| Postcode | CF3 9XT | 
|---|---|
| Post Town | Cardiff | 
| Nearest station | Risca and Pontymister (3 km) | 
| Bus stops | Lower Machen (NW) Lower Machen (SE) | 
| Known addresses | 
                          No addresses found
                       | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.581869 | |
|---|---|---|
| Longitude | -3.124231 | |
| Easting | 322199 | |
| Northing | 187600 | |
| Grid reference | ST221876 | |
| UTM reference | 30U 491392 5714541 | |
| what3words | fully.retraced.probable | |
| FixPhrase | cringing lure stride vowel | |
| Plus code | 9C3RHVJG+P8 | |
| Altitude | 50 metres (163 feet) | |
| Sunrise (today) | 7:05 | |
| Sunset (today) | 16:49 | |
| Distance away | ||
| Distance to sea | 9.1 KMs (5.7 miles) | 
| Parish | Rudry | W04000748 | 
|---|---|---|
| Ward | Machen and Rudry | W05001661 | 
| Unitary Authority | Caerphilly | W06000018 | 
| County | Gwent | W11000003 | 
| Constituency (2024) | Caerphilly | W07000088 | 
| MP | Chris Evans | Labour | 
| Police force | Gwent | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Gwent Valleys | |
| 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 | |
| Census output area (2021) | W00007425 | |
| Census output area (2011) | 1A2 | |
| Lower layer super output area (2021) | Caerphilly 021D | W01001419 | 
| Lower layer super output area (2011) | Caerphilly 021D | W01001419 | 
| Middle layer super output area (2021) | Machen | W02000310 | 
| Middle layer super output area (2011) | Machen | W02000310 | 
| Travel to work area | Cardiff | W22000024 | 
| Average property price in Cardiff | £221,509 | 
|---|---|
| Annual change | 2.2% |