Explore CF3 4JB in Wales 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 2 residents and 2 households at the exact postcode.
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Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | CF3 4JB |
| Postcode without spaces | CF34JB |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | June 1999 |
| Directory version | 2026-06 |
| Latitude | 51.5168600 |
| Longitude | -3.1317680 |
| British National Grid | 321,566 E, 180,379 N |
| Country | Wales |
| Output Area (2021) | W00009303 |
| LSOA (2021) | W01001805 |
| MSOA (2021) | W02000381 |
| Electoral ward | W05001285 |
| Westminster constituency | W07000089 |
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.
| Residents | 2 |
| Households | 2 |
| Female residents | 2 |
| Male residents | 0 |
| Residents per household | 1.0 |
A detailed vector map covering a 500 metre radius around the postcode.
Open schools and active GP practices in the CF3 postcode district, ordered by straight-line distance where coordinates are available.
Welsh establishment
Blagdon Close, Llanrumney, Cardiff, CF3 4HF
Welsh establishment
Ridgeway Road, Llanrumney, Cardiff, CF3 4AB
Welsh establishment
Eastern Community Campus, Trowbridge Road, Trowbridge, Cardiff, CF3 1XZ
Welsh establishment
Browning Close, Llanrumney, Cardiff, CF3 5NJ
Welsh establishment
Llanstephan Road, Rumney, Cardiff, CF3 3JG
Welsh establishment
Newport Road, Rumney, Cardiff, CF3 1XQ
B
BARMOUTH ROAD, RUMNEY, CARDIFF, CF3 3LG
Welsh establishment
Dunster Road, Llanrumney, Cardiff, CF3 5TP
Welsh establishment
Shaw Close, Llanrumney, Cardiff, CF3 5NX
Welsh establishment
Barmouth Road, Rumney, Cardiff (Caerdydd), CF3 3HD
Welsh establishment
Brynbala Way, Trowbridge, Cardiff (Caerdydd), CF3 1SX
Welsh establishment
Glan-Y-Mor Road, Trowbridge, Cardiff, CF3 1RQ
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 24 November 2025
77110 - Renting and leasing of cars and light motor vehicles
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Cardiff 015C includes CF3 4JB and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Shoplifting | 17 |
| Violence and sexual offences | 6 |
| Anti-social behaviour | 3 |
| Other crime | 2 |
| Burglary | 1 |
| Drugs | 1 |
| Other theft | 1 |
| Public order | 1 |
Answers use the geographic scope stated with each dataset above.
CF3 4JB is in Wales.
The Census 2021 postcode-level dataset records 2 residents at CF3 4JB. This is an exact postcode count.
Vector Maps supplies editable UK postcode area, district and sector map files. For a vector or printed map focused on the full CF3 4JB postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.