SG6 3 postcode sector in the SG6 district

SG6 3 is a sector of the SG6 district: every postcode that starts SG6 3. It has 195 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 3 sector, by gigabit broadband

Map of every postcode in the SG6 3 sector, by gigabit broadband Of the 195 postcodes in the SG6 3 sector that ONS places, 53 have no home or business that can get gigabit, 23 have some that can, 112 can all get it and 7 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 37 postcodes without gigabit; 5 postcodes without gigabit. One postcode lies beyond the edge and is listed under the map. Places named: Letchworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A505 SG6 3DW: no Ofcom figureSG6 3JF: no Ofcom figureSG6 3SA: no Ofcom figureSG6 3TT: no Ofcom figureSG6 3AQ: gigabit for allSG6 3AY: gigabit for allSG6 3EP: gigabit for allSG6 3HD: gigabit for allSG6 3HE: gigabit for allSG6 3HF: gigabit for allSG6 3HG: gigabit for allSG6 3HH: gigabit for allSG6 3HJ: gigabit for allSG6 3HQ: gigabit for allSG6 3HR: gigabit for allSG6 3HT: gigabit for allSG6 3HU: gigabit for allSG6 3HX: gigabit for allSG6 3HY: gigabit for allSG6 3HZ: gigabit for allSG6 3JA: gigabit for allSG6 3JB: gigabit for allSG6 3JD: gigabit for allSG6 3JE: gigabit for allSG6 3JH: gigabit for allSG6 3JJ: gigabit for allSG6 3JN: gigabit for allSG6 3JP: gigabit for allSG6 3JR: gigabit for allSG6 3JS: gigabit for allSG6 3JT: gigabit for allSG6 3JU: gigabit for allSG6 3JW: gigabit for allSG6 3JX: gigabit for allSG6 3JY: gigabit for allSG6 3LB: gigabit for allSG6 3LD: gigabit for allSG6 3LE: gigabit for allSG6 3LF: gigabit for allSG6 3LP: gigabit for allSG6 3LR: gigabit for allSG6 3LS: gigabit for allSG6 3LT: gigabit for allSG6 3LU: gigabit for allSG6 3LW: gigabit for allSG6 3LX: gigabit for allSG6 3NW: gigabit for allSG6 3NX: gigabit for allSG6 3PA: gigabit for allSG6 3PH: gigabit for allSG6 3PJ: gigabit for allSG6 3PL: gigabit for allSG6 3PN: gigabit for allSG6 3PQ: gigabit for allSG6 3PT: gigabit for allSG6 3PU: gigabit for allSG6 3PW: gigabit for allSG6 3PX: gigabit for allSG6 3PY: gigabit for allSG6 3PZ: gigabit for allSG6 3QA: gigabit for allSG6 3QB: gigabit for allSG6 3QD: gigabit for allSG6 3QJ: gigabit for allSG6 3QL: gigabit for allSG6 3QP: gigabit for allSG6 3QR: gigabit for allSG6 3QS: gigabit for allSG6 3QT: gigabit for allSG6 3QU: gigabit for allSG6 3QW: gigabit for allSG6 3QX: gigabit for allSG6 3QY: gigabit for allSG6 3QZ: gigabit for allSG6 3RA: gigabit for allSG6 3RB: gigabit for allSG6 3RD: gigabit for allSG6 3RE: gigabit for allSG6 3RF: gigabit for allSG6 3RG: gigabit for allSG6 3RH: gigabit for allSG6 3RJ: gigabit for allSG6 3RL: gigabit for allSG6 3RN: gigabit for allSG6 3RP: gigabit for allSG6 3RQ: gigabit for allSG6 3RR: gigabit for allSG6 3RS: gigabit for allSG6 3RT: gigabit for allSG6 3RU: gigabit for allSG6 3RW: gigabit for allSG6 3SD: gigabit for allSG6 3SE: gigabit for allSG6 3SF: gigabit for allSG6 3SG: gigabit for allSG6 3SH: gigabit for allSG6 3SJ: gigabit for allSG6 3SL: gigabit for allSG6 3SP: gigabit for allSG6 3SQ: gigabit for allSG6 3SR: gigabit for allSG6 3SS: gigabit for allSG6 3ST: gigabit for allSG6 3TG: gigabit for allSG6 3TP: gigabit for allSG6 3TU: gigabit for allSG6 3TX: gigabit for allSG6 3TY: gigabit for allSG6 3TZ: gigabit for allSG6 3UA: gigabit for allSG6 3UB: gigabit for allSG6 3UD: gigabit for allSG6 3UE: gigabit for allSG6 3UF: gigabit for allSG6 3UG: gigabit for allSG6 3XY: gigabit for allSG6 3BE: some gigabitSG6 3BQ: some gigabitSG6 3DE: some gigabitSG6 3DG: some gigabitSG6 3DN: some gigabitSG6 3DU: some gigabitSG6 3EA: some gigabitSG6 3ED: some gigabitSG6 3EF: some gigabitSG6 3GZ: some gigabitSG6 3HL: some gigabitSG6 3HS: some gigabitSG6 3HW: some gigabitSG6 3LL: some gigabitSG6 3LY: some gigabitSG6 3NB: some gigabitSG6 3ND: some gigabitSG6 3NH: some gigabitSG6 3PR: some gigabitSG6 3QN: some gigabitSG6 3SB: some gigabitSG6 3TQ: some gigabitSG6 3TR: some gigabitSG6 3AA: no gigabitSG6 3AE: no gigabitSG6 3AL: no gigabitSG6 3AN: no gigabitSG6 3AR: no gigabitSG6 3AU: no gigabitSG6 3AW: no gigabitSG6 3AZ: no gigabitSG6 3BA: no gigabitSG6 3BB: no gigabitSG6 3BF: no gigabitSG6 3BJ: no gigabitSG6 3BL: no gigabitSG6 3BX: no gigabitSG6 3BY: no gigabitSG6 3DA: no gigabitSG6 3DD: no gigabitSG6 3DL: no gigabitSG6 3DP: no gigabitSG6 3DZ: no gigabitSG6 3EB: no gigabitSG6 3EE: no gigabitSG6 3EG: no gigabitSG6 3EJ: no gigabitSG6 3EL: no gigabitSG6 3EN: no gigabitSG6 3EQ: no gigabitSG6 3ER: no gigabitSG6 3ES: no gigabitSG6 3ET: no gigabitSG6 3EU: no gigabitSG6 3EW: no gigabitSG6 3GY: no gigabitSG6 3JZ: no gigabitSG6 3LN: no gigabitSG6 3NA: no gigabitSG6 3NE: no gigabitSG6 3NF: no gigabitSG6 3NG: no gigabitSG6 3NJ: no gigabitSG6 3NL: no gigabitSG6 3NN: no gigabitSG6 3NP: no gigabitSG6 3NQ: no gigabitSG6 3NR: no gigabitSG6 3NZ: no gigabitSG6 3PF: no gigabitSG6 3TA: no gigabitSG6 3TB: no gigabitSG6 3TH: no gigabitSG6 3TS: no gigabitSG6 3WA: no gigabitSG6 3XU: no gigabit Letchworth 37 postcodes without gigabit, outlined: this goes to SG6 3EB, the one nearest the middle of them37 postcodes without gigabit5 postcodes without gigabit, outlined: this goes to SG6 3NL, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in the SG6 3 sector, by gigabit broadband Of the 195 postcodes in the SG6 3 sector that ONS places, 53 have no home or business that can get gigabit, 23 have some that can, 112 can all get it and 7 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 37 postcodes without gigabit; 5 postcodes without gigabit. One postcode lies beyond the edge and is listed under the map. Places named: Letchworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. Letchworth
  • No home or business can get gigabit: 53
  • Some can get gigabit: 23
  • Every home and business can get gigabit: 112
  • Ofcom gives no figure: 7
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 195 postcodes in the SG6 3 sector that ONS places, 53 have no home or business that can get gigabit, 23 have some that can, 112 can all get it and 7 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.

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.

Postcodes without gigabit

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

Further out, not drawn

This postcode lies well apart from the rest, so the map is drawn without it to show the rest closer; it is in every count.

Where the postcodes without gigabit lie together

What do homes sell for in SG6 3?

Homes in SG6 3 sold for a typical £485,000 in the 12 months to September 2026, across 61 sales, HM Land Registry's figures show. The 12 months before gave £450,000 from 82 sales: not a change larger than chance would explain, given which homes happened to sell.

£485,000 typical price, the 12 months to September 2026
£450,000 12 months to September 2025
  • Detached £700,000 27 sales
  • Semi-detached £600,000 9 sales
  • Terraced £392,500 12 sales
  • Flat or maisonette £276,250 13 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 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 October 2026.

Postcodes in SG6 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.

SG6 3AASG6 3AESG6 3ALSG6 3ANSG6 3AQSG6 3ARSG6 3AUSG6 3AWSG6 3AXSG6 3AYSG6 3AZSG6 3BASG6 3BBSG6 3BESG6 3BFSG6 3BJSG6 3BLSG6 3BQSG6 3BXSG6 3BYSG6 3DASG6 3DDSG6 3DESG6 3DGSG6 3DLSG6 3DNSG6 3DPSG6 3DUSG6 3DWSG6 3DZSG6 3EASG6 3EBSG6 3EDSG6 3EESG6 3EFSG6 3EGSG6 3EJSG6 3ELSG6 3ENSG6 3EPSG6 3EQSG6 3ERSG6 3ESSG6 3ETSG6 3EUSG6 3EWSG6 3GYSG6 3GZSG6 3HDSG6 3HESG6 3HFSG6 3HGSG6 3HHSG6 3HJSG6 3HLSG6 3HQSG6 3HRSG6 3HSSG6 3HTSG6 3HUSG6 3HWSG6 3HXSG6 3HYSG6 3HZSG6 3JASG6 3JBSG6 3JDSG6 3JESG6 3JFSG6 3JHSG6 3JJSG6 3JNSG6 3JPSG6 3JRSG6 3JSSG6 3JTSG6 3JUSG6 3JWSG6 3JXSG6 3JYSG6 3JZSG6 3LBSG6 3LDSG6 3LESG6 3LFSG6 3LLSG6 3LNSG6 3LPSG6 3LRSG6 3LSSG6 3LTSG6 3LUSG6 3LWSG6 3LXSG6 3LYSG6 3NASG6 3NBSG6 3NDSG6 3NESG6 3NFSG6 3NGSG6 3NHSG6 3NJSG6 3NLSG6 3NNSG6 3NPSG6 3NQSG6 3NRSG6 3NWSG6 3NXSG6 3NZSG6 3PASG6 3PFSG6 3PHSG6 3PJSG6 3PLSG6 3PNSG6 3PQSG6 3PRSG6 3PTSG6 3PUSG6 3PWSG6 3PXSG6 3PYSG6 3PZSG6 3QASG6 3QBSG6 3QDSG6 3QJSG6 3QLSG6 3QNSG6 3QPSG6 3QRSG6 3QSSG6 3QTSG6 3QUSG6 3QWSG6 3QXSG6 3QYSG6 3QZSG6 3RASG6 3RBSG6 3RDSG6 3RESG6 3RFSG6 3RGSG6 3RHSG6 3RJSG6 3RLSG6 3RNSG6 3RPSG6 3RQSG6 3RRSG6 3RSSG6 3RTSG6 3RUSG6 3RWSG6 3SASG6 3SBSG6 3SDSG6 3SESG6 3SFSG6 3SGSG6 3SHSG6 3SJSG6 3SLSG6 3SPSG6 3SQSG6 3SRSG6 3SSSG6 3STSG6 3TASG6 3TBSG6 3TGSG6 3THSG6 3TPSG6 3TQSG6 3TRSG6 3TSSG6 3TTSG6 3TUSG6 3TXSG6 3TYSG6 3TZSG6 3UASG6 3UBSG6 3UDSG6 3UESG6 3UFSG6 3UGSG6 3WASG6 3WXSG6 3XUSG6 3XYSG6 3ZU

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026. Postcodes that have ended are not listed.

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.

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Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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