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SA18 2

Postcode sector

275 live postcodes: 259 in Carmarthenshire, 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 94% of SA18 2’s postcodes. Open the map at SA18 2 for neighbourhoods and points. Open the map at SA18 2

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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 94% of SA18 2

Average house price
£199,025
Up 6.0% in a year
HM Land Registry · Jul 2026
Median full-time pay
£37,405
138th lowest of 348
ONS earnings survey · 2025
House price to pay
5.3×
54th most affordable of 348
Worked out by Open Index
Population
187,897
117th highest of 361
ONS Census 2021 · 2021

Everything about Carmarthenshire

Councils in SA18 2

Postcodes in SA18 2