Map of SA31 3NJ postcode

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General information
Postcode SA31 3NJ
Nearest station Carmarthen (1.5 km)
Bus stops
Cartref Cynnes (S)
Leisure Centre (NW)
Queen Elizabeth High School (SE)
Playing Fields (NW)
Llansteffan Road (SE)
Cambria School (S)
Nearby roads
Coed Y Plas
Heol Llansteffan (B4312)
Lon Y Plas
Plas Ioan
Plas Penwern
Plas Y Ddol
Porth Y Plas
Number of properties 38 View
Known addresses
3 Lon Y Plas, Johnstown
7 Lon Y Plas, Johnstown
9 Lon Y Plas, Johnstown
11 Lon Y Plas, Johnstown
12 Lon Y Plas, Johnstown
13 Lon Y Plas, Johnstown
16 Lon Y Plas, Johnstown
17 Lon Y Plas, Johnstown
20 Lon Y Plas, Johnstown
22 Lon Y Plas, Johnstown
24 Lon Y Plas, Johnstown
25 Lon Y Plas, Johnstown
26 Lon Y Plas, Johnstown
28 Lon Y Plas, Johnstown
29 Lon Y Plas, Johnstown
30 Lon Y Plas, Johnstown
32 Lon Y Plas, Johnstown
34 Lon Y Plas, Johnstown
35 Lon Y Plas, Johnstown
36 Lon Y Plas, Johnstown
37 Lon Y Plas, Johnstown
Note: Known addresses come from property sales so is incomplete
Latitude 51.846324
Longitude -4.324433
Easting 239983
Northing 218969
Grid reference SN399189
UTM reference 30U 408768 5744775
Plus code 9C3QRMWG+G6
Altitude 13 metres (44 feet)
Sunrise (today) 08:11
Sunset (today) 16:45
Distance away
Administrative areas
WardCarmarthen Town SouthW05000464
Unitary AuthorityCarmarthenshireW06000010
ConstituencyCarmarthen West and South PembrokeshireW07000066
MPSimon HartConservative
Police forceDyfed-Powys
Water companyDwr Cymru Welsh Water
NUTS/ITL 3South West Wales
NUTS/ITL 2West Wales and The Valleys
Country Wales
Note: Since administrative areas don't align to postcode boundaries, in some cases different addresses in the same postcode may be part of different administrative areas, so only use these as a guide
Date introduced March 1988
Last updated November 2021
User type Small (addresses receive less than 25 items of mail per day)
Quality Within the building of the matched address closest to the postcode mean
Population (2011) 89
Households (2011) 37
Index of Multiple Deprivation (2019)
1,406 / 1,909
Most deprivedLeast deprived
Average household income (2018)
Lowest (£20,000)Highest (£86,100)
Rural/urbanUrban city and town in a sparse setting
Built up areaCarmarthenW37000359
Census output areaW00003443
Lower layer super output areaCarmarthenshire 008BW01000642
Middle layer super output areaCarmarthen South & LlangynnwrW02000149
Travel to work areaLlanelliW22000028
Property sales
Average property price in Swansea £170,500
Annual change 13.2%
Properties recently sold in this postcode
16 Lon Y Plas, JohnstownDetached (freehold)2021-05-06£172,000
3 Lon Y Plas, JohnstownDetached (freehold)2021-01-29£222,500
Detached (freehold)2006-12-15£195,000
Detached (freehold)2002-09-16£108,000
7 Lon Y Plas, JohnstownDetached (freehold)2019-10-07£199,000
Detached (freehold)2002-08-06£92,500
Detached (freehold)1998-08-28£67,000
9 Lon Y Plas, JohnstownDetached (freehold)2018-04-11£195,000
Detached (freehold)2009-10-02£175,000
Detached (freehold)2000-08-18£73,000
Detached (freehold)1995-02-28£70,000
34 Lon Y Plas, JohnstownDetached (freehold)2017-07-25£170,000
13 Lon Y Plas, JohnstownDetached (freehold)2016-11-25£209,950
Detached (freehold)2006-11-28£165,000
11 Lon Y Plas, JohnstownDetached (freehold)2016-02-26£148,000
25 Lon Y Plas, JohnstownDetached (freehold)2013-08-16£165,000
Detached (freehold)2006-08-18£168,500
29 Lon Y Plas, JohnstownDetached (freehold)2012-11-30£147,500
20 Lon Y Plas, JohnstownDetached (freehold)2012-07-27£125,000
Detached (freehold)2007-05-16£156,000
Detached (freehold)2004-10-11£136,500
Detached (freehold)1996-12-19£49,000

This data covers the transactions received at Land Registry in the period 1995 to 2022.
Data produced by HM Land Registry © Crown copyright 2022.
View all properties sold in the SA31 3 area.