CM0 postcode district: Burnham-on-Crouch and around, Essex

CM0 is a postcode district in Essex, with 564 postcodes in use in 2 sectors. It has postcodes in Burnham-on-Crouch and Southminster. Its council is Maldon.

Postcodes in use
564
Sectors
2
Council
Maldon
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 CM0, by flood risk

Map of every postcode in CM0, by flood risk Of the 564 postcodes in CM0 that ONS places, 43 have a home or business at high risk, 4 are at medium risk at worst, 17 are at low risk at worst, 70 are at very low risk only and 430 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Burnham-on-Crouch, Southminster. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. CM0 7AA: not on the flood risk listCM0 7AB: not on the flood risk listCM0 7AD: not on the flood risk listCM0 7AE: not on the flood risk listCM0 7AF: not on the flood risk listCM0 7AG: not on the flood risk listCM0 7AH: not on the flood risk listCM0 7AJ: not on the flood risk listCM0 7AL: not on the flood risk listCM0 7AN: not on the flood risk listCM0 7AQ: not on the flood risk listCM0 7AT: not on the flood risk listCM0 7AX: not on the flood risk listCM0 7AY: not on the flood risk listCM0 7AZ: not on the flood risk listCM0 7BA: not on the flood risk listCM0 7BE: not on the flood risk listCM0 7BF: not on the flood risk listCM0 7BH: not on the flood risk listCM0 7BJ: not on the flood risk listCM0 7BL: not on the flood risk listCM0 7BN: not on the flood risk listCM0 7BP: not on the flood risk listCM0 7BQ: not on the flood risk listCM0 7BS: not on the flood risk listCM0 7BT: not on the flood risk listCM0 7BW: not on the flood risk listCM0 7BY: not on the flood risk listCM0 7DA: not on the flood risk listCM0 7DF: not on the flood risk listCM0 7DG: not on the flood risk listCM0 7DH: not on the flood risk listCM0 7DJ: not on the flood risk listCM0 7DL: not on the flood risk listCM0 7DN: not on the flood risk listCM0 7DQ: not on the flood risk listCM0 7DR: not on the flood risk listCM0 7DS: not on the flood risk listCM0 7DT: not on the flood risk listCM0 7DU: not on the flood risk listCM0 7DW: not on the flood risk listCM0 7DX: not on the flood risk listCM0 7DY: not on the flood risk listCM0 7DZ: not on the flood risk listCM0 7EA: not on the flood risk listCM0 7EB: not on the flood risk listCM0 7EF: not on the flood risk listCM0 7EG: not on the flood risk listCM0 7EH: not on the flood risk listCM0 7EJ: not on the flood risk listCM0 7EL: not on the flood risk listCM0 7ER: not on the flood risk listCM0 7ES: not on the flood risk listCM0 7ET: not on the flood risk listCM0 7EU: not on the flood risk listCM0 7EW: not on the flood risk listCM0 7EX: not on the flood risk listCM0 7EY: not on the flood risk listCM0 7FB: not on the flood risk listCM0 7FE: not on the flood risk listCM0 7FG: not on the flood risk listCM0 7FH: not on the flood risk listCM0 7FJ: not on the flood risk listCM0 7FL: not on the flood risk listCM0 7FP: not on the flood risk listCM0 7FY: not on the flood risk listCM0 7GD: not on the flood risk listCM0 7GE: not on the flood risk listCM0 7GJ: not on the flood risk listCM0 7GP: not on the flood risk listCM0 7GS: not on the flood risk listCM0 7GX: not on the flood risk listCM0 7GY: not on the flood risk listCM0 7GZ: not on the flood risk listCM0 7HB: not on the flood risk listCM0 7HE: not on the flood risk listCM0 7HH: not on the flood risk listCM0 7HJ: not on the flood risk listCM0 7HN: not on the flood risk listCM0 7HP: not on the flood risk listCM0 7HQ: not on the flood risk listCM0 7HS: not on the flood risk listCM0 7HT: not on the flood risk listCM0 7HU: not on the flood risk listCM0 7HX: not on the flood risk listCM0 7JA: not on the flood risk listCM0 7JE: not on the flood risk listCM0 7JF: not on the flood risk listCM0 7JL: not on the flood risk listCM0 7JP: not on the flood risk listCM0 7JR: not on the flood risk listCM0 7JS: not on the flood risk listCM0 7JT: not on the flood risk listCM0 7JU: not on the flood risk listCM0 7JW: not on the flood risk listCM0 7JY: not on the flood risk listCM0 7LA: not on the flood risk listCM0 7LB: not on the flood risk listCM0 7LD: not on the flood risk listCM0 7LE: not on the flood risk listCM0 7LF: not on the flood risk listCM0 7LG: not on the flood risk listCM0 7LH: not on the flood risk listCM0 7LJ: not on the flood risk listCM0 7LL: not on the flood risk listCM0 7LN: not on the flood risk listCM0 7LP: not on the flood risk listCM0 7LR: not on the flood risk listCM0 7LW: not on the flood risk listCM0 7LX: not on the flood risk listCM0 7NX: not on the flood risk listCM0 7NY: not on the flood risk listCM0 7NZ: not on the flood risk listCM0 7PB: not on the flood risk listCM0 7PE: not on the flood risk listCM0 7PF: not on the flood risk listCM0 7PJ: not on the flood risk listCM0 7PL: not on the flood risk listCM0 7PP: not on the flood risk listCM0 7PR: not on the flood risk listCM0 7PS: not on the flood risk listCM0 7PT: not on the flood risk listCM0 7PU: not on the flood risk listCM0 7PX: not on the flood risk listCM0 7PY: not on the flood risk listCM0 7QA: not on the flood risk listCM0 7QD: not on the flood risk listCM0 7QE: not on the flood risk listCM0 7QF: not on the flood risk listCM0 7QG: not on the flood risk listCM0 7QH: not on the flood risk listCM0 7QJ: not on the flood risk listCM0 7QN: not on the flood risk listCM0 7QP: not on the flood risk listCM0 7QS: not on the flood risk listCM0 7QT: not on the flood risk listCM0 7QW: not on the flood risk listCM0 7RD: not on the flood risk listCM0 7RE: not on the flood risk listCM0 7RH: not on the flood risk listCM0 7RJ: not on the flood risk listCM0 7RQ: not on the flood risk listCM0 7RR: not on the flood risk listCM0 7RT: not on the flood risk listCM0 7RZ: not on the flood risk listCM0 7SA: not on the flood risk listCM0 7SB: not on the flood risk listCM0 7SD: not on the flood risk listCM0 7SE: not on the flood risk listCM0 7SG: not on the flood risk listCM0 7SH: not on the flood risk listCM0 7SJ: not on the flood risk listCM0 7SL: not on the flood risk listCM0 7SP: not on the flood risk listCM0 7SR: not on the flood risk listCM0 7SS: not on the flood risk listCM0 7ST: not on the flood risk listCM0 7SU: not on the flood risk listCM0 7SW: not on the flood risk listCM0 7SX: not on the flood risk listCM0 7SY: not on the flood risk listCM0 7SZ: not on the flood risk listCM0 7TA: not on the flood risk listCM0 7TD: not on the flood risk listCM0 7TE: not on the flood risk listCM0 7TG: not on the flood risk listCM0 7TH: not on the flood risk listCM0 7TL: not on the flood risk listCM0 7TR: not on the flood risk listCM0 7TS: not on the flood risk listCM0 7TT: not on the flood risk listCM0 7TW: not on the flood risk listCM0 7UA: not on the flood risk listCM0 7UB: not on the flood risk listCM0 7UD: not on the flood risk listCM0 7UE: not on the flood risk listCM0 7UF: not on the flood risk listCM0 7UG: not on the flood risk listCM0 7UH: not on the flood risk listCM0 7UJ: not on the flood risk listCM0 7UL: not on the flood risk listCM0 7UN: not on the flood risk listCM0 7UQ: not on the flood risk listCM0 7US: not on the flood risk listCM0 7XB: not on the flood risk listCM0 7YG: not on the flood risk listCM0 7YL: not on the flood risk listCM0 8AE: not on the flood risk listCM0 8BG: not on the flood risk listCM0 8BL: not on the flood risk listCM0 8BS: not on the flood risk listCM0 8BW: not on the flood risk listCM0 8BX: not on the flood risk listCM0 8BY: not on the flood risk listCM0 8BZ: not on the flood risk listCM0 8DA: not on the flood risk listCM0 8DB: not on the flood risk listCM0 8DD: not on the flood risk listCM0 8DE: not on the flood risk listCM0 8DF: not on the flood risk listCM0 8DH: not on the flood risk listCM0 8DL: not on the flood risk listCM0 8DN: not on the flood risk listCM0 8DQ: not on the flood risk listCM0 8DS: not on the flood risk listCM0 8DU: not on the flood risk listCM0 8DW: not on the flood risk listCM0 8DX: not on the flood risk listCM0 8DZ: not on the flood risk listCM0 8EB: not on the flood risk listCM0 8ED: not on the flood risk listCM0 8EE: not on the flood risk listCM0 8EF: not on the flood risk listCM0 8EH: not on the flood risk listCM0 8EN: not on the flood risk listCM0 8EP: not on the flood risk listCM0 8ES: not on the flood risk listCM0 8ET: not on the flood risk listCM0 8EW: not on the flood risk listCM0 8FD: not on the flood risk listCM0 8FE: not on the flood risk listCM0 8FF: not on the flood risk listCM0 8FG: not on the flood risk listCM0 8FH: not on the flood risk listCM0 8FL: not on the flood risk listCM0 8FP: not on the flood risk listCM0 8FQ: not on the flood risk listCM0 8FR: not on the flood risk listCM0 8FS: not on the flood risk listCM0 8FT: not on the flood risk listCM0 8FW: not on the flood risk listCM0 8FX: not on the flood risk listCM0 8FY: not on the flood risk listCM0 8FZ: not on the flood risk listCM0 8GF: not on the flood risk listCM0 8GJ: not on the flood risk listCM0 8GP: not on the flood risk listCM0 8GQ: not on the flood risk listCM0 8GR: not on the flood risk listCM0 8GT: not on the flood risk listCM0 8GU: not on the flood risk listCM0 8GW: not on the flood risk listCM0 8GY: not on the flood risk listCM0 8HF: not on the flood risk listCM0 8HZ: not on the flood risk listCM0 8JE: not on the flood risk listCM0 8JF: not on the flood risk listCM0 8JJ: not on the flood risk listCM0 8JN: not on the flood risk listCM0 8JP: not on the flood risk listCM0 8JW: not on the flood risk listCM0 8LE: not on the flood risk listCM0 8LG: not on the flood risk listCM0 8LH: not on the flood risk listCM0 8LJ: not on the flood risk listCM0 8LW: not on the flood risk listCM0 8LX: not on the flood risk listCM0 8NA: not on the flood risk listCM0 8NH: not on the flood risk listCM0 8NP: not on the flood risk listCM0 8NR: not on the flood risk listCM0 8NS: not on the flood risk listCM0 8NT: not on the flood risk listCM0 8NU: not on the flood risk listCM0 8NX: not on the flood risk listCM0 8NY: not on the flood risk listCM0 8PB: not on the flood risk listCM0 8PD: not on the flood risk listCM0 8PE: not on the flood risk listCM0 8PG: not on the flood risk listCM0 8PH: not on the flood risk listCM0 8PJ: not on the flood risk listCM0 8PQ: not on the flood risk listCM0 8PR: not on the flood risk listCM0 8PS: not on the flood risk listCM0 8PU: not on the flood risk listCM0 8PW: not on the flood risk listCM0 8PX: not on the flood risk listCM0 8PY: not on the flood risk listCM0 8QA: not on the flood risk listCM0 8QB: not on the flood risk listCM0 8QD: not on the flood risk listCM0 8QE: not on the flood risk listCM0 8QF: not on the flood risk listCM0 8QG: not on the flood risk listCM0 8QJ: not on the flood risk listCM0 8QL: not on the flood risk listCM0 8QQ: not on the flood risk listCM0 8QS: not on the flood risk listCM0 8QT: not on the flood risk listCM0 8QU: not on the flood risk listCM0 8QW: not on the flood risk listCM0 8QY: not on the flood risk listCM0 8RA: not on the flood risk listCM0 8RB: not on the flood risk listCM0 8RF: not on the flood risk listCM0 8RH: not on the flood risk listCM0 8RL: not on the flood risk listCM0 8RQ: not on the flood risk listCM0 8RT: not on the flood risk listCM0 8RU: not on the flood risk listCM0 8RX: not on the flood risk listCM0 8RZ: not on the flood risk listCM0 8SA: not on the flood risk listCM0 8SD: not on the flood risk listCM0 8SG: not on the flood risk listCM0 8SH: not on the flood risk listCM0 8SN: not on the flood risk listCM0 8SR: not on the flood risk listCM0 8ST: not on the flood risk listCM0 8SU: not on the flood risk listCM0 8SX: not on the flood risk listCM0 8TA: not on the flood risk listCM0 8TB: not on the flood risk listCM0 8TE: not on the flood risk listCM0 8TF: not on the flood risk listCM0 8TH: not on the flood risk listCM0 8TJ: not on the flood risk listCM0 8TL: not on the flood risk listCM0 8TP: not on the flood risk listCM0 8TT: not on the flood risk listCM0 8TU: not on the flood risk listCM0 8TW: not on the flood risk listCM0 8UA: not on the flood risk listCM0 8UD: not on the flood risk listCM0 8UE: not on the flood risk listCM0 8UP: not on the flood risk listCM0 8UR: not on the flood risk listCM0 8US: not on the flood risk listCM0 7DP: very low flood risk onlyCM0 7JD: very low flood risk onlyCM0 7LQ: very low flood risk onlyCM0 7LT: very low flood risk onlyCM0 7NA: very low flood risk onlyCM0 7NB: very low flood risk onlyCM0 7ND: very low flood risk onlyCM0 7NE: very low flood risk onlyCM0 7NG: very low flood risk onlyCM0 7NH: very low flood risk onlyCM0 7NJ: very low flood risk onlyCM0 7NL: very low flood risk onlyCM0 7NP: very low flood risk onlyCM0 7NQ: very low flood risk onlyCM0 7NR: very low flood risk onlyCM0 7NS: very low flood risk onlyCM0 7NT: very low flood risk onlyCM0 7NU: very low flood risk onlyCM0 7PA: very low flood risk onlyCM0 7QZ: very low flood risk onlyCM0 7RB: very low flood risk onlyCM0 7UP: very low flood risk onlyCM0 8AB: very low flood risk onlyCM0 8AN: very low flood risk onlyCM0 8BQ: very low flood risk onlyCM0 8EJ: very low flood risk onlyCM0 8ER: very low flood risk onlyCM0 8EZ: very low flood risk onlyCM0 8FA: very low flood risk onlyCM0 8GZ: very low flood risk onlyCM0 8HB: very low flood risk onlyCM0 8HH: very low flood risk onlyCM0 8HJ: very low flood risk onlyCM0 8PN: very low flood risk onlyCM0 8HR: very low flood risk onlyCM0 8HS: very low flood risk onlyCM0 8HT: very low flood risk onlyCM0 8HW: very low flood risk onlyCM0 8HX: very low flood risk onlyCM0 8JA: very low flood risk onlyCM0 8JB: very low flood risk onlyCM0 8LB: very low flood risk onlyCM0 8JT: very low flood risk onlyCM0 8JU: very low flood risk onlyCM0 8JX: very low flood risk onlyCM0 8JZ: very low flood risk onlyCM0 8LD: very low flood risk onlyCM0 8LP: very low flood risk onlyCM0 8LR: very low flood risk onlyCM0 8LS: very low flood risk onlyCM0 8RP: very low flood risk onlyCM0 8RR: very low flood risk onlyCM0 8SY: very low flood risk onlyCM0 8SZ: very low flood risk onlyCM0 7BB: low flood risk at worstCM0 7GR: low flood risk at worstCM0 7HW: low flood risk at worstCM0 7JH: low flood risk at worstCM0 7JZ: low flood risk at worstCM0 7LU: low flood risk at worstCM0 7PH: low flood risk at worstCM0 7PZ: low flood risk at worstCM0 8AR: low flood risk at worstCM0 8AH: low flood risk at worstCM0 8AT: low flood risk at worstCM0 8HA: low flood risk at worstCM0 7QU: medium flood risk at worstCM0 7QX: medium flood risk at worstCM0 7RP: medium flood risk at worstCM0 8PZ: medium flood risk at worstCM0 7AP: high flood riskCM0 7AW: high flood riskCM0 7BD: high flood riskCM0 7BG: high flood riskCM0 7FX: high flood riskCM0 7QY: high flood riskCM0 7HR: high flood riskCM0 7HY: high flood riskCM0 7HZ: high flood riskCM0 7JB: high flood riskCM0 7JG: high flood riskCM0 7JJ: high flood riskCM0 7JN: high flood riskCM0 7JQ: high flood riskCM0 7LY: high flood riskCM0 7NF: high flood riskCM0 7PN: high flood riskCM0 7PW: high flood riskCM0 7QB: high flood riskCM0 7RW: high flood riskCM0 7RS: high flood riskCM0 7SN: high flood riskCM0 7UR: high flood riskCM0 7UT: high flood riskCM0 7UY: high flood riskCM0 7XW: high flood riskCM0 7YF: high flood riskCM0 8AG: high flood riskCM0 8AJ: high flood riskCM0 8AU: high flood riskCM0 8AX: high flood riskCM0 8LU: high flood riskCM0 8LZ: high flood riskCM0 8NB: high flood riskCM0 8ND: high flood riskCM0 8NE: high flood riskCM0 8NF: high flood riskCM0 8NG: high flood riskCM0 8NJ: high flood riskCM0 8NQ: high flood riskCM0 8PL: high flood riskCM0 8PT: high flood risk Burnham-on-CrouchSouthminster 6 postcodes at high or medium risk, outlined: this goes to CM0 7UY, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in CM0, by flood risk Of the 564 postcodes in CM0 that ONS places, 43 have a home or business at high risk, 4 are at medium risk at worst, 17 are at low risk at worst, 70 are at very low risk only and 430 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 6 postcodes at high or medium risk. Places named: Burnham-on-Crouch, Southminster. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. Burnham-on-CrouchSouthminster
  • A home or business at high risk: 43
  • At medium risk at worst: 4
  • At low risk at worst: 17
  • At very low risk only: 70
  • Not on the at-risk list: 430
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 564 postcodes in CM0 that ONS places, 43 have a home or business at high risk, 4 are at medium risk at worst, 17 are at low risk at worst, 70 are at very low risk only and 430 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. A dashed outline shows where 5 or more lie within 170 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.

The middle of its postcodes: latitude 51.6616, longitude 0.8328. 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

43 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

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

CM0 7RS505 at high riskCM0 7LY117 at high riskCM0 8AJ43 at high riskCM0 7JG22 at high riskCM0 8NE22 at high riskCM0 8AS21 at high riskCM0 8NG16 at high riskCM0 8NQ13 at high riskCM0 7JQ12 at high riskCM0 7UY12 at high riskCM0 7JJ11 at high riskCM0 7HY10 at high risk

Where the postcodes at high or medium risk lie together

  • 6 postcodes at high or medium risk, outlined on the map. CM0 7UY, is the one with most homes and businesses at high risk.

What broadband can you get in CM0?

Ofcom reports on 552 of the 564 postcodes in CM0. At 333 of them every home and business can get gigabit broadband, and at 9 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit333 of 552
Postcodes where every home can get superfast487 of 552
Postcodes where some cannot get decent broadband9 of 552

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 CM0 at risk of flooding?

134 of the 564 postcodes in CM0 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 1,025 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 134 of 564 postcodes High: 912Medium: 113Low: 238Very low: 1,683

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 CM0?

Homes in CM0 sold for a typical £350,000 in the 12 months to August 2026, across 221 sales, down 4.1% on the 12 months before, HM Land Registry's figures show.

£350,000 typical price, the 12 months to August 2026
£365,000 12 months to August 2025
▼ down 4.1% on the 12 months before
  • Detached £450,000 108 sales
  • Semi-detached £320,000 65 sales
  • Terraced £289,000 32 sales
  • Flat or maisonette £175,000 16 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 CM0

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

CM0 7296 postcodesCM0 8268 postcodes
UK postcode format explained

Places in CM0

Towns and villages with postcodes in CM0, and how many each has here.

Burnham-on-Crouch postcodes,212Southminster postcodes,106

Who covers CM0

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

  • Maldon564

Police force areas

  • Essex564

Next to CM0

CM1 postcode district All CM districts Burnham-on-Crouch postcodes

"Next to" is by number: the district after CM0 in the CM area.

Check a postcode

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