SA18
Postcode district772 live postcodes: 653 in Carmarthenshire, 103 in Neath Port Talbot and 16 in Swansea.
A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of Carmarthenshire, which holds 85% of SA18’s postcodes. Open the map at SA18 for neighbourhoods and points. Open the map at SA18
Deprivation by neighbourhood
Welsh Index of Multiple Deprivation 2025
Most deprived 10%Least
13 of Carmarthenshire’s 111 neighbourhoods are in Wales’s most deprived 20%.
Carmarthenshire, the council that holds 85% of SA18
Councils in SA18
- Carmarthenshire653 postcodes
- Neath Port Talbot103 postcodes
- Swansea16 postcodes