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SA31 1JN

POSTCODE

SA31 1JN is a postcode in Carmarthen Town North and South.

Small user postcodeQuality indicator 1 (highest positional precision)Updated 2026-08-01
Coordinates
51.8557, -4.3035
OS grid SN414199 (241,461, 219,960)
WIMD 2025
3/10
#509
Crime · Aug '26
High · 18.8 per 1k
MoM -12% vs Jul '26
Plus Code
9C3QVM4W+7J
Most deprived 20⁠–⁠30%
WIMD 2025
High · 18.8 per 1k
Crime · Aug '26
Wales
Region

Deprivation Index (IMD)

WIMD 2025 (Wales-only ranking)
Wales-only ranking. Rank 1 is the most deprived of 1,917 Welsh LSOAs. Not comparable with the English Index of Multiple Deprivation.
Decile 3 — Most deprived 20–30%
509
Rank out of 1,917
1 - Most deprived10 - Least deprived
Income
590
Employment
411
Health
512
Education
725
Access to services
1338
Housing
462
Community safety
146
Physical environment
575

gov.wales · Open Government Licence v3.0

Household income (MSOA)

Average household income for the neighbourhood (MSOA) around this postcode, financial year ending March 2023

Financial year ending March 2023 · MSOA 2021 · Carmarthenshire 008 (W02000149)

This is the published estimate for the MSOA that contains this postcode (about 2,000–6,000 households). It describes the neighbourhood around the postcode. England and Wales only.

Total annual household income
£41,860

£35,679–£49,113

Disposable (net) annual household income
£34,193

£29,612–£39,484

Disposable (net) annual household income before housing costs (equivalised)
£32,790

£30,225–£35,572

Disposable (net) annual household income after housing costs (equivalised)
£30,170

£26,418–£34,455

Source: Office for National Statistics. Income estimates for small areas, England and Wales, financial year ending 2023.

Income estimates for small areas, England and Wales · Open Government Licence v3.0

Property sales (Land Registry)

England & Wales
See sold prices in SA31

Police Recorded Crime near SA31 1JN

England & Wales
Crime trends · near SA31 1JN

Counts are for Carmarthen Town North and South electoral ward, not a 1-mile police.uk street search around this postcode.

data.police.uk · YoY vs same month last year · per 1,000 residents (Census 2021)Sep '24 – Aug '26
Key categories · YoY
Violent Crime
73
YoY +11%
95480
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
21
YoY +40%
29150
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
3
YoY —
740
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
9
YoY —
1160
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
15
YoY —
22110
Sep '24Mar '25Sep '25Mar '26Aug '26
Other recorded crime
50
YoY +22%
75380
Sep '24Mar '25Sep '25Mar '26Aug '26

0 of 6 key categories improving · asb rising

171
incidents · Aug '26

Demographics (LSOA 2021 context)

Ethnicity

Total residents: 2,063
White Brit.83.9%
Other White6.6%
Other ethnic group: Arab1.4%
Bangladeshi1.1%
Other Asian1.1%
+ 14 other groups · 6.0%

Religion

Total residents: 2,062
No religion47.2%
Christian40.2%
Not answered6.1%
Muslim3.8%
Other religion1.5%
+ 4 other religions · 1.2%

Age groups

Total residents: 2,062
25–3418.9%
35–4918.3%
50–6418.1%
65–7410.3%
75–847.4%
+ 6 other age groups · 27.1%

Households

Total households: 1,195
One person: other36.0%
One person: aged 66+20.0%
Cohabiting couple family: No children6.6%
Lone parent family: With dependent children6.2%
Single family household, all members 66+5.8%
+ 9 other households · 25.5%

Getting around

Straight-line distance from this postcode. Walking time is approximate.

Stations

  • Carmarthen Rail Station

    Rail · Side Entrance

    306 m straight lineabout 4 min

  • Ferryside Rail Station (Main Entrance)

    Rail · Main Entrance

    10.7 km straight lineabout 134 min

  • Ferryside Rail Station

    Rail

    10.7 km straight lineabout 134 min

Bus stops

  • Council Offices

    Bus · south-west

    119 m straight lineabout 1 min

  • St Peters Church

    Bus · north-east

    220 m straight lineabout 3 min

  • Carmarthen Railway Station

    Bus · north-east

    308 m straight lineabout 4 min

  • Carmarthen Bus Station

    Bus

    327 m straight lineabout 4 min

  • Carmarthen Bus Station Stand 3

    Bus

    328 m straight lineabout 4 min

Coordinates & Location for SA31 1JN

Wales
Country
Carmarthenshire
Local Authority
Carmarthen Town North and South
Ward
Llanelli
Travel to Work
TTWA
Postcode
SA31 1JN
Coordinates
51.8557, -4.3035
Grid reference
SN414199
Easting
241,461
Northing
219,960
Region
Wales
Plus Code
9C3QVM4W+7J
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Carmarthen
Travel to Work
Llanelli
ITL Region
Carmarthenshire
National Park
Non-National Park

Administrative Information

Carmarthenshire
Local Authority
Council Area
Caerfyrddin W07000087
Constituency
W07000087
Dyfed-Powys
Police Force
Wales
Ward
Carmarthen Town North and South
Constituency code
W07000087
EU Electoral Region
Wales
Parish
Carmarthen
International Territorial Level
Carmarthenshire

Health & NHS

Hywel Dda University Health Board
Health Authority
Serving (pseudo) Wales
NHS Wales
Wales
Cancer Alliance
National
Health Authority
Hywel Dda University Health Board
NHS Region
Wales
Integrated Care Board
Wales
Primary Care Org
Hywel Dda University Health Board
Sub ICB Location
Hywel Dda University
Cancer Alliance
Wales

Statistical Areas

LSOA 2021
Super Output Area
Carmarthenshire 008A W01000641
W01000641
MSOA 2021
Mid Super Output
Carmarthenshire 008 W02000149
W02000149
LSOA 2011
Super Output Area
Carmarthenshire 008A W01000641
W01000641
MSOA 2011
Mid Super Output
Carmarthenshire 008 W02000149
W02000149
Urban: Further from a major town or city
Rural/Urban Classification 2021
2001 Classification
(England/Wales) Urban ≥ 10k – sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is sparsely populated 1
2011 Classification
(England/Wales) Urban city and town in a sparse setting C2
2021 Classification
Urban: Further from a major town or city UF1

Sun & Time Information

7:55 AM6:07 PM
7:55 AM
Sunrise
6:07 PM
Sunset
10 hours 12 minutes of daylight today
Sunrise (today)
7:55 AM
Sunset (today)
6:07 PM
Daylight duration
10 hours 12 minutes
Time zone
GMT / BST (UTC +0 / +1)

Postcode History

January 1980
First Introduced
Active from
Not terminated
Usage Ended
Terminated
~46 years
Active Duration
1980 -> Present
January 1980 — Introduced
Postcode SA31 1JN introduced by Royal Mail.
2001 — Census Classification
2001 Rural/Urban Classification: (England/Wales) Urban ≥ 10k – sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is sparsely populated 1
2011 — Reclassified
2011 Rural/Urban Classification: (England/Wales) Urban city and town in a sparse setting C2.
2021 — Census Update
2021 Census classification: Urban: Further from a major town or city UF1. LSOA W01000641 and MSOA W02000149 assigned.
2025 — Indices of Deprivation
WIMD 2025 rank: 509
Present — Active
Postcode SA31 1JN is currently active and in use.
First introduced
January 1980
Usage ended
Not terminated
Active duration
~46 years
Last updated
2026-08-01
Current status
Live

School applications

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Apply for a primary place via Carmarthenshire
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Explore the full Carmarthenshire
See local data, transport links, deprivation trends and more for the broader area — all in one place.
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