SA31 3JS lies on Bridge Street in Carmarthen. SA31 3JS 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.


| Easting | 241258 |
| Northing | 219945 |
| Latitude | 51.855456 |
| Longitude | -4.306388 |
| Street | Bridge Street |
| Town/City | Carmarthen |
| Country | Wales |
| Postcode District | SA31 |
Elevation or altitude of SA31 3JS as distance above sea level:
| Metres | Feet | |
|---|---|---|
| Elevation | 20m | 66ft |
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.
| Ward | Carmarthen Town North And South |
|---|---|
| Constituency | Carmarthen West And South Pembrokeshire |
18, BRIDGE STREET, CARMARTHEN, SA31 3JS 2005 30 JUN £115,000 |
18, BRIDGE STREET, CARMARTHEN, SA31 3JS 2001 27 JUN £55,500 |
| Council Offices (Spilman Street) | Carmarthen | 215m |
| Railway Station (Station Approach) | Carmarthen | 224m |
| Peacocks (Lammas Street) | Carmarthen | 242m |
| Market Way (Market Street) | Carmarthen | 327m |
| Southern Terrace (A484) | Pensarn | 335m |
| Carmarthen Station | 0.2km |
| 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
| Median download speed | 15.4Mbps |
| Average download speed | 40.5Mbps |
| Maximum download speed | 80.00Mbps |
| Median upload speed | 1.2Mbps |
| Average upload speed | 8.6Mbps |
| Maximum upload speed | 20.00Mbps |
| 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% |
Estimated total energy consumption in SA31 3JS by fuel type, 2015.
| Consumption (kWh) | 118,130 |
|---|---|
| Meter count | 20 |
| Mean (kWh/meter) | 5,907 |
| Median (kWh/meter) | 3,595 |
| Consumption (kWh) | 34,884 |
|---|---|
| Meter count | 15 |
| Mean (kWh/meter) | 2,326 |
| Median (kWh/meter) | 1,210 |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Bronyglyn | 17:00 | 11:30 | 154m |
| Railway Station | 18:00 | 12:00 | 248m |
| Lammas St | 17:30 | 12:00 | 303m |
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 3JS:
| 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 |
The below table lists the Census Output Area (OA), Lower Layer Super Output Area (LSOA), and Middle Layer Super Output Area (MSOA) for SA31 3JS:
| Code | Name | |
|---|---|---|
| OA | W00003450 | |
| LSOA | W01000641 | Carmarthenshire 008A |
| MSOA | W02000149 | Carmarthenshire 008 |
| SA31 1TN | St Marys Street | 47m |
| SA31 1PQ | Nott Square | 72m |
| SA31 1PH | Hall Street | 79m |
| SA31 1PG | Nott Square | 87m |
| SA31 3JT | Quay Street | 98m |
| SA31 3LW | Jolly Tar Lane | 100m |
| SA31 3LE | Blue Street | 110m |
| SA31 1PR | Guildhall Square | 117m |
| SA31 1JT | Queen Street | 119m |
| SA31 3JP | Coracle Way | 132m |