing addresses which share a common postcode unit. Notional extents are designed to enable...
  • Postcode Property Count Northumberland

    Publisher
    Northumberland County Council
    Updated
    26 January 2015
    Postcodes within Northumberland with respective totals for both Residential and Commercial Properties.