SS9 postcode district

Postcodes and sectors

1,052 of the district's 1,561 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 51.55485, 0.65154, which locates the district, not a building.

Companies registered in SS9

Companies House lists 9,159 companies with a registered office in SS9; 6,392 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 SS9

• Eastern
• Southend-on-Sea
• Leigh-on-Sea
• Essex
• Rochford
• Castle Point

Roads filed under SS9

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.

• Abbotts Close
• Aberdeen Gardens
• Adalia Crescent
• Adalia Way
• Agnes Avenue
• Airborne Close
• Alan Close
• Alan Grove
• Aldrin Way
• Alexandra Road
• Alley Dock
• Anders Fall
• Anstey Close
• Applerow
• Ashcombe Close
• Ashleigh Drive
• Avenue Road
• Avondale Drive
• Bailey Road
• Barnard Road
• Beach Avenue
• Belfairs Close
• Belfairs Drive
• Belfairs Park Close
• Belfairs Park Drive
• Belgrave Close
• Belgrave Road
• Bellhouse Crescent
• Bellhouse Lane
• Bellhouse Road
• Bellsands Close
• Belton Bridge
• Belton Gardens
• Belton Way East
• Belton Way West
• Benvenue Avenue
• Berkeley Gardens
• Berkshire Close
• Billet Lane
• Birche Close
• Birchwood Drive
• Blenheim Chase
• Blenheim Crescent
• Blenheim Mews
• Blenheim Park Close
• Bohemia Chase
• Boleyn Close
• Bolney Drive
• Bonchurch Avenue
• Borman Close
• Bosworth Road
• Boundary Road
• Bowman Avenue
• Boyce Hill Close
• Bradford Bury
• Braemar Crescent
• Bramble Close
• Bramble Road
• Briarwood Close
• Briarwood Drive

Check an address in SS9

Check an address in SS9

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

curl "https://spaw.co/api/v1/address/streets?country=GB&postal_code=SS9" \
  -H "Authorization: Bearer $SPAW_KEY"

Common questions about SS9

What does an SS9 postcode tell you?

That the address lies in the SS9 district of the SS (Southend-on-Sea) postcode area, and the place OS Open Names most often lists first for its postcodes is Leigh-on-Sea. The district alone does not place a street: the inward half of the full postcode narrows the address to one of the district's 1,052 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 SS9

• SS02.7 km
• SS994.4 km
• SS24.5 km
• SS64.9 km
• SS75.2 km
• SS85.6 km
• SS15.8 km
• SS45.9 km
• SS55.9 km
• SS39.6 km
• SS1310.0 km
• SS1110.5 km
• Every district
• How a British address is written
• Check any address

distance between the districts' centroids