Explore B31 3NX in Birmingham on an interactive map. See its location and approximate address-derived boundary, then review the exact-postcode facts and wider-area statistics available below. Editable vector files, printed maps and postcode colouring tools are also available. Census 2021 records 54 residents and 23 households at the exact postcode.
Average sold price£206,2005 exact-postcode transactions
IMD decile6 of 10Containing LSOA · 2025
Vector and Interactive Postcode Maps for B31 3NX
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Core details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
Exact postcode record
Postcode details
Postcode
B31 3NX
Postcode without spaces
B313NX
Status
Active postcode
User type
Small user postcode
Introduced
January 1980
Directory version
2026-06
Latitude
52.3937900
Longitude
-1.9557740
British National Grid
403,106 E, 277,307 N
Containing official geographies
Country
England
Region
West Midlands
Local authority
Birmingham
Output Area (2021)
E00046678
LSOA (2021)
E01009217
MSOA (2021)
E02001957
Electoral ward
E05011152
Westminster constituency
E14001097
The red outline is an approximate convex hull generated from geocoded property locations and offset outwards by about 25 metres; it is not an official postcode boundary.
Ward and Constituency
The postcode is assigned to these official political geographies. Names and election results will be added when the ElectionMaps datasets are connected.
These Census figures are matched directly to the full postcode, rather than inferred from a wider neighbourhood.
Exact postcode · Census 2021
Residents
54
Households
23
Female residents
25
Male residents
29
Residents per household
2.3
Counts are from the postcode-level Census population and household datasets. They apply to the exact postcode. Detailed local demographic profiles will be labelled separately when Output Area data is added.
B31 3NX Vector Map
A detailed vector map covering a 500 metre radius around the postcode.
500 metre radius
Creating the B31 3NX mapThe vector map preview will appear here automatically.
Local Deprivation
Deprivation is published for the postcode's containing Lower Layer Super Output Area, a neighbourhood geography covering more than one postcode.
The search is currently limited to records whose own postcode begins with B31. Distances are approximate straight-line distances, not travel distances.
Companies Registered at B31 3NX
Companies House records whose registered-office address uses this exact postcode.
A registered office can be an accountant, agent or correspondence address. A company listed here does not necessarily trade from this postcode.
Crime in the Local LSOA
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Containing LSOA · E01009217
3 recorded incidents
Birmingham 131E includes B31 3NX and other nearby postcodes.
Crime type
Incidents
Violence and sexual offences
2
Criminal damage and arson
1
Crime figures apply to the whole Birmingham 131E LSOA, not only to B31 3NX. Locations may be anonymised by the source.
B31 3NX Questions
Answers use the geographic scope stated with each dataset above.
Where is the B31 3NX postcode?
B31 3NX is in Birmingham, England.
How many people live in B31 3NX?
The Census 2021 postcode-level dataset records 54 residents at B31 3NX. This is an exact postcode count.
What do the deprivation figures for B31 3NX describe?
The deprivation figures describe the containing Lower Layer Super Output Area, not only the individual postcode.
Are the property prices for the exact postcode?
Yes. The sold-price records shown on this page are Land Registry transactions matched to the full B31 3NX postcode.
Can I buy a vector map of B31 3NX?
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full B31 3NX postcode and its approximate address-derived outline, request a custom map.
Other Postcodes in B31 3
Explore other full postcodes in the same postcode sector.