| Postcode | SA20 0PB | 
|---|---|
| Post Town | Llandovery | 
| Nearest station | Cynghordy (5 km) | 
| Bus stops | No nearby bus stops | 
| Number of UPRNs | 13 View | 
| Known addresses | Brynbach, Rhandirmwyn Cartref, Rhandirmwyn Maes Y Delyn, Rhandirmwyn Nant Y Glo, Rhandirmwyn Tegfan, Rhandirmwyn The Barn, Frongoch, Rhandirmwyn | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 52.086073 | |
|---|---|---|
| Longitude | -3.789376 | |
| Easting | 277492 | |
| Northing | 244591 | |
| Grid reference | SN774445 | |
| UTM reference | 30U 445913 5770905 | |
| what3words | trouble.trending.wished | |
| FixPhrase | crisply lunchbox stylishly thesaurus | |
| Plus code | 9C4R36P6+C6 | |
| Altitude | 139 metres (455 feet) | |
| Sunrise (today) | 7:09 | |
| Sunset (today) | 16:50 | |
| Distance away | ||
| Distance to sea | 35.4 KMs (22 miles) | 
| Parish | Llanfair-ar-y-bryn | W04000521 | 
|---|---|---|
| Ward | Llandovery | W05001203 | 
| 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) | 17 | |
|---|---|---|
| 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 in a sparse setting | |
| Census output area (2021) | W00003656 | |
| Census output area (2011) | 1B3 | |
| Lower layer super output area (2021) | Carmarthenshire 002C | W01000678 | 
| Lower layer super output area (2011) | Carmarthenshire 002C | W01000678 | 
| Middle layer super output area (2021) | Llandovery, Cil-y-cwm & Cynwyl Gaeo | W02000143 | 
| Middle layer super output area (2011) | Llandovery, Cil-y-cwm & Cynwyl Gaeo | W02000143 | 
| Travel to work area | Llanelli | W22000028 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Brynbach, Rhandirmwyn | Detached (freehold) | Jan 2025 | £315,000 | 
| Detached (freehold) | Nov 2020 | £240,000 | |
| Maes Y Delyn, Rhandirmwyn | Semi-detached (freehold) | Sep 2021 | £285,000 | 
| Cartref, Rhandirmwyn | Detached (freehold) | Jul 2021 | £490,000 | 
| Nant Y Glo, Rhandirmwyn | Other (freehold) | Mar 2020 | £390,000 | 
| Tegfan, Rhandirmwyn | Detached (freehold) | Jun 2010 | £145,000 | 
| The Barn, Frongoch, Rhandirmwyn | Detached (freehold) | Apr 2000 | £170,000 |