This page brings together the map and available local information for CF3 0JN in Wales. The boundary shown is an approximation created from address points, and each data section explains whether its figures apply to the full postcode or a wider statistical area. Census 2021 records 44 residents and 19 households at the exact postcode.
High-quality vector file formats. Instant download. Next-day prints.
Create a Custom MapChoose the type of postcode map that matches the level of detail and editing control you need.
Download layered UK postcode area, district and sector maps in formats including Adobe Illustrator, PDF and SVG. Individual boundaries can be coloured and edited for reports, presentations and print.
Browse Vector Map Files
Create sales territories, delivery zones or heat maps without specialist mapping software. Try the postcode sector map tool, then save and export maps with full access.
Try the Sector Map ToolReady-made vector files cover postcode areas, districts and sectors. For a map focused on the full CF3 0JN postcode or its approximate address-derived outline, ask us about custom digital and printed options.
Create a Custom MapCore details from the ONS Postcode Directory. Geography codes identify the official areas containing this postcode.
| Postcode | CF3 0JN |
| Postcode without spaces | CF30JN |
| Status | Active postcode |
| User type | Small user postcode |
| Introduced | July 1990 |
| Directory version | 2026-06 |
| Latitude | 51.5208300 |
| Longitude | -3.1007760 |
| British National Grid | 323,723 E, 180,787 N |
| Country | Wales |
| Output Area (2021) | W00009669 |
| LSOA (2021) | W01001884 |
| MSOA (2021) | W02000379 |
| Electoral ward | W05001296 |
| 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 | 44 |
| Households | 19 |
| Female residents | 19 |
| Male residents | 25 |
| Residents per household | 2.3 |
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
Heol Maes Eirwg, Trowbridge, Cardiff, CF3 0JZ
B
CRICKHOWELL ROAD, ST MELLONS, CARDIFF, CF3 0EF
Welsh establishment
Ferntree Drive, Trowbridge, Cardiff, CF3 0AA
Welsh establishment
Willowbrook Drive, Trowbridge, Cardiff, CF3 0AY
Welsh establishment
Sandbrook Road, Trowbridge, Cardiff, CF3 0ST
Welsh establishment
Glan-Y-Mor Road, Trowbridge, Cardiff, CF3 1RQ
B
5 STRATHY ROAD, ST. MELLONS, CARDIFF, CF3 0SH
Welsh establishment
Cemaes Crescent, Trowbridge, Cardiff, CF3 1TA
Welsh establishment
Brynbala Way, Trowbridge, Cardiff (Caerdydd), CF3 1SX
Welsh establishment
Newport Road, Rumney, Cardiff, CF3 1XQ
Welsh establishment
Newport Road, College Green, Old St Mellon's, Cardiff, CF3 5YX
Welsh establishment
Dunster Road, Llanrumney, Cardiff, CF3 5TP
Companies House records whose registered-office address uses this exact postcode.
Private Limited Company
Incorporated 19 January 2026
33160 - Repair and maintenance of aircraft and spacecraft
Police.uk street-level incidents recorded across the postcode's containing LSOA in May 2026.
Cardiff 013D includes CF3 0JN and other nearby postcodes.
| Crime type | Incidents |
|---|---|
| Violence and sexual offences | 5 |
| Vehicle crime | 3 |
| Public order | 2 |
| Criminal damage and arson | 1 |
Answers use the geographic scope stated with each dataset above.
CF3 0JN is in Wales.
The Census 2021 postcode-level dataset records 44 residents at CF3 0JN. 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 0JN postcode and its approximate address-derived outline, request a custom map.
Explore other full postcodes in the same postcode sector.