Travel to Work Areas (TTWA) Postcodes

This instant download contains circa. 1,791,296 postcodes & Travel to Work Areas/Zones (TTWA).   TTWA boundaries are non-overlapping and cover the whole of the UK. TTWAs have been assigned to regions based on where the highest proportion of land area for the TTWA falls. TTWAs can also cross national boundaries, although no account is taken of commuting between Northern Ireland and the Republic of Ireland.  Postcodes within the file are updated quarterly to ensure they remain current, and our clients receive an inclusive complete refresh every three months as part of the service, for no additional fee.

TTWAs are used in labour market analysis and reflect reasonably self-contained zones in which the bulk of the resident population also work. The 228 current TTWAs were defined in 2015 using 2011 Census information on home and work addresses and are built from 2011 Census LSOAs in England and Wales, data zones in Scotland, and SOAs in Northern Ireland. The previous (2007) areas were based on the same statistical geographies from the 2001 Census.

Fields presented in the files:

• Postcode e.g. “AB10 1YZ”
• Postcode Sector, e.g. “AB10 1”
• Postcode District e.g. “AB10”
• Postcode Area e.g. “AB”
• TTWA Code e.g. “S22000047”
• TTWA Name e.g. “Aberdeen”
• Date Postcode Introduced e.g. “201106”
• Date Postcode Retired (if applicable)

Coverage

The 228 current TTWAs were defined in 2015 using 2011 Census information on home and work addresses and are built from 2011 Census LSOAs in England and Wales, data zones in Scotland, and SOAs in Northern Ireland.

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.

Updates

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

Guarantees

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.