SA14 6DZ is located in the Saron electoral ward, within the unitary authority of Carmarthenshire and the Welsh Parliamentary constituency of Carmarthen East and Dinefwr. The Local Health Board is Hywel Dda University and the police force is Dyfed-Powys. This postcode has been in use since July 2019.


| Easting | 257613 |
| Northing | 210735 |
| Latitude | 51.777125 |
| Longitude | -4.065316 |
| Country | Wales |
| Postcode District | SA14 |
| Ward | Saron |
|---|---|
| Constituency | Carmarthen East And Dinefwr |
2023 31 MAY £249,000 |
2021 29 MAR £197,500 |
14, COED Y DDERWEN, CWMGWILI, LLANELLI, SA14 6DZ 2019 17 DEC £199,950 |
| Lotwen Road | Waterloo | 257m |
| Playground (Heol-y-deri) | Cwmgwili | 423m |
| Playground (Heol-y-deri) | Cwmgwili | 434m |
| Thornhill Road | Waterloo | 610m |
| Cwmgwili Lay-by (A48) | Cwmgwili | 655m |
| Pantyffynnon Station | 4.7km |
| Ammanford Station | 5.2km |
| Llandybie Station | 6.5km |
| 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
| 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% |



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| Last Collection | |||
|---|---|---|---|
| Location | Mon-Fri | Sat | Distance |
| Cwmgwili Post Office | 16:00 | 11:00 | 395m |
| Cwmgwili School | 16:30 | 10:30 | 544m |
| Capel Hendre P O | 16:45 | 11:45 | 1,757m |
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 SA14 6DZ:
| 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 SA14 6DZ:
| Code | Name | |
|---|---|---|
| OA | W00003892 | |
| LSOA | W01000724 | Carmarthenshire 011C |
| MSOA | W02000152 | Carmarthenshire 011 |
| SA14 6PS | 90m | |
| SA14 6PX | Coed Y Cadno | 112m |
| SA14 6PR | 116m | |
| SA14 6PU | Gwili Avenue | 325m |
| SA18 3RN | 351m | |
| SA14 6PT | Thornhill Road | 478m |
| SA14 6PH | Heol Y Deri | 481m |
| SA14 6PP | 508m | |
| SA14 6AQ | Clos Gwili | 683m |
| SA14 6PG | Pontardulais Road | 697m |