UK Postcode Sector Boundaries

This instant download shows geographic polygons by Postcode Sectors, Districts and Areas in the UK.  The product  requires the use of a Geographic Information System (GIS) such as MapInfo, Arc Info, or Google Maps to view the boundaries. File formats available include:  DXF, MID, MIF, SHA, SHA-BNG, JSON and KML.  This boundaries file is updated every three months to provide the most up to date and cost-effective postcode boundary file currently available.

Postcode Sector Boundary Applications

Postcode boundaries are widely used across all business sectors for planning and managing geographic assets and operational structures. Common functions where postcode boundaries can benefit your business are:

  • Sales territory design and management
  • Franchise and dealer area planning
  • Targeting direct marketing activity
  • Planning distribution routes
  • Analysing retail networks
  • Planning door drop campaigns
  • Mapping customer distributions
  • Demographic analysis
  • Insurance risk analysis
  • and many more…

Benefits of Postcode Planning

  • Increase revenues though more efficient time management and reduce operational overheads to increase profits.
  • Increase sales conversions and profits through improved targeting.
  • Identifying hidden opportunities by comparing retail networks or sales areas to target market concentrations.
  • Reducing financial exposure through improved risk assessment.
  • Optimise franchise and dealer networks to better serve your target audience.
  • Minimise delivery costs to customers through efficient scheduling and routing.

Postcode Boundary Accuracy

The Boundaries have been created from Ordnance Survey location data which have a Positional Quality Indicator (PQI) indicating that the contributing grid references are “Within the building of the matched address closest to the postcode’s mean, determined automatically by Ordnance Survey.”  The result is a set of boundaries that will fall correctly between the contributing Postcode locations. It should be noted that as these boundaries are created programmatically so they will not accurately follow natural or man-made bounding features such as rivers, canals or road networks.  An example of the accuracy of the data is shown in the images on the postcode boundaries product specification document.


These Postcode Sector, District and Area boundaries cover the United Kingdom (England, Scotland, Wales and Northern Ireland).


British National Grid (OSGB). Latitude/ Longitude (WGS84) projection is available upon request.

Supply Format

Supplied within a Zip compressed file. File formats available include:  DXF, MID, MIF, SHA, SHA-BNG, JSON and KML.


For use in all GIS or mapping systems, such as MapInfo, Arc Info, or Google Maps.


Instant Download: A link to the data, is emailed upon payment.


Downloads are supplied as licensed products, allowing unlimited reuse of the file content for 12 months.    You may cancel the licence at any time without penalty.  The licence fee you pay covers the considerable effort taken to compile and update the product, including our manual correction and verification, and finally verification against the latest Royal Mail and Ordnance Survey databases. On or before the 11th month, we will write to you, offering to extend the licence for a further 12 months or to let it expire.


As part of the fee paid, we automatically send you a full product file refresher every 3 months for no additional fee.  This will ensure the postcodes remain current and are correctly aligned.


We have developed internal quality processes to help ensure the data you purchase is fit for purpose.  If you are for some reason not satisfied with the data or our work, we offer a no quibble refund in exchange for your feedback.

Buy now…

£179.00£2,190.00 / year

Instant Download: A link to the data, is emailed upon payment.  We will also email a link to the updated version of this file every three months (included in the fee you pay).

Useful Information


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