| Postcode | SA31 3NJ |
|---|---|
| Post Town | Carmarthen |
| Nearest station | Carmarthen (1 km) |
| Bus stops |
Cartref Cynnes (S)
Leisure Centre (NW)
Queen Elizabeth High School (SE)
Playing Fields (NW)
Llansteffan Road (SE)
Cambria School (S)
|
| Roads in this postcode | |
| Number of UPRNs | 39 View |
| Known addresses |
1 Lon Y Plas, Johnstown
2 Lon Y Plas, Johnstown
3 Lon Y Plas, Johnstown
7 Lon Y Plas, Johnstown
9 Lon Y Plas, Johnstown
11 Lon Y Plas, Johnstown
12 Lon Y Plas, Johnstown
13 Lon Y Plas, Johnstown
14 Lon Y Plas, Johnstown
16 Lon Y Plas, Johnstown
17 Lon Y Plas, Johnstown
20 Lon Y Plas, Johnstown
22 Lon Y Plas, Johnstown
24 Lon Y Plas, Johnstown
25 Lon Y Plas, Johnstown
26 Lon Y Plas, Johnstown
28 Lon Y Plas, Johnstown
29 Lon Y Plas, Johnstown
30 Lon Y Plas, Johnstown
32 Lon Y Plas, Johnstown
34 Lon Y Plas, Johnstown
35 Lon Y Plas, Johnstown
36 Lon Y Plas, Johnstown
37 Lon Y Plas, Johnstown
|
| Main property type | Detached |
| Businesses |
| Latitude | 51.846332 | |
|---|---|---|
| Longitude | -4.324456 | |
| Easting | 239981 | |
| Northing | 218970 | |
| Grid reference | SN399189 | |
| UTM reference | 30U 408766 5744776 | |
| what3words | juices.herds.tribes | |
| FixPhrase | crisped luminous smite ultra | |
| Plus code | 9C3QRMWG+G6 | |
| Altitude | 13 metres (44 feet) | |
| Sunrise (today) | 7:23 | |
| Sunset (today) | 16:40 | |
| Distance away | ||
| Distance to sea | 3.4 KMs (2.1 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 | March 1988 |
|---|---|
| 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) | 89 | |
|---|---|---|
| Households (2011) | 37 | |
| 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) | W00003443 | |
| Census output area (2011) | 1C3 | |
| Lower layer super output area (2021) | Carmarthenshire 008B | W01000642 |
| Lower layer super output area (2011) | Carmarthenshire 008B | W01000642 |
| 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 | £199,164 |
|---|---|
| Annual change | 2.0% |
| Address | Type | Date | Price |
|---|---|---|---|
| 14 Lon Y Plas, Johnstown | Detached (freehold) | Mar 2024 | £285,000 |
| 2 Lon Y Plas, Johnstown | Detached (freehold) | Jan 2024 | £315,000 |
| Detached (freehold) | Aug 2022 | £265,000 | |
| 22 Lon Y Plas, Johnstown | Detached (freehold) | Nov 2023 | £139,365 |
| Detached (freehold) | Oct 1997 | £80,500 | |
| 1 Lon Y Plas, Johnstown | Other (freehold) | May 2023 | £270,000 |
| 16 Lon Y Plas, Johnstown | Detached (freehold) | May 2021 | £172,000 |
| 3 Lon Y Plas, Johnstown | Detached (freehold) | Jan 2021 | £222,500 |
| Detached (freehold) | Dec 2006 | £195,000 | |
| Detached (freehold) | Sep 2002 | £108,000 | |
| 7 Lon Y Plas, Johnstown | Detached (freehold) | Oct 2019 | £199,000 |
| Detached (freehold) | Aug 2002 | £92,500 | |
| Detached (freehold) | Aug 1998 | £67,000 | |
| 9 Lon Y Plas, Johnstown | Detached (freehold) | Apr 2018 | £195,000 |
| Detached (freehold) | Oct 2009 | £175,000 | |
| Detached (freehold) | Aug 2000 | £73,000 | |
| Detached (freehold) | Feb 1995 | £70,000 | |
| 34 Lon Y Plas, Johnstown | Detached (freehold) | Jul 2017 | £170,000 |
| 13 Lon Y Plas, Johnstown | Detached (freehold) | Nov 2016 | £209,950 |
| Detached (freehold) | Nov 2006 | £165,000 |