DE4 postcode district

Postcodes and sectors

1,023 of the district's 1,605 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 53.12661, -1.56523, which locates the district, not a building.

Companies registered in DE4

Companies House lists 2,133 companies with a registered office in DE4; 284 of them at addresses 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 DE4

• Derbyshire
• East Midlands
• Derbyshire Dales
• Matlock
• Amber Valley
• Darley Dale
• Wirksworth
• Crich
• Cromford
• Matlock Bath
• Tansley
• Middleton
• Whatstandwell
• Bonsall
• Rowsley
• Holloway
• Brassington
• Winster
• Upper Hackney
• Bolehill
• Elton
• Birchover
• Lumsdale
• Beeley

Roads filed under DE4

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.

• Abel Lane
• Acorn Ridge
• Adam Bede Crescent
• Addison Square
• Alabaster Lane
• Alders Field
• Alders Lane
• Alfreton Road
• Allen Hill
• Allen Lane
• All Saints' Road
• Alport Lane
• Alsop Lane
• Alton Rise
• Amberdene
• Amber Hill
• Ameycroft Lane
• Arkwright Close
• Arkwright Street
• Ashley Close
• Ashtree Close
• Asker Lane
• Aston Lane
• Back Lane
• Back School Lane
• Baker's Lane
• Bakewell Road
• Bank Gardens
• Bank Road
• Bankside
• Barley Way
• Barn Close
• Barnsley Lane
• Barnwell Lane
• Barton Hill
• Barton Hill Croft
• Bedehouse Lane
• Beech Court
• Beech Walk
• Bell Lane
• Bennetts Lane
• Bent Lane
• Bentley Bridge Road
• Bentley Close
• Bidston Close
• Birchover Edge
• Birchover Lane
• Birchover Road
• Blackrocks Avenue
• Black Tor Road
• Blagdon Close
• Blakelow Lane
• Blakemere Lane
• Blind Lane
• Bluebell Croft
• Blundestone Lane
• Boam Lane
• Boden Close
• Bolehill Road
• Bonsall Lane

Check an address in DE4

Check an address in DE4

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=DE4" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about DE4

What does a DE4 postcode tell you?

That the address lies in the DE4 district of the DE (Derby) postcode area, and the place OS Open Names most often lists first for its postcodes is Matlock. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,023 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 DE4

• S4510.6 km
• DE4512.3 km
• S4212.7 km
• DE5613.0 km
• DE5513.1 km
• DE514.2 km
• S4014.3 km
• S4914.9 km
• S4116.2 km
• DE618.2 km
• DE7519.0 km
• S3219.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids