SA31 3NG maps, stats, and open data
SA31 3NG lies on Llansteffan Road in Johnstown, Carmarthen. SA31 3NG is located in the Carmarthen Town North and South electoral ward, within the unitary authority of Carmarthenshire and the Welsh Parliamentary constituency of Carmarthen West and South Pembrokeshire. The Local Health Board is Hywel Dda University and the police force is Dyfed-Powys. This postcode has been in use since January 1980.
SA31 3NG maps
Source: OS VectorMap District (Ordnance Survey)
Licence: Open Government Licence (requires attribution)
SA31 3NG geodata
| Easting | 240014 |
| Northing | 219398 |
| Latitude | 51.850195 |
| Longitude | -4.324205 |
Where is SA31 3NG?
| Street | Llansteffan Road |
| Locality | Johnstown |
| Town/City | Carmarthen |
| Country | Wales |
| Postcode District | SA31 |
SA31 3NG Elevation
Elevation or altitude of SA31 3NG as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 10m | 33ft |
Elevation is measured from the approximate centre of the postcode, to the nearest point on an OS contour line from OS Terrain 50, which has contour spacing of ten vertical metres.
➜ How high above sea level am I? Find the elevation of your current position using your device's GPS.
Politics
| Ward | Carmarthen Town North And South |
|---|---|
| Constituency | Carmarthen West And South Pembrokeshire |
House Prices
Sales of detached houses in SA31 3NG
TY CATHOD, LLANSTEFFAN ROAD, JOHNSTOWN, CARMARTHEN, SA31 3NG 2022 24 JAN £220,000 |
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Transport
Nearest bus stops to SA31 3NG
| Llansteffan Road | Johnstown | 151m |
| Playing Fields (Llansteffan Road) | Johnstown | 167m |
| Johnstown Depot (Alltycnap Road) | Johnstown | 197m |
| Pondside (Llansteffan Road) | Johnstown | 236m |
| Llansteffan Road | Johnstown | 262m |
Nearest railway stations to SA31 3NG
| Carmarthen Station | 1.3km |
Broadband
Broadband access in SA31 3NG (2020 data)
| Percentage of properties with Next Generation Access | 100.0% |
| Percentage of properties with Superfast Broadband | 100.0% |
| Percentage of properties with Ultrafast Broadband | 0.0% |
| Percentage of properties with Full Fibre Broadband | 0.0% |
Superfast Broadband is between 30Mbps and 300Mbps
Ultrafast Broadband is > 300Mbps
Broadband speed in SA31 3NG (2019 data)
Download
| Median download speed | 58.2Mbps |
| Average download speed | 46.4Mbps |
| Maximum download speed | 80.00Mbps |
Upload
| Median upload speed | 14.8Mbps |
| Average upload speed | 11.4Mbps |
| Maximum upload speed | 20.00Mbps |
Broadband limitations in SA31 3NG (2020 data)
| Percentage of properties unable to receive 2Mbps | 0.0% |
| Percentage of properties unable to receive 5Mbps | 0.0% |
| Percentage of properties unable to receive 10Mbps | 0.0% |
| Percentage of properties unable to receive 30Mbps | 0.0% |
SA31 3NG gas and electricity consumption
Estimated total energy consumption in SA31 3NG by fuel type, 2015.
Gas
| Consumption (kWh) | 76,071 |
|---|---|
| Meter count | 6 |
| Mean (kWh/meter) | 12,679 |
| Median (kWh/meter) | 11,042 |
Electricity
| Consumption (kWh) | 29,673 |
|---|---|
| Meter count | 6 |
| Mean (kWh/meter) | 4,946 |
| Median (kWh/meter) | 4,206 |
- Consumption: The estimated total energy consumption, in kWh, across all meters in SA31 3NG, for 2015.
- Meter count: The total number of meters in SA31 3NG.
- Mean: The mean average consumption per meter, in kWh.
- Median: The median average consumption per meter, in kWh.
Source: Postcode level electricity estimates: 2015 (experimental)
Licence: Open Government Licence
Deprivation
23.4% of Welsh postcodes are less deprived than SA31 3NG:Food Standards Agency
Three nearest food hygiene ratings to SA31 3NG (metres)
➜ Get more ratings from the Food Standards Agency
Nearest post box to SA31 3NG
| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Johnstown Post Office | 17:15 | 11:30 | 355m |
| Tesco | 17:45 | 11:45 | 617m |
| Parcmaen St | 17:45 | 11:30 | 991m |
SA31 3NG ITL and SA31 3NG LAU
The below table lists the International Territorial Level (ITL) codes (formerly Nomenclature of Territorial Units for Statistics (NUTS) codes) and Local Administrative Units (LAU) codes for SA31 3NG:
| ITL 1 Code | Name |
|---|---|
| TLL | Wales |
| ITL 2 Code | Name |
| TLL1 | West Wales and The Valleys |
| ITL 3 Code | Name |
| TLL14 | South West Wales |
| LAU 1 Code | Name |
| W06000010 | Carmarthenshire |
SA31 3NG census areas
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SA31 3NG:
| Code | Name | |
|---|---|---|
| OA | W00003443 | |
| LSOA | W01000642 | Carmarthenshire 008B |
| MSOA | W02000149 | Carmarthenshire 008 |
Nearest postcodes to SA31 3NG
| SA31 3LZ | Llansteffan Road | 118m |
| SA31 3HU | Pondside | 248m |
| SA31 3HT | Heol Salem | 305m |
| SA31 3PW | Porth Y Plas | 332m |
| SA31 3LY | Llansteffan Road | 333m |
| SA31 3HJ | Heol Salem | 342m |
| SA31 3HS | Heol Salem | 350m |
| SA31 3HL | Old St Clears Road | 352m |
| SA31 3NQ | Llansteffan Road | 354m |
| SA31 3LX | Maes Y Dderwen | 375m |
- Contains OS data © Crown copyright and database right (2026)
- Contains Royal Mail data © Royal Mail copyright and Database right (2026)
- Contains National Statistics data © Crown copyright and database right (2026)
- Data produced by Land Registry © Crown copyright (2026)
- Contains Environment Agency data licensed under the Open Government Licence v3.0
- Everything else © GetTheData Publishing Limited (2026)
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