The SA31 3 Carmarthen Postcode Sector

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The SA31 3 postcode sector is within the county of Dyfed.

Did you know? According to the 2021 Census, the SA31 3 postcode sector is home to a bustling 7,557 residents!

Given that each sector allows for 400 unique postcode combinations. Letters C, I, K, M, O and V are not allowed in the last two letters of a postcode. With 201 postcodes already in use, this leaves 199 units available.

The largest settlement in the SA31 3 postal code is CARMARTHEN followed by JOHNSTOWN, and LLANLLWCH.

The SA31 3 Postcode shares a border with SA31 1 (CARMARTHEN), SA33 6 (CYNWYL ELFED, BRONWYDD, LLANPUMSAINT), SA31 2 (LLANGUNNOR, CARMARTHEN, ABERGWILI), SA32 8 (LLANARTHNE, DRYSLWYN, PORTHYRHYD) and SA33 5 (LLANGAIN, LLANSTEFFAN, MEIDRIM).

The sector is within the post town of CARMARTHEN.

SA31 3 is a postcode sector within the SA31 postcode district which is within the SA Swansea postcode area.

The Royal Mail delivery office for the SA31 3 postal sector is the Carmarthen Delivery Office.

The area of the SA31 3 postcode sector is 4.26 square miles which is 11.02 square kilometres or 2,724.29 square acres.

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Map Showing Location of the SA31 postcode Sector
Where is the SA31 Postcode Sector?
A word cloud for the SA31 3 postcode
A word cloud showing place names for the SA31 3 postcode sector, can you see your street?

Map of the SA31 3 Postcode Sector

Explore the SA31 3 postcode sector by using our free interactive map.

Postcode format for the SA31 3 postcode sector
S A 3 1 - 3 X X
S A 3 1 Space 3 Letter Letter

Official List of Streets

Johnstown (36 Streets)

CARMARTHEN (65 Streets)

Weather Forecast for SA31 3

Press Button to Show Forecast for Carmarthen

Time PeriodIconDescriptionTemperatureRain ProbabilityWind
00:00 to 03:00symbol for CloudyCloudy7.0°C (feels like 5.0°C) 16.00%ENE 7 mph
03:00 to 06:00symbol for CloudyCloudy6.0°C (feels like 4.0°C) 15.00%ENE 7 mph
06:00 to 09:00symbol for OvercastOvercast6.0°C (feels like 3.0°C) 16.00%ENE 9 mph
09:00 to 12:00symbol for OvercastOvercast8.0°C (feels like 5.0°C) 14.00%ENE 9 mph
12:00 to 15:00symbol for OvercastOvercast9.0°C (feels like 6.0°C) 11.00%ENE 11 mph
15:00 to 18:00symbol for OvercastOvercast10.0°C (feels like 7.0°C) 13.00%NE 9 mph
18:00 to 21:00symbol for CloudyCloudy9.0°C (feels like 7.0°C) 7.00%NE 9 mph
21:00 to 00:00symbol for CloudyCloudy7.0°C (feels like 5.0°C) 4.00%NNE 9 mph

Press Button to Show Forecast for Carmarthen

Time PeriodIconDescriptionTemperatureRain ProbabilityWind
00:00 to 03:00symbol for CloudyCloudy7.0°C (feels like 4.0°C) 5.00%N 9 mph
03:00 to 06:00symbol for CloudyCloudy6.0°C (feels like 3.0°C) 6.00%N 9 mph
06:00 to 09:00symbol for CloudyCloudy6.0°C (feels like 4.0°C) 8.00%N 9 mph
09:00 to 12:00symbol for Sunny daySunny day10.0°C (feels like 7.0°C) 5.00%NNW 11 mph
12:00 to 15:00symbol for CloudyCloudy11.0°C (feels like 9.0°C) 7.00%NW 11 mph
15:00 to 18:00symbol for Partly cloudy (day)Partly cloudy (day)12.0°C (feels like 9.0°C) 1.00%WNW 11 mph
18:00 to 21:00symbol for Sunny daySunny day10.0°C (feels like 8.0°C) 1.00%W 11 mph
21:00 to 00:00symbol for Clear nightClear night8.0°C (feels like 5.0°C) 2.00%SW 9 mph

Press Button to Show Forecast for Carmarthen

Time PeriodIconDescriptionTemperatureRain ProbabilityWind
00:00 to 03:00symbol for CloudyCloudy8.0°C (feels like 6.0°C) 7.00%SSW 9 mph
03:00 to 06:00symbol for CloudyCloudy8.0°C (feels like 6.0°C) 8.00%S 11 mph
06:00 to 09:00symbol for CloudyCloudy9.0°C (feels like 6.0°C) 9.00%S 13 mph
09:00 to 12:00symbol for CloudyCloudy11.0°C (feels like 8.0°C) 13.00%S 18 mph
12:00 to 15:00symbol for CloudyCloudy12.0°C (feels like 9.0°C) 17.00%S 18 mph
15:00 to 18:00symbol for Heavy rainHeavy rain12.0°C (feels like 9.0°C) 70.00%S 18 mph
18:00 to 21:00symbol for Light rainLight rain11.0°C (feels like 8.0°C) 51.00%SSE 16 mph
21:00 to 00:00symbol for Light rainLight rain11.0°C (feels like 8.0°C) 49.00%SSE 16 mph

Press Button to Show Forecast for Carmarthen

Time PeriodIconDescriptionTemperatureRain ProbabilityWind
00:00 to 03:00symbol for Light rainLight rain10.0°C (feels like 7.0°C) 48.00%SE 16 mph
03:00 to 06:00symbol for Light rainLight rain10.0°C (feels like 7.0°C) 48.00%SE 16 mph
06:00 to 09:00symbol for Light rainLight rain10.0°C (feels like 7.0°C) 46.00%SE 16 mph
09:00 to 12:00symbol for Light rainLight rain11.0°C (feels like 8.0°C) 50.00%SE 16 mph
12:00 to 15:00symbol for CloudyCloudy13.0°C (feels like 10.0°C) 17.00%SE 16 mph
15:00 to 18:00symbol for CloudyCloudy13.0°C (feels like 11.0°C) 18.00%SE 16 mph
18:00 to 21:00symbol for Partly cloudy (day)Partly cloudy (day)13.0°C (feels like 11.0°C) 10.00%SE 11 mph
21:00 to 00:00symbol for CloudyCloudy10.0°C (feels like 8.0°C) 11.00%ESE 9 mph
Map of the SA31 3 and surrounding postcode sector

House Prices in the SA31 3 Postcode Sector

Yearly House Price Averages for the SA31 3 Postcode Sector
Type of Property 2018 Average 2018 Sales 2017 Average 2017 Sales 2016 Average 2016 Sales 2015 Average 2015 Sales
Detached £204,066 45 £190,618 58 £199,498 54 £205,759 40
Semi-Detached £164,346 43 £135,320 56 £145,720 49 £151,445 26
Terraced £117,177 33 £108,579 50 £113,373 44 £123,222 40
Flats £76,750 2 £0 0 £83,250 7 £70,000 1

Important Postcodes SA31 3 in the Postcode Sector

SA31 3AW

SA31 3AW is the postcode for Dyfed Powys Constabulary, Divisional Police Headquarters, Friars Park

SA31 3BB

SA31 3BB is the postcode for Pembrokeshire & Derwen NHS Trust, Cwm Seren, Jobs Well Road, HYWEL DDA HEALTH BOARD HAFAN DERWEN, Pembrokeshire & Derwen NHS Trust, Cwm Seren, Jobs Well Road, and Cwm Seren, Jobs Well Road

SA31 3BS

SA31 3BS is the postcode for Bro Myrddin Indoor Bowls Club Ltd, Picton Terrace

SA31 3BT

SA31 3BT is the postcode for Welsh Government, Government Buildings, Picton Terrace, and Welsh Government, Government Buildings

SA31 3DE

SA31 3DE is the postcode for St Marys Rc School, Union Street

SA31 3EP

SA31 3EP is the postcode for MAIN COLLEGE BUILDINGS, Trinity College, College Road, TOWER BLOCK, University of Wales - Trinity Saint David, Carmarthen Campus, PARRY BUILDING, University of Wales - Trinity Saint David, Carmarthen Campus, CRECHE - Y GAMFA WEN, University of Wales - Trinity Saint David, Carmarthen Campus, STUDENTS UNION, University of Wales - Trinity Saint David, Carmarthen Campus, DAFYDD ROWLANDS, University of Wales - Trinity Saint David, Carmarthen Campus, HALLIWELL CENTRE, Trinity College, College Road, TEACHING AND LEARNING BUILDING, University of Wales, Trinity St. David, College Road, NORAH ISAAC, University of Wales - Trinity Saint David, Carmarthen Campus, ARCHBISHOP NOAKES HALL 1, UNIVERSITY OF WALES - TRINITY SAINT DAVID, CARMARTHEN CAMPUS, ARCHBISHOP NOAKES HALL 2, UNIVERSITY OF WALES - TRINITY SAINT DAVID, CARMARTHEN CAMPUS, THEATRE WORKSHOP, University of Wales - Trinity Saint David, Carmarthen Campus, HALLIWELL CENTRE, University of Wales, Trinity St. David, College Road, NON HOSTEL, University of Wales - Trinity Saint David, Carmarthen Campus, MYRDDYN HOSTEL, University of Wales - Trinity Saint David, Carmarthen Campus, SPORTS HALL, University of Wales - Trinity Saint David, Carmarthen Campus, MYDDFAI BUILDING, University of Wales - Trinity Saint David, Carmarthen Campus, TEACHING AND LEARNING BLOCK, UNIVERSITY OF WALES, TRINITY ST. DAVID, COLLEGE ROAD, MAIN COLLEGE BUILDINGS, University of Wales, Trinity St. David, College Road, Halliwell Centre, University Of Wales Trinity Saint David, College Road, ROBERT HUNTER BUILDING, University of Wales - Trinity Saint David, Carmarthen Campus, Y STIWDIO & SWIMMING POOL, University of Wales - Trinity Saint David, Carmarthen Campus, Non A-D Student Halls of Residence, University of Wales - Trinity Saint David, Carmarthen Campus, University of Wales, Trinity St. David, College Road, ARCHBISHOP NOAKES HALL 3 & 4, University of Wales - Trinity Saint David, Carmarthen Campus, and ARCHBISHOP NOAKES HALL 1 & 2, University of Wales - Trinity Saint David, Carmarthen Campus

SA31 3EQ

SA31 3EQ is the postcode for Model Church in Wales School, College Road

SA31 3EZ

SA31 3EZ is the postcode for Department for Environment Food & Rural Affairs (D E F R A), Jobs Well Road, and Department for Environment, Food & Rural Affairs (DEFRA), Jobs Well Lane

SA31 3HB

SA31 3HB is the postcode for Block 8, Parc Dewi Sant, Carmarthenshire County Council, Building 2 Parc Dewi Sant, Jobs Well Road, and St Davids Park, Parc Dewi Sant, Job's Well Road

SA31 3HS

SA31 3HS is the postcode for Johnstown C. P. School, Johnstown

SA31 3HY

SA31 3HY is the postcode for BLOCK D, Coleg Sir Gar, Jobs Well Campus, Jobs Well Road, and Coleg Sir Gar, Jobs Well Campus, Jobs Well Road

SA31 3NL

SA31 3NL is the postcode for Queen Elizabeth High School, Llansteffan Road

SA31 3NQ

SA31 3NQ is the postcode for Carmarthen District Leisure Centre, Llansteffan Road, Rhydygors Cp School, Llansteffan Road, Johnstown, and Argel Residential Nursing Home, Llansteffan Road

SA31 3PY

SA31 3PY is the postcode for Cartref Tawelon, Ash Grove

SA31 3QU

SA31 3QU is the postcode for Cynefin, Llansteffan Road, Johnstown

SA31 3RB

SA31 3RB is the postcode for Cwm Cyntaf Steps II, Unit 4-6 Cambrian Park, Cillefwr Industrial Estate, Psychological Wellbeing Centre, Ty Myddfai, Cillefwr Industrial Estate, and Social Activity Centre, Cillefwr Industrial Estate, Johnstown

The SA31 3 Sector is within these Local Authorities
  • Sir Gaerfyrddin - Carmarthenshire
The SA31 3 Sector is within these Counties
  • Dyfed
The SA31 3 Sector is within these Water Company Areas
  • Wales