SO40 4 postcode sector in the SO40 district

SO40 4 is a sector of the SO40 district: every postcode that starts SO40 4. It has 143 postcodes in use, 2 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 SO40 4 sector, by gigabit broadband

Map of every postcode in the SO40 4 sector, by gigabit broadband Of the 143 postcodes in the SO40 4 sector that ONS places, 20 have no home or business that can get gigabit, 34 have some that can, 87 can all get it and 2 have no Ofcom figure. Places named: Marchwood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A326A33A35 SO40 4TU: no Ofcom figureSO40 4ZG: no Ofcom figureSO40 4AA: gigabit for allSO40 4AB: gigabit for allSO40 4AD: gigabit for allSO40 4AE: gigabit for allSO40 4AG: gigabit for allSO40 4AH: gigabit for allSO40 4AJ: gigabit for allSO40 4AL: gigabit for allSO40 4AN: gigabit for allSO40 4AP: gigabit for allSO40 4AQ: gigabit for allSO40 4AR: gigabit for allSO40 4AS: gigabit for allSO40 4AT: gigabit for allSO40 4AW: gigabit for allSO40 4AX: gigabit for allSO40 4BF: gigabit for allSO40 4JY: gigabit for allSO40 4JZ: gigabit for allSO40 4LB: gigabit for allSO40 4LE: gigabit for allSO40 4PA: gigabit for allSO40 4SB: gigabit for allSO40 4SD: gigabit for allSO40 4SE: gigabit for allSO40 4SF: gigabit for allSO40 4SG: gigabit for allSO40 4SH: gigabit for allSO40 4SJ: gigabit for allSO40 4SL: gigabit for allSO40 4SN: gigabit for allSO40 4SQ: gigabit for allSO40 4SR: gigabit for allSO40 4SS: gigabit for allSO40 4ST: gigabit for allSO40 4SU: gigabit for allSO40 4SW: gigabit for allSO40 4SX: gigabit for allSO40 4TS: gigabit for allSO40 4UB: gigabit for allSO40 4UF: gigabit for allSO40 4UP: gigabit for allSO40 4UU: gigabit for allSO40 4UW: gigabit for allSO40 4UY: gigabit for allSO40 4WA: gigabit for allSO40 4WN: gigabit for allSO40 4WS: gigabit for allSO40 4WX: gigabit for allSO40 4WY: gigabit for allSO40 4WZ: gigabit for allSO40 4XA: gigabit for allSO40 4XB: gigabit for allSO40 4XD: gigabit for allSO40 4XE: gigabit for allSO40 4XF: gigabit for allSO40 4XG: gigabit for allSO40 4XQ: gigabit for allSO40 4XW: gigabit for allSO40 4XX: gigabit for allSO40 4XY: gigabit for allSO40 4XZ: gigabit for allSO40 4YA: gigabit for allSO40 4YD: gigabit for allSO40 4YE: gigabit for allSO40 4YF: gigabit for allSO40 4YG: gigabit for allSO40 4YH: gigabit for allSO40 4YL: gigabit for allSO40 4YN: gigabit for allSO40 4YP: gigabit for allSO40 4YQ: gigabit for allSO40 4YR: gigabit for allSO40 4YS: gigabit for allSO40 4YT: gigabit for allSO40 4YU: gigabit for allSO40 4YW: gigabit for allSO40 4YX: gigabit for allSO40 4YY: gigabit for allSO40 4YZ: gigabit for allSO40 4ZH: gigabit for allSO40 4AY: gigabit for allSO40 4JU: gigabit for allSO40 4PB: some gigabitSO40 4PD: some gigabitSO40 4TE: some gigabitSO40 4TW: some gigabitSO40 4UA: some gigabitSO40 4UD: some gigabitSO40 4UH: some gigabitSO40 4UL: some gigabitSO40 4UN: some gigabitSO40 4UQ: some gigabitSO40 4US: some gigabitSO40 4UT: some gigabitSO40 4UZ: some gigabitSO40 4WB: some gigabitSO40 4WE: some gigabitSO40 4WG: some gigabitSO40 4WH: some gigabitSO40 4WJ: some gigabitSO40 4WL: some gigabitSO40 4WP: some gigabitSO40 4WQ: some gigabitSO40 4WR: some gigabitSO40 4WT: some gigabitSO40 4WU: some gigabitSO40 4XH: some gigabitSO40 4XJ: some gigabitSO40 4XL: some gigabitSO40 4XN: some gigabitSO40 4XR: some gigabitSO40 4XS: some gigabitSO40 4XT: some gigabitSO40 4XU: some gigabitSO40 4YB: some gigabitSO40 4YJ: some gigabitSO40 4AF: no gigabitSO40 4AZ: no gigabitSO40 4BD: no gigabitSO40 4BE: no gigabitSO40 4BJ: no gigabitSO40 4BL: no gigabitSO40 4BX: no gigabitSO40 4BY: no gigabitSO40 4DA: no gigabitSO40 4JW: no gigabitSO40 4UE: no gigabitSO40 4UG: no gigabitSO40 4UJ: no gigabitSO40 4UR: no gigabitSO40 4UX: no gigabitSO40 4WD: no gigabitSO40 4WF: no gigabitSO40 4WW: no gigabitSO40 4ZD: no gigabitSO40 4ZE: no gigabit Marchwood Map of every postcode in the SO40 4 sector, by gigabit broadband Of the 143 postcodes in the SO40 4 sector that ONS places, 20 have no home or business that can get gigabit, 34 have some that can, 87 can all get it and 2 have no Ofcom figure. Places named: Marchwood. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A33 Marchwood
  • No home or business can get gigabit: 20
  • Some can get gigabit: 34
  • Every home and business can get gigabit: 87
  • Ofcom gives no figure: 2

Of the 143 postcodes in the SO40 4 sector that ONS places, 20 have no home or business that can get gigabit, 34 have some that can, 87 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.

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

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

SO40 4AFSO40 4AZSO40 4BDSO40 4BESO40 4BJSO40 4BLSO40 4BXSO40 4BYSO40 4DASO40 4JWSO40 4UESO40 4UG

What do homes sell for in SO40 4?

Homes in SO40 4 sold for a typical £320,000 in the 12 months to September 2026, across 57 sales, HM Land Registry's figures show. The 12 months before gave £341,250 from 78 sales: not a change larger than chance would explain, given which homes happened to sell.

£320,000 typical price, the 12 months to September 2026
£341,250 12 months to September 2025
  • Detached £476,250 14 sales
  • Semi-detached £365,000 10 sales
  • Terraced £302,500 20 sales
  • Flat or maisonette £173,000 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 SO40 4. 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 SO40 4

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.

SO40 4AASO40 4ABSO40 4ADSO40 4AESO40 4AFSO40 4AGSO40 4AHSO40 4AJSO40 4ALSO40 4ANSO40 4APSO40 4AQSO40 4ARSO40 4ASSO40 4ATSO40 4AUSO40 4AWSO40 4AXSO40 4AYSO40 4AZSO40 4BDSO40 4BESO40 4BFSO40 4BJSO40 4BLSO40 4BXSO40 4BYSO40 4DASO40 4JUSO40 4JWSO40 4JXSO40 4JYSO40 4JZSO40 4LBSO40 4LESO40 4PASO40 4PBSO40 4PDSO40 4SBSO40 4SDSO40 4SESO40 4SFSO40 4SGSO40 4SHSO40 4SJSO40 4SLSO40 4SNSO40 4SQSO40 4SRSO40 4SSSO40 4STSO40 4SUSO40 4SWSO40 4SXSO40 4SYSO40 4TESO40 4TSSO40 4TUSO40 4TWSO40 4UASO40 4UBSO40 4UDSO40 4UESO40 4UFSO40 4UGSO40 4UHSO40 4UJSO40 4ULSO40 4UNSO40 4UPSO40 4UQSO40 4URSO40 4USSO40 4UTSO40 4UUSO40 4UWSO40 4UXSO40 4UYSO40 4UZSO40 4WASO40 4WBSO40 4WDSO40 4WESO40 4WFSO40 4WGSO40 4WHSO40 4WJSO40 4WLSO40 4WNSO40 4WPSO40 4WQSO40 4WRSO40 4WSSO40 4WTSO40 4WUSO40 4WWSO40 4WXSO40 4WYSO40 4WZSO40 4XASO40 4XBSO40 4XDSO40 4XESO40 4XFSO40 4XGSO40 4XHSO40 4XJSO40 4XLSO40 4XNSO40 4XPSO40 4XQSO40 4XRSO40 4XSSO40 4XTSO40 4XUSO40 4XWSO40 4XXSO40 4XYSO40 4XZSO40 4YASO40 4YBSO40 4YDSO40 4YESO40 4YFSO40 4YGSO40 4YHSO40 4YJSO40 4YLSO40 4YNSO40 4YPSO40 4YQSO40 4YRSO40 4YSSO40 4YTSO40 4YUSO40 4YWSO40 4YXSO40 4YYSO40 4YZSO40 4ZDSO40 4ZESO40 4ZGSO40 4ZH

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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