SA18 3 postcode sector in the SA18 district

SA18 3 is a sector of the SA18 district: every postcode that starts SA18 3. It has 262 postcodes in use, 4 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 SA18 3 sector, by gigabit broadband

Map of every postcode in the SA18 3 sector, by gigabit broadband Of the 262 postcodes in the SA18 3 sector that ONS places, 73 have no home or business that can get gigabit, 65 have some that can and 124 can all get it. 2 groups of postcodes without gigabit are outlined: 27 postcodes without gigabit; 5 postcodes without gigabit. Places named: Ammanford, Pen-y-groes and Gorslas, Llandybie, Tycroes and Capel Hendre. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A476A474A48 SA18 3AG: gigabit for allSA18 3AN: gigabit for allSA18 3AP: gigabit for allSA18 3AR: gigabit for allSA18 3AU: gigabit for allSA18 3AY: gigabit for allSA18 3BA: gigabit for allSA18 3BB: gigabit for allSA18 3BJ: gigabit for allSA18 3BQ: gigabit for allSA18 3BS: gigabit for allSA18 3BX: gigabit for allSA18 3BY: gigabit for allSA18 3BZ: gigabit for allSA18 3DD: gigabit for allSA18 3DJ: gigabit for allSA18 3DQ: gigabit for allSA18 3DR: gigabit for allSA18 3DS: gigabit for allSA18 3DU: gigabit for allSA18 3DW: gigabit for allSA18 3DX: gigabit for allSA18 3DZ: gigabit for allSA18 3EB: gigabit for allSA18 3EE: gigabit for allSA18 3EF: gigabit for allSA18 3EH: gigabit for allSA18 3EN: gigabit for allSA18 3EQ: gigabit for allSA18 3ER: gigabit for allSA18 3EX: gigabit for allSA18 3EY: gigabit for allSA18 3EZ: gigabit for allSA18 3FB: gigabit for allSA18 3FD: gigabit for allSA18 3GA: gigabit for allSA18 3HB: gigabit for allSA18 3HD: gigabit for allSA18 3HE: gigabit for allSA18 3HF: gigabit for allSA18 3HG: gigabit for allSA18 3HP: gigabit for allSA18 3HS: gigabit for allSA18 3LB: gigabit for allSA18 3LD: gigabit for allSA18 3LF: gigabit for allSA18 3LG: gigabit for allSA18 3LJ: gigabit for allSA18 3LL: gigabit for allSA18 3LP: gigabit for allSA18 3LR: gigabit for allSA18 3LW: gigabit for allSA18 3NF: gigabit for allSA18 3NH: gigabit for allSA18 3NJ: gigabit for allSA18 3NP: gigabit for allSA18 3NQ: gigabit for allSA18 3NW: gigabit for allSA18 3NX: gigabit for allSA18 3NY: gigabit for allSA18 3PA: gigabit for allSA18 3PD: gigabit for allSA18 3PE: gigabit for allSA18 3PJ: gigabit for allSA18 3PR: gigabit for allSA18 3PS: gigabit for allSA18 3QA: gigabit for allSA18 3QB: gigabit for allSA18 3QD: gigabit for allSA18 3QE: gigabit for allSA18 3QF: gigabit for allSA18 3QG: gigabit for allSA18 3QH: gigabit for allSA18 3QL: gigabit for allSA18 3QQ: gigabit for allSA18 3QR: gigabit for allSA18 3QX: gigabit for allSA18 3RA: gigabit for allSA18 3RF: gigabit for allSA18 3RJ: gigabit for allSA18 3RS: gigabit for allSA18 3RT: gigabit for allSA18 3RU: gigabit for allSA18 3RX: gigabit for allSA18 3RY: gigabit for allSA18 3SA: gigabit for allSA18 3SB: gigabit for allSA18 3SE: gigabit for allSA18 3SG: gigabit for allSA18 3SN: gigabit for allSA18 3SP: gigabit for allSA18 3SR: gigabit for allSA18 3SX: gigabit for allSA18 3TA: gigabit for allSA18 3TE: gigabit for allSA18 3TF: gigabit for allSA18 3TG: gigabit for allSA18 3TH: gigabit for allSA18 3TJ: gigabit for allSA18 3TL: gigabit for allSA18 3TN: gigabit for allSA18 3TP: gigabit for allSA18 3TQ: gigabit for allSA18 3TT: gigabit for allSA18 3TW: gigabit for allSA18 3TZ: gigabit for allSA18 3UE: gigabit for allSA18 3UH: gigabit for allSA18 3UJ: gigabit for allSA18 3UL: gigabit for allSA18 3UP: gigabit for allSA18 3YH: gigabit for allSA18 3YL: gigabit for allSA18 3YP: gigabit for allSA18 3AF: some gigabitSA18 3AS: some gigabitSA18 3AW: some gigabitSA18 3BD: some gigabitSA18 3BL: some gigabitSA18 3DN: some gigabitSA18 3DY: some gigabitSA18 3ED: some gigabitSA18 3ES: some gigabitSA18 3FA: some gigabitSA18 3HA: some gigabitSA18 3HH: some gigabitSA18 3HL: some gigabitSA18 3HX: some gigabitSA18 3HZ: some gigabitSA18 3LA: some gigabitSA18 3LE: some gigabitSA18 3LH: some gigabitSA18 3LN: some gigabitSA18 3LX: some gigabitSA18 3LY: some gigabitSA18 3NA: some gigabitSA18 3ND: some gigabitSA18 3NE: some gigabitSA18 3NG: some gigabitSA18 3NN: some gigabitSA18 3NR: some gigabitSA18 3NS: some gigabitSA18 3NT: some gigabitSA18 3NZ: some gigabitSA18 3PB: some gigabitSA18 3PF: some gigabitSA18 3PT: some gigabitSA18 3PY: some gigabitSA18 3QJ: some gigabitSA18 3QN: some gigabitSA18 3QP: some gigabitSA18 3QS: some gigabitSA18 3QT: some gigabitSA18 3QW: some gigabitSA18 3RD: some gigabitSA18 3RE: some gigabitSA18 3RG: some gigabitSA18 3RH: some gigabitSA18 3RP: some gigabitSA18 3RQ: some gigabitSA18 3RR: some gigabitSA18 3SD: some gigabitSA18 3SF: some gigabitSA18 3SJ: some gigabitSA18 3SL: some gigabitSA18 3SS: some gigabitSA18 3SZ: some gigabitSA18 3TB: some gigabitSA18 3TD: some gigabitSA18 3TR: some gigabitSA18 3TU: some gigabitSA18 3TX: some gigabitSA18 3UA: some gigabitSA18 3UB: some gigabitSA18 3YS: some gigabitSA18 3AJ: no gigabitSA18 3AQ: no gigabitSA18 3AX: no gigabitSA18 3AZ: no gigabitSA18 3BN: no gigabitSA18 3BU: no gigabitSA18 3EJ: no gigabitSA18 3FE: no gigabitSA18 3GY: no gigabitSA18 3HJ: no gigabitSA18 3HN: no gigabitSA18 3HW: no gigabitSA18 3HY: no gigabitSA18 3JA: no gigabitSA18 3JB: no gigabitSA18 3JD: no gigabitSA18 3JF: no gigabitSA18 3JG: no gigabitSA18 3JH: no gigabitSA18 3JJ: no gigabitSA18 3JL: no gigabitSA18 3JP: no gigabitSA18 3JQ: no gigabitSA18 3JR: no gigabitSA18 3JS: no gigabitSA18 3JT: no gigabitSA18 3JU: no gigabitSA18 3JW: no gigabitSA18 3JX: no gigabitSA18 3JY: no gigabitSA18 3JZ: no gigabitSA18 3LQ: no gigabitSA18 3LZ: no gigabitSA18 3NB: no gigabitSA18 3NL: no gigabitSA18 3PG: no gigabitSA18 3PH: no gigabitSA18 3PL: no gigabitSA18 3PN: no gigabitSA18 3PP: no gigabitSA18 3PQ: no gigabitSA18 3PW: no gigabitSA18 3QU: no gigabitSA18 3QZ: no gigabitSA18 3RB: no gigabitSA18 3RL: no gigabitSA18 3RN: no gigabitSA18 3SH: no gigabitSA18 3SU: no gigabitSA18 3SY: no gigabitSA18 3UD: no gigabitSA18 3UF: no gigabitSA18 3UG: no gigabitSA18 3UR: no gigabitSA18 3US: no gigabitSA18 3UU: no gigabitSA18 3UW: no gigabitSA18 3UY: no gigabitSA18 3YA: no gigabitSA18 3YB: no gigabitSA18 3YD: no gigabitSA18 3YF: no gigabitSA18 3YG: no gigabitSA18 3YN: no gigabitSA18 3YR: no gigabitSA18 3YT: no gigabitSA18 3AL: no gigabitSA18 3BH: no gigabitSA18 3EL: no gigabitSA18 3DL: no gigabit AmmanfordPen-y-groes and GorslasLlandybieTycroes and Capel Hendre 27 postcodes without gigabit, outlined: this goes to SA18 3UR, the one nearest the middle of them27 postcodes without gigabit5 postcodes without gigabit, outlined: this goes to SA18 3JL, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in the SA18 3 sector, by gigabit broadband Of the 262 postcodes in the SA18 3 sector that ONS places, 73 have no home or business that can get gigabit, 65 have some that can and 124 can all get it. 2 groups of postcodes without gigabit are outlined: 27 postcodes without gigabit; 5 postcodes without gigabit. Places named: Ammanford, Pen-y-groes and Gorslas, Llandybie. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A48 AmmanfordPen-y-groes and GorslasLlandybie 5 postcodes without gigabit, outlined: this goes to SA18 3JL, the one nearest the middle of them5 postcodes without gigabit
  • No home or business can get gigabit: 73
  • Some can get gigabit: 65
  • Every home and business can get gigabit: 124
  • Ofcom gives no figure: 0
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 262 postcodes in the SA18 3 sector that ONS places, 73 have no home or business that can get gigabit, 65 have some that can and 124 can all get it.

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 230 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

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

SA18 3AJSA18 3ALSA18 3AQSA18 3AXSA18 3AZSA18 3BHSA18 3BNSA18 3BUSA18 3DLSA18 3EJSA18 3ELSA18 3FE

Where the postcodes without gigabit lie together

  • 27 postcodes without gigabit, outlined on the map. SA18 3UR, is the one nearest the middle of them.
  • 5 postcodes without gigabit, outlined on the map. SA18 3JL, is the one nearest the middle of them.

What do homes sell for in SA18 3?

Homes in SA18 3 sold for a typical £214,000 in the 12 months to August 2026, across 124 sales, up 12.6% on the 12 months before, HM Land Registry's figures show.

£214,000 typical price, the 12 months to August 2026
£190,000 12 months to August 2025
▲ up 12.6% on the 12 months before
  • Detached £290,000 53 sales
  • Semi-detached £187,500 58 sales
  • Terraced £140,000 12 sales
  • Flat or maisonette 1 sale, too few to price

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 SA18 3. 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 SA18 3

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.

SA18 3ABSA18 3AFSA18 3AGSA18 3AJSA18 3ALSA18 3ANSA18 3APSA18 3AQSA18 3ARSA18 3ASSA18 3ATSA18 3AUSA18 3AWSA18 3AXSA18 3AYSA18 3AZSA18 3BASA18 3BBSA18 3BDSA18 3BGSA18 3BHSA18 3BJSA18 3BLSA18 3BNSA18 3BQSA18 3BSSA18 3BUSA18 3BWSA18 3BXSA18 3BYSA18 3BZSA18 3DASA18 3DBSA18 3DDSA18 3DESA18 3DJSA18 3DLSA18 3DNSA18 3DQSA18 3DRSA18 3DSSA18 3DTSA18 3DUSA18 3DWSA18 3DXSA18 3DYSA18 3DZSA18 3EASA18 3EBSA18 3EDSA18 3EESA18 3EFSA18 3EGSA18 3EHSA18 3EJSA18 3ELSA18 3ENSA18 3EQSA18 3ERSA18 3ESSA18 3EXSA18 3EYSA18 3EZSA18 3FASA18 3FBSA18 3FDSA18 3FESA18 3GASA18 3GLSA18 3GYSA18 3HASA18 3HBSA18 3HDSA18 3HESA18 3HFSA18 3HGSA18 3HHSA18 3HJSA18 3HLSA18 3HNSA18 3HPSA18 3HSSA18 3HWSA18 3HXSA18 3HYSA18 3HZSA18 3JASA18 3JBSA18 3JDSA18 3JFSA18 3JGSA18 3JHSA18 3JJSA18 3JLSA18 3JNSA18 3JPSA18 3JQSA18 3JRSA18 3JSSA18 3JTSA18 3JUSA18 3JWSA18 3JXSA18 3JYSA18 3JZSA18 3LASA18 3LBSA18 3LDSA18 3LESA18 3LFSA18 3LGSA18 3LHSA18 3LJSA18 3LLSA18 3LNSA18 3LPSA18 3LQSA18 3LRSA18 3LWSA18 3LXSA18 3LYSA18 3LZSA18 3NASA18 3NBSA18 3NDSA18 3NESA18 3NFSA18 3NGSA18 3NHSA18 3NJSA18 3NLSA18 3NNSA18 3NPSA18 3NQSA18 3NRSA18 3NSSA18 3NTSA18 3NWSA18 3NXSA18 3NYSA18 3NZSA18 3PASA18 3PBSA18 3PDSA18 3PESA18 3PFSA18 3PGSA18 3PHSA18 3PJSA18 3PLSA18 3PNSA18 3PPSA18 3PQSA18 3PRSA18 3PSSA18 3PTSA18 3PUSA18 3PWSA18 3PYSA18 3QASA18 3QBSA18 3QDSA18 3QESA18 3QFSA18 3QGSA18 3QHSA18 3QJSA18 3QLSA18 3QNSA18 3QPSA18 3QQSA18 3QRSA18 3QSSA18 3QTSA18 3QUSA18 3QWSA18 3QXSA18 3QZSA18 3RASA18 3RBSA18 3RDSA18 3RESA18 3RFSA18 3RGSA18 3RHSA18 3RJSA18 3RLSA18 3RNSA18 3RPSA18 3RQSA18 3RRSA18 3RSSA18 3RTSA18 3RUSA18 3RXSA18 3RYSA18 3SASA18 3SBSA18 3SDSA18 3SESA18 3SFSA18 3SGSA18 3SHSA18 3SJSA18 3SLSA18 3SNSA18 3SPSA18 3SRSA18 3SSSA18 3SUSA18 3SXSA18 3SYSA18 3SZSA18 3TASA18 3TBSA18 3TDSA18 3TESA18 3TFSA18 3TGSA18 3THSA18 3TJSA18 3TLSA18 3TNSA18 3TPSA18 3TQSA18 3TRSA18 3TSSA18 3TTSA18 3TUSA18 3TWSA18 3TXSA18 3TYSA18 3TZSA18 3UASA18 3UBSA18 3UDSA18 3UESA18 3UFSA18 3UGSA18 3UHSA18 3UJSA18 3ULSA18 3UPSA18 3URSA18 3USSA18 3UTSA18 3UUSA18 3UWSA18 3UYSA18 3YASA18 3YBSA18 3YDSA18 3YFSA18 3YGSA18 3YHSA18 3YLSA18 3YNSA18 3YPSA18 3YRSA18 3YSSA18 3YTSA18 3YU

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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