SG4 0 postcode sector in the SG4 district

SG4 0 is a sector of the SG4 district: every postcode that starts SG4 0. It has 184 postcodes in use, 9 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 SG4 0 sector, by gigabit broadband

Map of every postcode in the SG4 0 sector, by gigabit broadband Of the 184 postcodes in the SG4 0 sector that ONS places, 19 have no home or business that can get gigabit, 17 have some that can, 146 can all get it and 2 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: Hitchin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A505 SG4 0AA: gigabit for allSG4 0AG: gigabit for allSG4 0AH: gigabit for allSG4 0AJ: gigabit for allSG4 0AL: gigabit for allSG4 0AN: gigabit for allSG4 0AQ: gigabit for allSG4 0AS: gigabit for allSG4 0AT: gigabit for allSG4 0AU: gigabit for allSG4 0AZ: gigabit for allSG4 0BA: gigabit for allSG4 0BD: gigabit for allSG4 0BE: gigabit for allSG4 0BF: gigabit for allSG4 0BG: gigabit for allSG4 0BH: gigabit for allSG4 0BL: gigabit for allSG4 0BN: gigabit for allSG4 0BP: gigabit for allSG4 0BQ: gigabit for allSG4 0BT: gigabit for allSG4 0BU: gigabit for allSG4 0BW: gigabit for allSG4 0BX: gigabit for allSG4 0BZ: gigabit for allSG4 0DA: gigabit for allSG4 0DB: gigabit for allSG4 0DH: gigabit for allSG4 0DL: gigabit for allSG4 0DN: gigabit for allSG4 0DP: gigabit for allSG4 0DR: gigabit for allSG4 0DS: gigabit for allSG4 0DU: gigabit for allSG4 0DW: gigabit for allSG4 0EA: gigabit for allSG4 0EB: gigabit for allSG4 0ED: gigabit for allSG4 0EH: gigabit for allSG4 0EJ: gigabit for allSG4 0EL: gigabit for allSG4 0EP: gigabit for allSG4 0ER: gigabit for allSG4 0ES: gigabit for allSG4 0ET: gigabit for allSG4 0EU: gigabit for allSG4 0EX: gigabit for allSG4 0EZ: gigabit for allSG4 0FP: gigabit for allSG4 0FR: gigabit for allSG4 0FS: gigabit for allSG4 0HB: gigabit for allSG4 0HL: gigabit for allSG4 0HN: gigabit for allSG4 0HP: gigabit for allSG4 0HR: gigabit for allSG4 0HS: gigabit for allSG4 0HW: gigabit for allSG4 0HY: gigabit for allSG4 0JB: gigabit for allSG4 0JH: gigabit for allSG4 0JN: gigabit for allSG4 0JP: gigabit for allSG4 0JR: gigabit for allSG4 0JS: gigabit for allSG4 0JW: gigabit for allSG4 0LA: gigabit for allSG4 0LB: gigabit for allSG4 0LE: gigabit for allSG4 0LF: gigabit for allSG4 0LG: gigabit for allSG4 0LJ: gigabit for allSG4 0LL: gigabit for allSG4 0LN: gigabit for allSG4 0LP: gigabit for allSG4 0LQ: gigabit for allSG4 0LR: gigabit for allSG4 0LS: gigabit for allSG4 0LT: gigabit for allSG4 0LW: gigabit for allSG4 0LZ: gigabit for allSG4 0NE: gigabit for allSG4 0NF: gigabit for allSG4 0NG: gigabit for allSG4 0NH: gigabit for allSG4 0NJ: gigabit for allSG4 0NL: gigabit for allSG4 0NN: gigabit for allSG4 0NP: gigabit for allSG4 0NQ: gigabit for allSG4 0NR: gigabit for allSG4 0NS: gigabit for allSG4 0NT: gigabit for allSG4 0NU: gigabit for allSG4 0NW: gigabit for allSG4 0NX: gigabit for allSG4 0NY: gigabit for allSG4 0NZ: gigabit for allSG4 0PA: gigabit for allSG4 0PB: gigabit for allSG4 0PD: gigabit for allSG4 0PE: gigabit for allSG4 0PF: gigabit for allSG4 0PG: gigabit for allSG4 0PH: gigabit for allSG4 0PJ: gigabit for allSG4 0PL: gigabit for allSG4 0PN: gigabit for allSG4 0PP: gigabit for allSG4 0PQ: gigabit for allSG4 0PR: gigabit for allSG4 0PS: gigabit for allSG4 0PT: gigabit for allSG4 0PU: gigabit for allSG4 0PW: gigabit for allSG4 0PX: gigabit for allSG4 0PY: gigabit for allSG4 0PZ: gigabit for allSG4 0QA: gigabit for allSG4 0QB: gigabit for allSG4 0QD: gigabit for allSG4 0QF: gigabit for allSG4 0QG: gigabit for allSG4 0QH: gigabit for allSG4 0QJ: gigabit for allSG4 0QL: gigabit for allSG4 0QN: gigabit for allSG4 0QP: gigabit for allSG4 0QQ: gigabit for allSG4 0QS: gigabit for allSG4 0QT: gigabit for allSG4 0QU: gigabit for allSG4 0QW: gigabit for allSG4 0QZ: gigabit for allSG4 0RA: gigabit for allSG4 0RB: gigabit for allSG4 0RD: gigabit for allSG4 0RE: gigabit for allSG4 0RF: gigabit for allSG4 0RG: gigabit for allSG4 0RH: gigabit for allSG4 0RJ: gigabit for allSG4 0RQ: gigabit for allSG4 0RS: gigabit for allSG4 0TS: gigabit for allSG4 0AP: some gigabitSG4 0AX: some gigabitSG4 0BS: some gigabitSG4 0HX: some gigabitSG4 0JU: some gigabitSG4 0LD: some gigabitSG4 0QE: some gigabitSG4 0QR: some gigabitSG4 0QX: some gigabitSG4 0QY: some gigabitSG4 0SA: some gigabitSG4 0SE: some gigabitSG4 0TJ: some gigabitSG4 0TP: some gigabitSG4 0TW: some gigabitSG4 0TY: some gigabitSG4 0TZ: some gigabitSG4 0AB: no gigabitSG4 0AE: no gigabitSG4 0AF: no gigabitSG4 0AW: no gigabitSG4 0BJ: no gigabitSG4 0JD: no gigabitSG4 0JE: no gigabitSG4 0JG: no gigabitSG4 0JL: no gigabitSG4 0LU: no gigabitSG4 0LX: no gigabitSG4 0RY: no gigabitSG4 0SB: no gigabitSG4 0SL: no gigabitSG4 0SQ: no gigabitSG4 0UB: no gigabitSG4 0UD: no gigabitSG4 0UZ: no gigabitSG4 0JX: no gigabit Hitchin Map of every postcode in the SG4 0 sector, by gigabit broadband Of the 184 postcodes in the SG4 0 sector that ONS places, 19 have no home or business that can get gigabit, 17 have some that can, 146 can all get it and 2 have no Ofcom figure. One postcode lies beyond the edge and is listed under the map. Places named: Hitchin Walsworth, Hitchin Bearton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. Hitchin WalsworthHitchin Bearton
  • No home or business can get gigabit: 19
  • Some can get gigabit: 17
  • Every home and business can get gigabit: 146
  • Ofcom gives no figure: 2

Of the 184 postcodes in the SG4 0 sector that ONS places, 19 have no home or business that can get gigabit, 17 have some that can, 146 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. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

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

19 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.

What do homes sell for in SG4 0?

Homes in SG4 0 sold for a typical £421,500 in the 12 months to September 2026, across 120 sales, HM Land Registry's figures show. The 12 months before gave £419,250 from 164 sales: not a change larger than chance would explain, given which homes happened to sell.

£421,500 typical price, the 12 months to September 2026
£419,250 12 months to September 2025
  • Detached £715,000 12 sales
  • Semi-detached £520,000 41 sales
  • Terraced £392,500 30 sales
  • Flat or maisonette £215,000 37 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 SG4 0. 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 SG4 0

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.

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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