The UK Postcode Database

SA31 3NN

a postcode in Carmarthenshire

Introduced in January 1980
SA31 3NN Normal (geographic) postcodes Large user postcodes

The nearby postcodes map only shows currently active postcodes. Postcode markers will cluster if they are close together, which may happen in densly populated built-up areas or where single premises have multiple postcodes.

Streets Associated with SA31 3NN

Heol Llansteffan - 18 properties, USRN 47205123

Street names are those nearest to properties in this postcode, they are not necessarily the postal address

Coordinates

Latitude: 51.8449 / 51°50'41"N

Longitude: -4.3225 / 4°19'21"W

UTM Reference: 30U 408897 5744610

OS Easting: 240112

OS Northing: 218801

OS Grid: SN401188

Location Encoding

Mapcode Local: GBR DF.TY7H

Mapcode Global: VH3LH.1W6L

Open Location Code: 9C3QRMVG+WX

Maidenhead Locator System: IO71uu12

Demographics

Urban/Rural Indicator: C2

  • urban city or town
  • a town or city, surrounded by sparsely inhabited countryside

ONS Population Classification: 1b1

  • Retired Professionals
  • Small Town Suburbia
  • Younger Established Suburban Communities

Index of Multiple Deprivation (IMD): 1406 / 1909

  • 8th decile
  • less deprived

Demographics are based on the LSOA containing this postcode and not necessarily this postcode alone

Sun and Moon Times for SA31 3NN on Monday 6 July 2026

Nautical twilight begins (First light) 03:07
Civil twilight begins (Dawn) 04:19
Sunrise 05:06
Transit (sun is at its highest) 13:22
Sunset 21:37
Civil twilight ends (Dusk) 22:24
Nautical twilight ends (Nightfall) 23:36
Hours of daylight today04:36 to 22:07
Hours of darkness tonight
(lighting-up time)
22:07 to 04:37
Moon Phase Waning Gibbous
Moon Sets 11:23
Moon Rises 23:09

For a full sun and moon calendar for SA31 3NN, go to The Time and Place

Residential Property Sales in SA31 3NN

DateAddressProperty TypeTenurePrice
28 June 2019 124 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £172,000
26 September 2017 102 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £155,000
19 May 2016 106 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Detached Freehold £167,500
4 March 2016 110 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £144,000
23 November 2011 126 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £170,000
28 September 2007 112 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £164,000
12 January 2007 122 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Detached Freehold £160,000
5 August 2005 120 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Detached Freehold £156,000
4 June 2004 110 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £135,000
25 July 2002 106 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £49,000
20 June 1997 134 Llansteffan Road, Johnstown, Carmarthen SA31 3NN Semi-detached Freehold £53,250

Key to property sale icons:

First sale of newbuild property. This includes new properties created from existing properties, such as residential conversions of commercial or agricultural property, or subdivision of a larger residential property.
Subsequent sale of existing property.
Standard sale at market value to private individual.
Additional (non-standard) sale. This includes repossessions, buy-to-lets and transfers of property sold to non-private individuals.

Elected Representatives for SA31 3NN

United Kingdom Parliament
Constituency

Caerfyrddin

MP

Ann Davies Plaid Cymru

Senedd
Constituency

Carmarthen West and South Pembrokeshire

Senedd Member

Samuel Kurtz Welsh Conservative Party

Region

Mid and West Wales

Senedd Members

Cefin Campbell Plaid Cymru

Jane Dodds Welsh Liberal Democrats

Eluned Morgan Welsh Labour

Joyce Watson Welsh Labour

Carmarthenshire Council
Unitary Authority electoral division (UTE)

Carmarthen Town North and South

Councillors

Peter Griffiths Plaid Cymru

Gareth John Plaid Cymru

Alun Lenny Plaid Cymru

Elected representative data is updated approximately monthly, so may not include recent by-elections or vacancies.

Government Statistical Services (GSS) data for SA31 3NN

CodeNameData TypeData ThemeActive SinceData Owner
W00003454 Output Areas Statistical Building Block 1 January 2009 ONS
W01000642 Carmarthenshire 008B Lower layer Super Output Areas Statistical Building Block 1 February 2004 ONS
W02000149 Carmarthenshire 008 Middle layer Super Output Areas Statistical Building Block 1 August 2004 ONS
W04000494 Carmarthen Communities Administrative 1 January 2009 WG (LGBC)
W05001183 Carmarthen Town North and South Electoral Wards Administrative/Electoral 5 May 2022 WG (LGBC)
W06000010 Carmarthenshire Unitary Authorities Administrative 1 January 2009 WG (LGBC)
W07000087 Caerfyrddin Westminster Parliamentary Constituencies Electoral 4 July 2024 WG (BC)
W09000016 Carmarthen West and South Pembrokeshire Senedd Constituencies Electoral 1 January 2009 WG (BC)
W10000006 Mid and West Wales Senedd Electoral Regions Electoral 1 January 2012 WG (BC)
W11000025 Hywel Dda University Health Board Local Health Boards Health 1 October 2009 WG (Health)
W15000004 Dyfed-Powys Police Force Areas Other 1 January 2009 Home Office
W16000002 South West / Mid Wales Department for Children, Education, Lifelong Learning and Skills, WG Other 1 January 2009 WG (Educ)
W22000028 Llanelli Travel to Work Areas Other 31 July 2015 ONS
W31000001 Wales Non-National Park Area Wales Non-National Park Area Other 1 January 2009 WG (Envt)
W35001579 Workplace Zones Census 31 December 2011 ONS
W45000937 Carmarthen Built Up Areas Census 17 April 2024 OS
W92000004 Wales Country Administrative 1 January 2009 ONS

All public sector data is licensed under the Open Government Licence v2.0.

The UK Postcode Database is a Good Stuff website.

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