| Postcode | SA18 2RR | 
|---|---|
| Post Town | Ammanford | 
| Nearest station | Pantyffynnon (2 km) | 
| Bus stops | Garnswllt Square (SW) | 
| Roads in this postcode | |
| Number of UPRNs | 8 View | 
| Known addresses | Penrhiw Farm, Pontardulais Road, Garnswllt Wernoleu, 34 Pontardulais Road, Garnswllt 21 Pontardulais Road, Garnswllt | 
| Main property type | Other | 
| Businesses | 
| Latitude | 51.759164 | |
|---|---|---|
| Longitude | -3.99894 | |
| Easting | 262136 | |
| Northing | 208611 | |
| Grid reference | SN621086 | |
| UTM reference | 30U 431055 5734724 | |
| what3words | standards.being.lost | |
| FixPhrase | crinkly lunacy spoiler tranquil | |
| Plus code | 9C3RQ252+MC | |
| Altitude | 73 metres (239 feet) | |
| Sunrise (today) | 7:09 | |
| Sunset (today) | 16:52 | |
| Distance away | ||
| Distance to sea | 7.3 KMs (4.5 miles) | 
| Parish | Mawr | W04000581 | 
|---|---|---|
| Ward | Pontarddulais | W05001062 | 
| Unitary Authority | Swansea | W06000011 | 
| County | West Glamorgan | W11000008 | 
| Constituency (2024) | Gower | W07000097 | 
| MP | Tonia Antoniazzi | Labour | 
| Police force | South Wales | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | Swansea | |
| NUTS/ITL 2 | Mid and South West Wales | |
| NUTS/ITL 1 | Wales | |
| Country | Wales | W92000004 | 
| Date introduced | January 1980 | 
|---|---|
| Last updated | September 2025 | 
| User type | Small (addresses receive less than 25 items of mail per day) | 
| Quality | Within the building of the matched address closest to the postcode mean | 
| Population (2011) | 18 | |
|---|---|---|
| Households (2011) | 7 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Smaller rural: Further from a major town or city | |
| Rural/urban (2011) | Rural hamlet and isolated dwellings | |
| Census output area (2021) | W00004306 | |
| Census output area (2011) | 1B3 | |
| Lower layer super output area (2021) | Swansea 002F | W01000803 | 
| Lower layer super output area (2011) | Swansea 002F | W01000803 | 
| Middle layer super output area (2021) | Clydach & Mawr | W02000169 | 
| Middle layer super output area (2011) | Clydach & Mawr | W02000169 | 
| Travel to work area | Swansea | W22000032 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Wernoleu, 34 Pontardulais Road, Garnswllt | Other (freehold) | Oct 2020 | £360,000 | 
| 21 Pontardulais Road, Garnswllt | Other (freehold) | Nov 2016 | £210,000 | 
| Penrhiw Farm, Pontardulais Road, Garnswllt | Detached (freehold) | Jul 2002 | £185,000 | 
| Detached (freehold) | Oct 2000 | £117,000 |