RM20 postcode district: Chafford Hundred, West Thurrock and Purfleet-on-Thames and around

RM20 is a postcode district in England, with 161 postcodes in use in 4 sectors. It has postcodes in Chafford Hundred, West Thurrock and Purfleet-on-Thames and Grays. Its council is Thurrock.

Postcodes in use
161
Sectors
4
Council
Thurrock
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in RM20, by flood risk

Map of every postcode in RM20, by flood risk Of the 161 postcodes in RM20 that ONS places, 1 have a home or business at high risk, 68 are at very low risk only and 92 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 500 m. A126A282A1090 RM20 1TX: not on the flood risk listRM20 1WL: not on the flood risk listRM20 1WN: not on the flood risk listRM20 2AB: not on the flood risk listRM20 2AD: not on the flood risk listRM20 2ZF: not on the flood risk listRM20 2ZG: not on the flood risk listRM20 2ZL: not on the flood risk listRM20 2ZN: not on the flood risk listRM20 2ZP: not on the flood risk listRM20 2ZQ: not on the flood risk listRM20 2ZS: not on the flood risk listRM20 2ZW: not on the flood risk listRM20 3AW: not on the flood risk listRM20 3AX: not on the flood risk listRM20 3BB: not on the flood risk listRM20 3BD: not on the flood risk listRM20 3BF: not on the flood risk listRM20 3BH: not on the flood risk listRM20 3BN: not on the flood risk listRM20 3BQ: not on the flood risk listRM20 3BS: not on the flood risk listRM20 3BT: not on the flood risk listRM20 3BU: not on the flood risk listRM20 3BW: not on the flood risk listRM20 3BX: not on the flood risk listRM20 3BY: not on the flood risk listRM20 3DA: not on the flood risk listRM20 3DB: not on the flood risk listRM20 3DD: not on the flood risk listRM20 3DE: not on the flood risk listRM20 3DF: not on the flood risk listRM20 3DG: not on the flood risk listRM20 3DH: not on the flood risk listRM20 3DJ: not on the flood risk listRM20 3EH: not on the flood risk listRM20 3FB: not on the flood risk listRM20 3FZ: not on the flood risk listRM20 3HB: not on the flood risk listRM20 3HP: not on the flood risk listRM20 3HT: not on the flood risk listRM20 3JB: not on the flood risk listRM20 3JD: not on the flood risk listRM20 3JE: not on the flood risk listRM20 3JF: not on the flood risk listRM20 3JG: not on the flood risk listRM20 3JH: not on the flood risk listRM20 3JJ: not on the flood risk listRM20 3JL: not on the flood risk listRM20 3JP: not on the flood risk listRM20 3JR: not on the flood risk listRM20 3JS: not on the flood risk listRM20 3LD: not on the flood risk listRM20 3LJ: not on the flood risk listRM20 3LP: not on the flood risk listRM20 3LX: not on the flood risk listRM20 3WD: not on the flood risk listRM20 3WE: not on the flood risk listRM20 3WJ: not on the flood risk listRM20 3WY: not on the flood risk listRM20 3WZ: not on the flood risk listRM20 3XD: not on the flood risk listRM20 3ZP: not on the flood risk listRM20 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 3AA: very low flood risk onlyRM20 3AD: very low flood risk onlyRM20 3AE: very low flood risk onlyRM20 3AF: very low flood risk onlyRM20 3AG: very low flood risk onlyRM20 3AJ: very low flood risk onlyRM20 3AL: very low flood risk onlyRM20 3AN: very low flood risk onlyRM20 3AP: very low flood risk onlyRM20 3AQ: very low flood risk onlyRM20 3AR: very low flood risk onlyRM20 3AS: very low flood risk onlyRM20 3AT: very low flood risk onlyRM20 3AU: very low flood risk onlyRM20 3BA: very low flood risk onlyRM20 3BJ: very low flood risk onlyRM20 3BP: very low flood risk onlyRM20 3ED: very low flood risk onlyRM20 3EE: very low flood risk onlyRM20 3EF: very low flood risk onlyRM20 3EG: very low flood risk onlyRM20 3FH: very low flood risk onlyRM20 3FJ: very low flood risk onlyRM20 3FN: very low flood risk onlyRM20 3HA: very low flood risk onlyRM20 3HD: very low flood risk onlyRM20 3HL: very low flood risk onlyRM20 3HX: very low flood risk onlyRM20 3JA: very low flood risk onlyRM20 3JQ: very low flood risk onlyRM20 3JT: very low flood risk onlyRM20 3LG: very low flood risk onlyRM20 3LH: very low flood risk onlyRM20 3LL: very low flood risk onlyRM20 3LU: very low flood risk onlyRM20 3NL: very low flood risk onlyRM20 3NR: very low flood risk onlyRM20 3ZD: very low flood risk onlyRM20 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 RM20, by flood risk Of the 161 postcodes in RM20 that ONS places, 1 have a home or business at high risk, 68 are at very low risk only and 92 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 500 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: 68
  • Not on the at-risk list: 92

Of the 161 postcodes in RM20 that ONS places, 1 have a home or business at high risk, 68 are at very low risk only and 92 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. 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.

The middle of its postcodes: latitude 51.4785, longitude 0.2845. Open this area on OpenStreetMap

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 broadband can you get in RM20?

Ofcom reports on 157 of the 161 postcodes in RM20. At 118 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit118 of 157
Postcodes where every home can get superfast130 of 157
Postcodes where some cannot get decent broadband2 of 157

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is RM20 at risk of flooding?

69 of the 161 postcodes in RM20 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 1 home or business in an area at high or medium risk.

Homes and businesses in an area at risk, at 69 of 161 postcodes High: 1Very low: 1,832

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in RM20?

Homes in RM20 sold for a typical £299,250 in the 12 months to August 2026, across 72 sales, up 0.8% on the 12 months before, HM Land Registry's figures show.

£299,250 typical price, the 12 months to August 2026
£297,000 12 months to August 2025
▲ up 0.8% on the 12 months before
  • Semi-detached £401,000 10 sales
  • Terraced £337,000 33 sales
  • Flat or maisonette £230,000 29 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

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

Pick a sector, then a postcode. A sector is the district plus the next digit.

RM20 13 postcodesRM20 212 postcodesRM20 388 postcodesRM20 458 postcodes
UK postcode format explained

Places in RM20

Towns and villages with postcodes in RM20, and how many each has here.

Chafford Hundred, West Thurrock and Purfleet-on-Thames postcodes,155Grays postcodes,2

Who covers RM20

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Thurrock161

Police force areas

  • Essex161

Next to RM20

RM19 postcode district All RM districts Chafford Hundred, West Thurrock and Purfleet-on-Thames postcodes

"Next to" is by number: the district before RM20 in the RM area.

Check a postcode

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