SG6 1 postcode sector in the SG6 district

SG6 1 is a sector of the SG6 district: every postcode that starts SG6 1. It has 217 postcodes in use, 16 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 SG6 1 sector, and which are new since 2020

Map of every postcode in the SG6 1 sector, by new since 2020 Of the 217 postcodes in the SG6 1 sector that ONS places, 2 are new since 2020 and 215 were in use before 2020. Places named: Letchworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A1(M)A505 SG6 1AA: before 2020SG6 1AB: before 2020SG6 1AD: before 2020SG6 1AE: before 2020SG6 1AG: before 2020SG6 1AH: before 2020SG6 1AJ: before 2020SG6 1AL: before 2020SG6 1AN: before 2020SG6 1AP: before 2020SG6 1AQ: before 2020SG6 1AR: before 2020SG6 1AS: before 2020SG6 1AT: before 2020SG6 1AW: before 2020SG6 1AX: before 2020SG6 1AY: before 2020SG6 1AZ: before 2020SG6 1BE: before 2020SG6 1BH: before 2020SG6 1BL: before 2020SG6 1BP: before 2020SG6 1BS: before 2020SG6 1BT: before 2020SG6 1BU: before 2020SG6 1BX: before 2020SG6 1BY: before 2020SG6 1BZ: before 2020SG6 1DA: before 2020SG6 1DB: before 2020SG6 1DD: before 2020SG6 1DE: before 2020SG6 1DF: before 2020SG6 1DG: before 2020SG6 1DH: before 2020SG6 1DJ: before 2020SG6 1DL: before 2020SG6 1DN: before 2020SG6 1DP: before 2020SG6 1DQ: before 2020SG6 1DR: before 2020SG6 1DS: before 2020SG6 1DT: before 2020SG6 1DU: before 2020SG6 1DW: before 2020SG6 1DX: before 2020SG6 1DY: before 2020SG6 1DZ: before 2020SG6 1EA: before 2020SG6 1EB: before 2020SG6 1ED: before 2020SG6 1EF: before 2020SG6 1EG: before 2020SG6 1EH: before 2020SG6 1EJ: before 2020SG6 1EL: before 2020SG6 1EQ: before 2020SG6 1ET: before 2020SG6 1EX: before 2020SG6 1FA: before 2020SG6 1FB: before 2020SG6 1FD: before 2020SG6 1FE: before 2020SG6 1FF: before 2020SG6 1FG: before 2020SG6 1FH: before 2020SG6 1FJ: before 2020SG6 1FL: before 2020SG6 1FN: before 2020SG6 1FP: before 2020SG6 1FQ: before 2020SG6 1FR: before 2020SG6 1FT: before 2020SG6 1FW: before 2020SG6 1FX: before 2020SG6 1FY: before 2020SG6 1FZ: before 2020SG6 1GB: before 2020SG6 1GH: before 2020SG6 1GJ: before 2020SG6 1GL: before 2020SG6 1GP: before 2020SG6 1GQ: before 2020SG6 1GR: before 2020SG6 1GT: before 2020SG6 1GU: before 2020SG6 1HA: before 2020SG6 1HB: before 2020SG6 1HD: before 2020SG6 1HE: before 2020SG6 1HG: before 2020SG6 1HJ: before 2020SG6 1HN: before 2020SG6 1HP: before 2020SG6 1HQ: before 2020SG6 1HR: before 2020SG6 1HU: before 2020SG6 1HX: before 2020SG6 1JA: before 2020SG6 1JE: before 2020SG6 1JF: before 2020SG6 1JG: before 2020SG6 1JH: before 2020SG6 1JJ: before 2020SG6 1JS: before 2020SG6 1JT: before 2020SG6 1JW: before 2020SG6 1JX: before 2020SG6 1JY: before 2020SG6 1JZ: before 2020SG6 1LA: before 2020SG6 1LB: before 2020SG6 1LD: before 2020SG6 1LH: before 2020SG6 1LJ: before 2020SG6 1LL: before 2020SG6 1LN: before 2020SG6 1LP: before 2020SG6 1LU: before 2020SG6 1LW: before 2020SG6 1NA: before 2020SG6 1ND: before 2020SG6 1NE: before 2020SG6 1NH: before 2020SG6 1NP: before 2020SG6 1NR: before 2020SG6 1NT: before 2020SG6 1NU: before 2020SG6 1NW: before 2020SG6 1NX: before 2020SG6 1NY: before 2020SG6 1PF: before 2020SG6 1PH: before 2020SG6 1PJ: before 2020SG6 1PL: before 2020SG6 1PN: before 2020SG6 1PP: before 2020SG6 1PQ: before 2020SG6 1PR: before 2020SG6 1PS: before 2020SG6 1PT: before 2020SG6 1PU: before 2020SG6 1PW: before 2020SG6 1PX: before 2020SG6 1PY: before 2020SG6 1PZ: before 2020SG6 1QA: before 2020SG6 1QB: before 2020SG6 1QD: before 2020SG6 1QE: before 2020SG6 1QF: before 2020SG6 1QG: before 2020SG6 1QL: before 2020SG6 1QP: before 2020SG6 1QQ: before 2020SG6 1QR: before 2020SG6 1QS: before 2020SG6 1QT: before 2020SG6 1QU: before 2020SG6 1QX: before 2020SG6 1QY: before 2020SG6 1QZ: before 2020SG6 1RD: before 2020SG6 1RE: before 2020SG6 1RF: before 2020SG6 1RG: before 2020SG6 1RH: before 2020SG6 1RJ: before 2020SG6 1RL: before 2020SG6 1RN: before 2020SG6 1RP: before 2020SG6 1RQ: before 2020SG6 1RS: before 2020SG6 1RU: before 2020SG6 1RW: before 2020SG6 1RX: before 2020SG6 1RY: before 2020SG6 1RZ: before 2020SG6 1SA: before 2020SG6 1SB: before 2020SG6 1SD: before 2020SG6 1SE: before 2020SG6 1SF: before 2020SG6 1SH: before 2020SG6 1SL: before 2020SG6 1SN: before 2020SG6 1SP: before 2020SG6 1SQ: before 2020SG6 1SU: before 2020SG6 1SW: before 2020SG6 1SX: before 2020SG6 1SZ: before 2020SG6 1TA: before 2020SG6 1TB: before 2020SG6 1TD: before 2020SG6 1TN: before 2020SG6 1TU: before 2020SG6 1TX: before 2020SG6 1TY: before 2020SG6 1TZ: before 2020SG6 1UA: before 2020SG6 1UB: before 2020SG6 1UD: before 2020SG6 1UE: before 2020SG6 1UG: before 2020SG6 1UJ: before 2020SG6 1UP: before 2020SG6 1UW: before 2020SG6 1WB: before 2020SG6 1WG: before 2020SG6 1WH: before 2020SG6 1WL: before 2020SG6 1WT: before 2020SG6 1WU: before 2020SG6 1FU: new since 2020SG6 1WN: new since 2020 Letchworth Map of every postcode in the SG6 1 sector, by new since 2020 Of the 217 postcodes in the SG6 1 sector that ONS places, 2 are new since 2020 and 215 were in use before 2020. Places named: Letchworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Letchworth
  • New since 2020: 2
  • In use before 2020: 215

Of the 217 postcodes in the SG6 1 sector that ONS places, 2 are new since 2020 and 215 were in use before 2020.

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. New since 2020 means it came into use in January 2020 or later. 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; when each came into use: the same directory; 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

The 2 newest postcodes

SG6 1WNNovember 2025SG6 1FUSeptember 2021

What do homes sell for in SG6 1?

Homes in SG6 1 sold for a typical £375,525 in the 12 months to August 2026, across 56 sales, up 11.3% on the 12 months before, HM Land Registry's figures show.

£375,525 typical price, the 12 months to August 2026
£337,500 12 months to August 2025
▲ up 11.3% on the 12 months before
  • Detached £700,000 5 sales
  • Semi-detached £487,000 9 sales
  • Terraced £397,500 24 sales
  • Flat or maisonette £213,500 18 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 SG6 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 SG6 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.

SG6 1AASG6 1ABSG6 1ADSG6 1AESG6 1AGSG6 1AHSG6 1AJSG6 1ALSG6 1ANSG6 1APSG6 1AQSG6 1ARSG6 1ASSG6 1ATSG6 1AWSG6 1AXSG6 1AYSG6 1AZSG6 1BESG6 1BHSG6 1BLSG6 1BPSG6 1BSSG6 1BTSG6 1BUSG6 1BXSG6 1BYSG6 1BZSG6 1DASG6 1DBSG6 1DDSG6 1DESG6 1DFSG6 1DGSG6 1DHSG6 1DJSG6 1DLSG6 1DNSG6 1DPSG6 1DQSG6 1DRSG6 1DSSG6 1DTSG6 1DUSG6 1DWSG6 1DXSG6 1DYSG6 1DZSG6 1EASG6 1EBSG6 1EDSG6 1EFSG6 1EGSG6 1EHSG6 1EJSG6 1ELSG6 1EQSG6 1ETSG6 1EXSG6 1FASG6 1FBSG6 1FDSG6 1FESG6 1FFSG6 1FGSG6 1FHSG6 1FJSG6 1FLSG6 1FNSG6 1FPSG6 1FQSG6 1FRSG6 1FTSG6 1FUSG6 1FWSG6 1FXSG6 1FYSG6 1FZSG6 1GBSG6 1GHSG6 1GJSG6 1GLSG6 1GPSG6 1GQSG6 1GRSG6 1GTSG6 1GUSG6 1HASG6 1HBSG6 1HDSG6 1HESG6 1HGSG6 1HJSG6 1HNSG6 1HPSG6 1HQSG6 1HRSG6 1HUSG6 1HXSG6 1JASG6 1JESG6 1JFSG6 1JGSG6 1JHSG6 1JJSG6 1JSSG6 1JTSG6 1JWSG6 1JXSG6 1JYSG6 1JZSG6 1LASG6 1LBSG6 1LDSG6 1LHSG6 1LJSG6 1LLSG6 1LNSG6 1LPSG6 1LUSG6 1LWSG6 1NASG6 1NDSG6 1NESG6 1NHSG6 1NPSG6 1NRSG6 1NTSG6 1NUSG6 1NWSG6 1NXSG6 1NYSG6 1PFSG6 1PHSG6 1PJSG6 1PLSG6 1PNSG6 1PPSG6 1PQSG6 1PRSG6 1PSSG6 1PTSG6 1PUSG6 1PWSG6 1PXSG6 1PYSG6 1PZSG6 1QASG6 1QBSG6 1QDSG6 1QESG6 1QFSG6 1QGSG6 1QLSG6 1QPSG6 1QQSG6 1QRSG6 1QSSG6 1QTSG6 1QUSG6 1QXSG6 1QYSG6 1QZSG6 1RDSG6 1RESG6 1RFSG6 1RGSG6 1RHSG6 1RJSG6 1RLSG6 1RNSG6 1RPSG6 1RQSG6 1RRSG6 1RSSG6 1RUSG6 1RWSG6 1RXSG6 1RYSG6 1RZSG6 1SASG6 1SBSG6 1SDSG6 1SESG6 1SFSG6 1SHSG6 1SLSG6 1SNSG6 1SPSG6 1SQSG6 1SUSG6 1SWSG6 1SXSG6 1SZSG6 1TASG6 1TBSG6 1TDSG6 1TNSG6 1TUSG6 1TXSG6 1TYSG6 1TZSG6 1UASG6 1UBSG6 1UDSG6 1UESG6 1UGSG6 1UJSG6 1UPSG6 1UWSG6 1WBSG6 1WGSG6 1WHSG6 1WLSG6 1WNSG6 1WTSG6 1WU

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

What council am I in? The council, borough or local authority for a postcode, and the county council where there is one. What ward am I in? The ward for a postcode, with its council, constituency and parish.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.