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MapIt Voronoi Postcode Boundaries

Overview
API Documentation

Areas touching TW3 3SL

TW4

ID 2770, Approximate postcode district (APD), United Kingdom
TW4 5

ID 12933, Approximate postcode sector (APS), United Kingdom
TW3 3SJ

ID 1585190, Approximate postcode unit (APU), United Kingdom
TW4 5JX

ID 1585448, Approximate postcode unit (APU), United Kingdom
TW4 5LF

ID 1585455, Approximate postcode unit (APU), United Kingdom

MapIt: Voronoi Postcode Boundaries

Point-to-approximate-postcode-boundary mapping. Input a postcode or geographical location and MapIt returns the approximate postcode boundaries (at the unit, sector, district and area level) that contain that point.

The data in this instance of MapIt is derived from NSUL (published by the ONS) and Boundary-Line (published by Ordnance Survey), which are both licensed under the Open Government License version 3. You must abide by the terms of these licenses and include the following copyright notices:

Contains OS data © Crown copyright and database right 2020
Contains Royal Mail data © Royal Mail copyright and database right 2020
Source: Office for National Statistics licensed under the Open Government Licence v.3.0

These boundaries are known to be approximate - they are provided in case they are of interest and use, but are only rough representations of the postcode boundaries due to limitations of the open address data currently available. In other words, there are no guarantees about the quality of this data or its suitability for any use; use it at your own risk.

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mySociety is a registered charity in England and Wales (1076346) and a limited company (03277032). We provide commercial services through our wholly owned subsidiary SocietyWorks Ltd (05798215).

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Areas touching TW3 3SL

TW4

TW4 5

TW3 3SJ

TW4 5JX

TW4 5LF