S18 postcode district

Postcodes and sectors

594 of the district's 1,388 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 53.29950, -1.47462, which locates the district, not a building.

Companies registered in S18

Companies House lists 1,145 companies with a registered office in S18; 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 S18

• North East Derbyshire
• Derbyshire
• East Midlands
• Dronfield
• Unstone Green
• Apperknowle
• Common Side
• Unstone
• Holmesfield
• Millthorpe
• Barlow
• Hundall
• Mickley
• Peakley Hill
• Summerley
• Cartledge
• Cowley
• Wilday Green
• Newgate
• Crowhole
• Lydgate
• Horsleygate
• Unthank

Roads filed under S18

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.

• Alexandra Road
• Alice Way
• Allestree Drive
• Alma Crescent
• Alport Rise
• Alton Close
• Anglesey Road
• Appletree Drive
• Appletree Walk
• Arundel Close
• Ashford Close
• Ashford Road
• Ash Lane
• Aston Close
• Avon Close
• Back Lane
• Back Road
• Balmoral Crescent
• Barley Mews
• Barlow Grange Lane
• Barlow Lees Lane
• Barlow Road
• Barlow View
• Barnard Avenue
• Barnes Avenue
• Barnes Lane
• Barrack Road
• Barrack View
• Beech Way
• Beechwood Road
• Beeston Close
• Belton Close
• Bent's Lane
• Bents Crescent
• Birchen Close
• Birches Fold
• Birches Lane
• Birch Holt Grove
• Birch House Way
• Birchitt View
• Bowness Close
• Bowshaw
• Bradley Lane
• Bradwell Close
• Brierley Road
• Brook Vale Close
• Brookview Court
• Brown Lane
• Bubnell Road
• Buckingham Close
• Buckleather Lane
• Burbage Close
• Burnaston Close
• Burns Drive
• Buttermere Drive
• Byron Close
• Caernarvon Road
• Caldey Road
• Callywhite Lane
• Carr Lane

Check an address in S18

Check an address in S18

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=S18" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about S18

What does an S18 postcode tell you?

That the address lies in the S18 district of the S (Sheffield) postcode area, and the place OS Open Names most often lists first for its postcodes is Dronfield. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 594 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 S18

• S174.4 km
• S84.5 km
• S145.6 km
• S76.3 km
• S416.5 km
• S127.1 km
• S117.2 km
• S407.5 km
• S497.6 km
• S28.0 km
• S19.0 km
• S209.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids