YO1 postcode district

Postcodes and sectors

439 of the district's 2,330 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 53.95862, -1.08262, which locates the district, not a building.

Companies registered in YO1

Companies House lists 1,515 companies with a registered office in YO1; 232 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 YO1

• York
• Yorkshire and the Humber

Roads filed under YO1

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.

• Albion Street
• Aldwark
• All Saints' Lane
• Ancroft Close
• Back Swinegate
• Baile Hill Terrace
• Barker Lane
• Bar Lane
• Barleycorn Yard
• Bartle Garth
• Bishophill Junior
• Bishophill Senior
• Black Horse Passage
• Blake Street
• Bridge Street
• Buckingham Street
• Carmelite Street
• Carr's Lane
• Castlegate
• Castle Walk
• Chapter House Street
• Church Lane
• Church Street
• Clifford Street
• College Street
• Colliergate
• Coney Street
• Coppergate
• Coppergate Walk
• Cromwell Road
• Cumberland Street
• Davygate
• Deangate
• Dennis Street
• Dewsbury Court
• Dewsbury Terrace
• Dixon's Yard
• Dixon Lane
• Duncombe Place
• Dundas Street
• Fairfax Street
• Falkland Street
• Feasegate
• Fetter Lane
• Finkle Street
• Fossgate
• Foss View
• Friargate
• Garden Place
• George Hudson Street
• George Street
• Goodramgate
• Granary Court
• Grape Lane
• Hampden Street
• High Ousegate
• High Petergate
• Hungate
• Hunt Court
• Hurst's Yard

Check an address in YO1

Check an address in YO1

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=YO1" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about YO1

What does a YO1 postcode tell you?

That the address lies in the YO1 district of the YO (York) postcode area, and the place OS Open Names most often lists first for its postcodes is York. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 439 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 YO1

• YO900.5 km
• YO311.7 km
• YO101.9 km
• YO242.7 km
• YO303.9 km
• YO234.7 km
• YO326.2 km
• YO266.7 km
• YO197.1 km
• YO4112.0 km
• LS2415.0 km
• YO6017.0 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids