DT11 1 postcode sector in the DT11 district
DT11 1 is a sector of the DT11 district: every postcode that starts DT11 1. It has 7 postcodes in use, 7 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.
Not sure what a sector is? UK postcode format explained.
Every postcode in the DT11 1 sector, and which are new since 2020
- New since 2020: 5
- In use before 2020: 2
Of the 7 postcodes in the DT11 1 sector that ONS places, 5 are new since 2020 and 2 were in use before 2020.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.
Postcodes in DT11 1
Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.
Other sectors in DT11
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Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
Licence: Open Government Licence v3.0.
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