SA31 1 postcode sector in the SA31 district

SA31 1 is a sector of the SA31 district: every postcode that starts SA31 1. It has 208 postcodes in use, 12 of them large-user postcodes. A large-user postcode is one Royal Mail gives to a single address that gets a lot of mail.

Not sure what a sector is? UK postcode format explained.

Every postcode in the SA31 1 sector, by gigabit broadband

Map of every postcode in the SA31 1 sector, by gigabit broadband Of the 208 postcodes in the SA31 1 sector that ONS places, 20 have no home or business that can get gigabit, 64 have some that can, 122 can all get it and 2 have no Ofcom figure. One group of postcodes without gigabit is outlined: 9 postcodes without gigabit. 2 postcodes lie beyond the edge and are listed under the map. Places named: Carmarthen. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. SA31 1AS: gigabit for allSA31 1AW: gigabit for allSA31 1DA: gigabit for allSA31 1DB: gigabit for allSA31 1DD: gigabit for allSA31 1DE: gigabit for allSA31 1DG: gigabit for allSA31 1DH: gigabit for allSA31 1DJ: gigabit for allSA31 1DL: gigabit for allSA31 1DN: gigabit for allSA31 1DP: gigabit for allSA31 1DQ: gigabit for allSA31 1DS: gigabit for allSA31 1DX: gigabit for allSA31 1DZ: gigabit for allSA31 1EA: gigabit for allSA31 1EE: gigabit for allSA31 1EJ: gigabit for allSA31 1ET: gigabit for allSA31 1GD: gigabit for allSA31 1GW: gigabit for allSA31 1GX: gigabit for allSA31 1GY: gigabit for allSA31 1HA: gigabit for allSA31 1HB: gigabit for allSA31 1HD: gigabit for allSA31 1HE: gigabit for allSA31 1HF: gigabit for allSA31 1HG: gigabit for allSA31 1HH: gigabit for allSA31 1HJ: gigabit for allSA31 1HL: gigabit for allSA31 1HP: gigabit for allSA31 1HQ: gigabit for allSA31 1HR: gigabit for allSA31 1HT: gigabit for allSA31 1HU: gigabit for allSA31 1HW: gigabit for allSA31 1HX: gigabit for allSA31 1HY: gigabit for allSA31 1HZ: gigabit for allSA31 1JA: gigabit for allSA31 1JB: gigabit for allSA31 1JD: gigabit for allSA31 1JE: gigabit for allSA31 1JF: gigabit for allSA31 1JG: gigabit for allSA31 1JJ: gigabit for allSA31 1JL: gigabit for allSA31 1JP: gigabit for allSA31 1JQ: gigabit for allSA31 1JU: gigabit for allSA31 1LD: gigabit for allSA31 1LH: gigabit for allSA31 1LL: gigabit for allSA31 1LS: gigabit for allSA31 1LU: gigabit for allSA31 1LZ: gigabit for allSA31 1NA: gigabit for allSA31 1NF: gigabit for allSA31 1NG: gigabit for allSA31 1NN: gigabit for allSA31 1NQ: gigabit for allSA31 1NR: gigabit for allSA31 1NS: gigabit for allSA31 1NT: gigabit for allSA31 1NU: gigabit for allSA31 1NW: gigabit for allSA31 1NY: gigabit for allSA31 1NZ: gigabit for allSA31 1PA: gigabit for allSA31 1PB: gigabit for allSA31 1PD: gigabit for allSA31 1PE: gigabit for allSA31 1PN: gigabit for allSA31 1PS: gigabit for allSA31 1PT: gigabit for allSA31 1PU: gigabit for allSA31 1PW: gigabit for allSA31 1PX: gigabit for allSA31 1QB: gigabit for allSA31 1QE: gigabit for allSA31 1QF: gigabit for allSA31 1RA: gigabit for allSA31 1RB: gigabit for allSA31 1RD: gigabit for allSA31 1RJ: gigabit for allSA31 1RL: gigabit for allSA31 1RN: gigabit for allSA31 1RP: gigabit for allSA31 1RR: gigabit for allSA31 1RT: gigabit for allSA31 1RU: gigabit for allSA31 1RW: gigabit for allSA31 1RY: gigabit for allSA31 1RZ: gigabit for allSA31 1SA: gigabit for allSA31 1SB: gigabit for allSA31 1SD: gigabit for allSA31 1SF: gigabit for allSA31 1SG: gigabit for allSA31 1SJ: gigabit for allSA31 1SL: gigabit for allSA31 1SN: gigabit for allSA31 1SQ: gigabit for allSA31 1SS: gigabit for allSA31 1ST: gigabit for allSA31 1SU: gigabit for allSA31 1SX: gigabit for allSA31 1SY: gigabit for allSA31 1SZ: gigabit for allSA31 1TA: gigabit for allSA31 1TD: gigabit for allSA31 1TE: gigabit for allSA31 1TH: gigabit for allSA31 1TJ: gigabit for allSA31 1TL: gigabit for allSA31 1TP: gigabit for allSA31 1TQ: gigabit for allSA31 1AF: some gigabitSA31 1BD: some gigabitSA31 1BH: some gigabitSA31 1BS: some gigabitSA31 1BU: some gigabitSA31 1BX: some gigabitSA31 1BY: some gigabitSA31 1DR: some gigabitSA31 1DU: some gigabitSA31 1EB: some gigabitSA31 1ED: some gigabitSA31 1EF: some gigabitSA31 1ER: some gigabitSA31 1EU: some gigabitSA31 1EX: some gigabitSA31 1EY: some gigabitSA31 1EZ: some gigabitSA31 1GA: some gigabitSA31 1GZ: some gigabitSA31 1HN: some gigabitSA31 1JN: some gigabitSA31 1JR: some gigabitSA31 1JW: some gigabitSA31 1JY: some gigabitSA31 1LN: some gigabitSA31 1LP: some gigabitSA31 1LQ: some gigabitSA31 1LR: some gigabitSA31 1LX: some gigabitSA31 1LY: some gigabitSA31 1NB: some gigabitSA31 1ND: some gigabitSA31 1NE: some gigabitSA31 1NH: some gigabitSA31 1NP: some gigabitSA31 1NX: some gigabitSA31 1PG: some gigabitSA31 1PH: some gigabitSA31 1PR: some gigabitSA31 1PY: some gigabitSA31 1PZ: some gigabitSA31 1QD: some gigabitSA31 1QG: some gigabitSA31 1QL: some gigabitSA31 1QN: some gigabitSA31 1QT: some gigabitSA31 1QX: some gigabitSA31 1RE: some gigabitSA31 1RF: some gigabitSA31 1RG: some gigabitSA31 1RH: some gigabitSA31 1RQ: some gigabitSA31 1RX: some gigabitSA31 1SH: some gigabitSA31 1SP: some gigabitSA31 1SW: some gigabitSA31 1TB: some gigabitSA31 1TF: some gigabitSA31 1TG: some gigabitSA31 1TN: some gigabitSA31 1TR: some gigabitSA31 1TS: some gigabitSA31 1TX: some gigabitSA31 1AD: no gigabitSA31 1AG: no gigabitSA31 1AH: no gigabitSA31 1AN: no gigabitSA31 1BA: no gigabitSA31 1BW: no gigabitSA31 1EG: no gigabitSA31 1EH: no gigabitSA31 1JT: no gigabitSA31 1LE: no gigabitSA31 1LG: no gigabitSA31 1LW: no gigabitSA31 1NJ: no gigabitSA31 1NL: no gigabitSA31 1PQ: no gigabitSA31 1QP: no gigabitSA31 1QY: no gigabitSA31 1QZ: no gigabitSA31 1RS: no gigabitSA31 1SR: no gigabit Carmarthen 9 postcodes without gigabit, outlined: this goes to SA31 1JT, the one nearest the middle of them9 postcodes without gigabit Map of every postcode in the SA31 1 sector, by gigabit broadband Of the 208 postcodes in the SA31 1 sector that ONS places, 20 have no home or business that can get gigabit, 64 have some that can, 122 can all get it and 2 have no Ofcom figure. One group of postcodes without gigabit is outlined: 9 postcodes without gigabit. 2 postcodes lie beyond the edge and are listed under the map. Places named: Carmarthen. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Carmarthen
  • No home or business can get gigabit: 20
  • Some can get gigabit: 64
  • Every home and business can get gigabit: 122
  • Ofcom gives no figure: 2
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 208 postcodes in the SA31 1 sector that ONS places, 20 have no home or business that can get gigabit, 64 have some that can, 122 can all get it and 2 have no Ofcom figure.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; gigabit: Ofcom, Connected Nations, Spring 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Postcodes without gigabit

20 postcodes here have no gigabit. These are the 12 first in postcode order.

SA31 1ADSA31 1AGSA31 1AHSA31 1ANSA31 1BASA31 1BWSA31 1EGSA31 1EHSA31 1JTSA31 1LESA31 1LGSA31 1LW

2 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

SA31 1TYSA31 1YF

Where the postcodes without gigabit lie together

  • 9 postcodes without gigabit, outlined on the map. SA31 1JT, is the one nearest the middle of them.

What do homes sell for in SA31 1?

Homes in SA31 1 sold for a typical £162,500 in the 12 months to August 2026, across 60 sales, up 11.3% on the 12 months before, HM Land Registry's figures show.

£162,500 typical price, the 12 months to August 2026
£146,000 12 months to August 2025
▲ up 11.3% on the 12 months before
  • Detached £285,000 7 sales
  • Semi-detached £185,000 19 sales
  • Terraced £132,500 28 sales
  • Flat or maisonette £168,750 6 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value at the postcodes that start SA31 1. A typical price is the median, the middle sale, given from 5 sales or more.

How we work this out: house prices by postcode

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in SA31 1

Pick a postcode to see its council and MP, broadband, flood risk, what homes sell for, council tax, the nearest schools and stations, and crime around it.

SA31 1ADSA31 1AFSA31 1AGSA31 1AHSA31 1ANSA31 1ASSA31 1AWSA31 1BASA31 1BDSA31 1BHSA31 1BSSA31 1BUSA31 1BWSA31 1BXSA31 1BYSA31 1DASA31 1DBSA31 1DDSA31 1DESA31 1DGSA31 1DHSA31 1DJSA31 1DLSA31 1DNSA31 1DPSA31 1DQSA31 1DRSA31 1DSSA31 1DUSA31 1DXSA31 1DYSA31 1DZSA31 1EASA31 1EBSA31 1EDSA31 1EESA31 1EFSA31 1EGSA31 1EHSA31 1EJSA31 1ERSA31 1ETSA31 1EUSA31 1EXSA31 1EYSA31 1EZSA31 1GASA31 1GDSA31 1GWSA31 1GXSA31 1GYSA31 1GZSA31 1HASA31 1HBSA31 1HDSA31 1HESA31 1HFSA31 1HGSA31 1HHSA31 1HJSA31 1HLSA31 1HNSA31 1HPSA31 1HQSA31 1HRSA31 1HTSA31 1HUSA31 1HWSA31 1HXSA31 1HYSA31 1HZSA31 1JASA31 1JBSA31 1JDSA31 1JESA31 1JFSA31 1JGSA31 1JJSA31 1JLSA31 1JNSA31 1JPSA31 1JQSA31 1JRSA31 1JTSA31 1JUSA31 1JWSA31 1JYSA31 1LDSA31 1LESA31 1LGSA31 1LHSA31 1LLSA31 1LNSA31 1LPSA31 1LQSA31 1LRSA31 1LSSA31 1LUSA31 1LWSA31 1LXSA31 1LYSA31 1LZSA31 1NASA31 1NBSA31 1NDSA31 1NESA31 1NFSA31 1NGSA31 1NHSA31 1NJSA31 1NLSA31 1NNSA31 1NPSA31 1NQSA31 1NRSA31 1NSSA31 1NTSA31 1NUSA31 1NWSA31 1NXSA31 1NYSA31 1NZSA31 1PASA31 1PBSA31 1PDSA31 1PESA31 1PFSA31 1PGSA31 1PHSA31 1PNSA31 1PQSA31 1PRSA31 1PSSA31 1PTSA31 1PUSA31 1PWSA31 1PXSA31 1PYSA31 1PZSA31 1QBSA31 1QDSA31 1QESA31 1QFSA31 1QGSA31 1QLSA31 1QNSA31 1QPSA31 1QTSA31 1QXSA31 1QYSA31 1QZSA31 1RASA31 1RBSA31 1RDSA31 1RESA31 1RFSA31 1RGSA31 1RHSA31 1RJSA31 1RLSA31 1RNSA31 1RPSA31 1RQSA31 1RRSA31 1RSSA31 1RTSA31 1RUSA31 1RWSA31 1RXSA31 1RYSA31 1RZSA31 1SASA31 1SBSA31 1SDSA31 1SFSA31 1SGSA31 1SHSA31 1SJSA31 1SLSA31 1SNSA31 1SPSA31 1SQSA31 1SRSA31 1SSSA31 1STSA31 1SUSA31 1SWSA31 1SXSA31 1SYSA31 1SZSA31 1TASA31 1TBSA31 1TDSA31 1TESA31 1TFSA31 1TGSA31 1THSA31 1TJSA31 1TLSA31 1TNSA31 1TPSA31 1TQSA31 1TRSA31 1TSSA31 1TXSA31 1TYSA31 1YFSA31 1ZD

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed. See all our data sources

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