RM20 4 postcode sector in the RM20 district

RM20 4 is a sector of the RM20 district: every postcode that starts RM20 4. It has 58 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 RM20 4 sector, by flood risk

Map of every postcode in the RM20 4 sector, by flood risk Of the 58 postcodes in the RM20 4 sector that ONS places, 1 have a home or business at high risk, 30 are at very low risk only and 27 are not on the Environment Agency's at-risk list. Places named: West Thurrock & South Stifford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A126 RM20 4AB: not on the flood risk listRM20 4BE: not on the flood risk listRM20 4BF: not on the flood risk listRM20 4BH: not on the flood risk listRM20 4BP: not on the flood risk listRM20 4BS: not on the flood risk listRM20 4BT: not on the flood risk listRM20 4BW: not on the flood risk listRM20 4BY: not on the flood risk listRM20 4DP: not on the flood risk listRM20 4DR: not on the flood risk listRM20 4XE: not on the flood risk listRM20 4XG: not on the flood risk listRM20 4XL: not on the flood risk listRM20 4XN: not on the flood risk listRM20 4XT: not on the flood risk listRM20 4XW: not on the flood risk listRM20 4YD: not on the flood risk listRM20 4YE: not on the flood risk listRM20 4YH: not on the flood risk listRM20 4YJ: not on the flood risk listRM20 4YL: not on the flood risk listRM20 4YP: not on the flood risk listRM20 4YR: not on the flood risk listRM20 4YT: not on the flood risk listRM20 4YY: not on the flood risk listRM20 4YZ: not on the flood risk listRM20 4AA: very low flood risk onlyRM20 4AD: very low flood risk onlyRM20 4AE: very low flood risk onlyRM20 4AG: very low flood risk onlyRM20 4AJ: very low flood risk onlyRM20 4AL: very low flood risk onlyRM20 4AN: very low flood risk onlyRM20 4AP: very low flood risk onlyRM20 4AQ: very low flood risk onlyRM20 4AR: very low flood risk onlyRM20 4AS: very low flood risk onlyRM20 4AT: very low flood risk onlyRM20 4AU: very low flood risk onlyRM20 4AW: very low flood risk onlyRM20 4AX: very low flood risk onlyRM20 4AY: very low flood risk onlyRM20 4BA: very low flood risk onlyRM20 4BJ: very low flood risk onlyRM20 4BL: very low flood risk onlyRM20 4BQ: very low flood risk onlyRM20 4BU: very low flood risk onlyRM20 4DB: very low flood risk onlyRM20 4DN: very low flood risk onlyRM20 4EH: very low flood risk onlyRM20 4XB: very low flood risk onlyRM20 4XJ: very low flood risk onlyRM20 4XP: very low flood risk onlyRM20 4XQ: very low flood risk onlyRM20 4XU: very low flood risk onlyRM20 4XX: very low flood risk onlyRM20 4EL: high flood risk West Thurrock & South Stifford Map of every postcode in the RM20 4 sector, by flood risk Of the 58 postcodes in the RM20 4 sector that ONS places, 1 have a home or business at high risk, 30 are at very low risk only and 27 are not on the Environment Agency's at-risk list. Places named: West Thurrock & South Stifford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. West Thurrock & South Stifford
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 30
  • Not on the at-risk list: 27

Of the 58 postcodes in the RM20 4 sector that ONS places, 1 have a home or business at high risk, 30 are at very low risk only and 27 are not on the Environment Agency's at-risk list.

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. Names in italics are council wards: we hold no town or village names here.

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 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

The postcodes at high risk

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

RM20 4EL1 at high risk

What do homes sell for in RM20 4?

Homes in RM20 4 sold for a typical £334,000 in the 12 months to August 2026, across 33 sales, up 7.7% on the 12 months before, HM Land Registry's figures show.

£334,000 typical price, the 12 months to August 2026
£310,000 12 months to August 2025
▲ up 7.7% on the 12 months before
  • Semi-detached 2 sales, too few to price
  • Terraced £340,000 21 sales
  • Flat or maisonette £159,000 10 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 RM20 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 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 RM20 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.

RM20 4AARM20 4ABRM20 4ADRM20 4AERM20 4AGRM20 4AJRM20 4ALRM20 4ANRM20 4APRM20 4AQRM20 4ARRM20 4ASRM20 4ATRM20 4AURM20 4AWRM20 4AXRM20 4AYRM20 4BARM20 4BERM20 4BFRM20 4BHRM20 4BJRM20 4BLRM20 4BPRM20 4BQRM20 4BSRM20 4BTRM20 4BURM20 4BWRM20 4BYRM20 4DBRM20 4DNRM20 4DPRM20 4DRRM20 4EHRM20 4ELRM20 4XBRM20 4XERM20 4XGRM20 4XJRM20 4XLRM20 4XNRM20 4XPRM20 4XQRM20 4XTRM20 4XURM20 4XWRM20 4XXRM20 4YDRM20 4YERM20 4YHRM20 4YJRM20 4YLRM20 4YPRM20 4YRRM20 4YTRM20 4YYRM20 4YZ

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.

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