DL6 postcode district

Postcodes and sectors

686 of the district's 810 postcodes are live in the ONS Postcode Directory of August 2026. A postcode directory says whether a code is in use, never who is there. The live postcodes centre on 54.37053, -1.39258, which locates the district, not a building.

Companies registered in DL6

Companies House lists 876 companies with a registered office in DL6; none of them at an address shared by 25 or more companies (1 October 2026 snapshot). 25 is the count at which the address lookup reports a company cluster.

Places OS Open Names lists for DL6

• North Yorkshire
• Yorkshire and the Humber
• Northallerton
• Brompton
• Osmotherley
• Swainby
• Ingleby Arncliffe
• Great Smeaton
• Appleton Wiske
• East Harlsey
• Thornton-le-Beans
• Potto
• Hornby
• Welbury
• West Rounton
• East Rounton
• Little Smeaton
• Ellerbeck
• West Harlsey
• Low Entercommon
• High Entercommon
• Oaktree Hill
• Lovesome Hill
• Deighton

Roads filed under DL6

Named roads first, then numbered ones. A road is filed under one district even where it runs through several, so a street missing here may be listed under a neighbouring district — which is why the address lookup never calls a British street absent. Great Britain has no open register of buildings, so a listed road never means a building on it exists.

• Alvertune Way
• Ash Grove
• Ashlands Close
• Ashlands Court
• Ashlands Road
• Ash Ridge
• Aumale Road
• Back Lane
• Badger Lane
• Bad Lane
• Baker Street
• Bankhead Close
• Bankhead Road
• Banks Road
• Barkers Court
• Beech Grove
• Bestmire Lane
• Binks Close
• Black Horse Lane
• Blind Lane
• Boghole Bank
• Borrowby Avenue
• Bradley Avenue
• Bramblefields
• Breakspeare Garth
• Brickside Way
• Bridge End
• Brierley Place
• Brockholme Lane
• Brompton Lane
• Brompton Road
• Bruntcliffe Lane
• Bruntone Close
• Bryden Close
• Bullamoor Close
• Bullamoor Road
• Burnthouse Bank
• Butcher Lane
• Byland Avenue
• Byland Place
• Byram Close
• Byram Court
• Carmelite Close
• Carr Bridge Lane
• Carrol Close
• Castle Bank
• Central Drive
• Chester Lane
• Cheviot Close
• Church Garth
• Church Lane
• Church View
• Clack Lane
• Claver Close
• Clay Bank
• Coalmire Lane
• Cockpit Hill
• Colgate Lane
• Colstan Road
• Cooks Close

Check an address in DL6

Check an address in DL6

The same road list through the API, from the outward code alone:

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=DL6" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about DL6

What does a DL6 postcode tell you?

That the address lies in the DL6 district of the DL (Darlington) postcode area, and the place OS Open Names most often lists first for its postcodes is Northallerton. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 686 live postcodes.

Where the counts come from

• ons-postcode-directory · version 2026-08 · Contains ONS, OS and Royal Mail data © Crown copyright and database right 2026, Open Government Licence v3.0. Northern Ireland postcodes are excluded: their reuse needs a Land & Property Services licence.
• os-open-names · version 2026-11-01 · Contains OS data © Crown copyright and database right 2026, Open Government Licence v3.0.
• uk-companies-house · version 2026-10-01 · Companies House free company data product, Open Government Licence v3.0

What each figure means, and what a district page never says, is set out in Reading a British postcode district page; the glossary defines a postcode district, a postcode area, a postcode directory and a street register.

Data synced on 2026-11-01: the newest version among the datasets listed above.

Districts nearest DL6

• DL77.1 km
• TS1513.5 km
• YO716.5 km
• TS1617.0 km
• TS918.1 km
• TS1719.2 km
• TS819.7 km
• DL1019.9 km
• DL120.1 km
• DL920.4 km
• DL321.4 km
• TS1821.6 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids