| Postcode | SA31 2LL | 
|---|---|
| Post Town | Carmarthen | 
| Nearest station | Carmarthen (1 km) | 
| Bus stops | Elder Grove (E) Brynmeurig Turn (SE) Bron-y-dre (SW) Tre-Gynnwr (NE) Elder Grove (S) Tregynwr Junction (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 10 View | 
| Known addresses | Aelybryn, Mount Pleasant, Pensarn Green Acres, Mount Pleasant, Pensarn West Winds, Mount Pleasant, Pensarn | 
| Main property type | Detached | 
| Businesses | 
                        No businesses found
                     | 
| Latitude | 51.844282 | |
|---|---|---|
| Longitude | -4.295632 | |
| Easting | 241959 | |
| Northing | 218679 | |
| Grid reference | SN419186 | |
| UTM reference | 30U 410747 5744512 | |
| what3words | line.drew.nation | |
| FixPhrase | crisped lumpiness sliver twister | |
| Plus code | 9C3QRPV3+PP | |
| Altitude | 67 metres (220 feet) | |
| Sunrise (today) | 7:10 | |
| Sunset (today) | 16:53 | |
| Distance away | ||
| Distance to sea | 3.5 KMs (2.2 miles) | 
| Parish | Llangunnor | W04000531 | 
|---|---|---|
| Ward | Llangunnor | W05001210 | 
| Unitary Authority | Carmarthenshire | W06000010 | 
| County | Dyfed | W11000002 | 
| Constituency (2024) | Caerfyrddin | W07000087 | 
| MP | Ms Ann Davies | Plaid Cymru | 
| Police force | Dyfed-Powys | |
| Water company | Dwr Cymru Welsh Water | |
| NUTS/ITL 3 | South West Wales | |
| 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) | 20 | |
|---|---|---|
| Households (2011) | 8 | |
| Index of Multiple Deprivation (2019) | Most deprivedLeast deprived | |
| Average household income (2020) | Lowest (£22,200)
                        Highest (£108,100)
                       | |
| Rural/urban (2021) | Urban: Further from a major town or city | |
| Rural/urban (2011) | Urban city and town in a sparse setting | |
| Built up area (2024) | Carmarthen | W45000937 | 
| Census output area (2021) | W00003726 | |
| Census output area (2011) | 1A3 | |
| Lower layer super output area (2021) | Carmarthenshire 008D | W01000694 | 
| Lower layer super output area (2011) | Carmarthenshire 008D | W01000694 | 
| Middle layer super output area (2021) | Carmarthen South & Llangynnwr | W02000149 | 
| Middle layer super output area (2011) | Carmarthen South & Llangynnwr | W02000149 | 
| Travel to work area | Llanelli | W22000028 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Green Acres, Mount Pleasant, Pensarn | Detached (freehold) | Apr 2008 | £265,000 | 
| Aelybryn, Mount Pleasant, Pensarn | Detached (freehold) | Apr 2000 | £65,000 | 
| West Winds, Mount Pleasant, Pensarn | Detached (freehold) | Jun 1995 | £89,000 |