| Postcode | SA31 1TY | 
|---|---|
| Post Town | Carmarthen | 
| Nearest station | Carmarthen (2 km) | 
| Bus stops | Capel Elim (NW) Trevaughan (S) Trevaughan (NW) | 
| Roads in this postcode | |
| Number of UPRNs | 24 View | 
| Known addresses | Llwynteg Cottage, Ffynnonddrain Parc-Y-Berllan, Ffynnonddrain Pentrecelyn, Ffynnonddrain Rose Cottage, Ffynnonddrain Spring View, Ffynnonddrain Ty Isaf, Ffynnonddrain 4 Ffynnonddrain | 
| Main property type | Detached | 
| Businesses | 
| Latitude | 51.871295 | |
|---|---|---|
| Longitude | -4.320877 | |
| Easting | 240316 | |
| Northing | 221738 | |
| Grid reference | SN403217 | |
| UTM reference | 30U 409063 5747548 | |
| what3words | owner.flute.parade | |
| FixPhrase | crisped luminous steadier unbutton | |
| Plus code | 9C3QVMCH+GJ | |
| Altitude | 46 metres (151 feet) | |
| Sunrise (today) | 7:11 | |
| Sunset (today) | 16:53 | |
| Distance away | ||
| Distance to sea | 6.1 KMs (3.8 miles) | 
| Parish | Carmarthen | W04000494 | 
|---|---|---|
| Ward | Carmarthen Town North and South | W05001183 | 
| 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) | 29 | |
|---|---|---|
| Households (2011) | 14 | |
| 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 | |
| Census output area (2021) | W00003426 | |
| Census output area (2011) | 5B3 | |
| Lower layer super output area (2021) | Carmarthenshire 007A | W01000637 | 
| Lower layer super output area (2011) | Carmarthenshire 007A | W01000637 | 
| Middle layer super output area (2021) | Carmarthen North | W02000148 | 
| Middle layer super output area (2011) | Carmarthen North | W02000148 | 
| Travel to work area | Llanelli | W22000028 | 
| Average property price in Swansea | £199,131 | 
|---|---|
| Annual change | 2.4% | 
| Address | Type | Date | Price | 
|---|---|---|---|
| Spring View, Ffynnonddrain | Detached (freehold) | Aug 2023 | £275,000 | 
| Ty Isaf, Ffynnonddrain | Semi-detached (freehold) | Aug 2021 | £110,000 | 
| Pentrecelyn, Ffynnonddrain | Other (freehold) | Jun 2018 | £229,000 | 
| Llwynteg Cottage, Ffynnonddrain | Semi-detached (freehold) | May 2006 | £132,500 | 
| Semi-detached (freehold) | Mar 2000 | £17,500 | |
| Parc-Y-Berllan, Ffynnonddrain | Detached (freehold) | Jun 1998 | £133,000 | 
| Rose Cottage, Ffynnonddrain | Detached (freehold) | Feb 1997 | £30,000 | 
| 4 Ffynnonddrain | Terraced (freehold) | Oct 1996 | £21,000 |