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SA20

Postcode district

237 live postcodes, all in Carmarthenshire.

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. Open the map at SA20 for neighbourhoods and points. Open the map at SA20

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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 100% of SA20

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

Sectors in SA20