| Postcode | CF3 8UX | 
|---|---|
| Post Town | Cardiff | 
| Nearest station | Pye Corner (5 km) | 
| Bus stops | Coach & Horses (NE) Post Office (SW) Marshfield Primary School (NW) Marshfield Primary School (S) | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.544533 | |
|---|---|---|
| Longitude | -3.078606 | |
| Easting | 325299 | |
| Northing | 183400 | |
| Grid reference | ST252834 | |
| UTM reference | 30U 494549 5710384 | |
| what3words | cabbies.resorting.configure | |
| FixPhrase | cringing luridness slogan unglue | |
| Plus code | 9C3RGWVC+RH | |
| Altitude | 28 metres (92 feet) | |
| Sunrise (today) | 7:05 | |
| Sunset (today) | 16:48 | |
| Distance away | ||
| Distance to sea | 3.6 KMs (2.3 miles) | 
| Parish | Marshfield | W04000823 | 
|---|---|---|
| Ward | Tredegar Park and Marshfield | W05001646 | 
| Unitary Authority | Newport | W06000022 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Newport West and Islwyn | W07000105 | 
| MP | Ruth Jones | Labour | 
| Police force | Gwent | |
| NUTS/ITL 3 | Monmouthshire and Newport | |
| NUTS/ITL 2 | South East Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1980 | 
|---|---|
| Date usage ended | June 1999 | 
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Postcode terminated prior to Gridlink initiative - last known ONS postcode grid reference | 
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
|---|---|---|
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Smaller rural: Nearer to a major town or city | |
| Rural/urban (2011) | Rural village | |
| Built up area (2024) | Castleton (Newport) | W45001194 | 
| Census output area (2021) | W00008603 | |
| Census output area (2011) | 5B1 | |
| Lower layer super output area (2021) | Newport 020C | W01001657 | 
| Lower layer super output area (2011) | Newport 020C | W01001657 | 
| Middle layer super output area (2021) | Marshfield | W02000366 | 
| Middle layer super output area (2011) | Marshfield | W02000366 | 
| Travel to work area | Cardiff | W22000024 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% |