CM6 postcode district: Great Dunmow and around, Essex

CM6 is a postcode district in Essex, with 989 postcodes in use in 5 sectors. It has postcodes in Great Dunmow, Thaxted, Takeley and Little Canfield and 2 more places. It is split between 3 councils: Uttlesford (968 postcodes), Braintree (13) and Chelmsford (8).

Postcodes in use
989
Sectors
5
Councils
3 councils
Places
5 places

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

Every postcode in CM6, by flood risk

Map of every postcode in CM6, by flood risk Of the 989 postcodes in CM6 that ONS places, 27 have a home or business at high risk, 16 are at medium risk at worst, 20 are at low risk at worst, 1 are at very low risk only and 925 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 9 postcodes at high or medium risk. Places named: Great Dunmow, Braintree, Great Notley, Broomfield, Thaxted, Rayne. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A12A131 CM6 1AB: not on the flood risk listCM6 1AE: not on the flood risk listCM6 1AF: not on the flood risk listCM6 1AG: not on the flood risk listCM6 1AJ: not on the flood risk listCM6 1AN: not on the flood risk listCM6 1AP: not on the flood risk listCM6 1AR: not on the flood risk listCM6 1AT: not on the flood risk listCM6 1AZ: not on the flood risk listCM6 1BA: not on the flood risk listCM6 1BD: not on the flood risk listCM6 1BP: not on the flood risk listCM6 1BS: not on the flood risk listCM6 1BU: not on the flood risk listCM6 1BY: not on the flood risk listCM6 1DA: not on the flood risk listCM6 1DB: not on the flood risk listCM6 1DD: not on the flood risk listCM6 1DE: not on the flood risk listCM6 1DF: not on the flood risk listCM6 1DG: not on the flood risk listCM6 1DH: not on the flood risk listCM6 1DL: not on the flood risk listCM6 1DN: not on the flood risk listCM6 1DR: not on the flood risk listCM6 1DX: not on the flood risk listCM6 1DY: not on the flood risk listCM6 1EA: not on the flood risk listCM6 1EE: not on the flood risk listCM6 1EG: not on the flood risk listCM6 1EJ: not on the flood risk listCM6 1EN: not on the flood risk listCM6 1ES: not on the flood risk listCM6 1EU: not on the flood risk listCM6 1EX: not on the flood risk listCM6 1EZ: not on the flood risk listCM6 1FA: not on the flood risk listCM6 1FB: not on the flood risk listCM6 1FD: not on the flood risk listCM6 1FE: not on the flood risk listCM6 1FF: not on the flood risk listCM6 1FH: not on the flood risk listCM6 1FN: not on the flood risk listCM6 1FT: not on the flood risk listCM6 1FX: not on the flood risk listCM6 1FZ: not on the flood risk listCM6 1GE: not on the flood risk listCM6 1GF: not on the flood risk listCM6 1GG: not on the flood risk listCM6 1GH: not on the flood risk listCM6 1GJ: not on the flood risk listCM6 1GT: not on the flood risk listCM6 1GY: not on the flood risk listCM6 1HA: not on the flood risk listCM6 1HL: not on the flood risk listCM6 1HP: not on the flood risk listCM6 1HS: not on the flood risk listCM6 1HZ: not on the flood risk listCM6 1JA: not on the flood risk listCM6 1JB: not on the flood risk listCM6 1JD: not on the flood risk listCM6 1JE: not on the flood risk listCM6 1JF: not on the flood risk listCM6 1JG: not on the flood risk listCM6 1JH: not on the flood risk listCM6 1JJ: not on the flood risk listCM6 1JL: not on the flood risk listCM6 1JN: not on the flood risk listCM6 1JP: not on the flood risk listCM6 1JQ: not on the flood risk listCM6 1JR: not on the flood risk listCM6 1JS: not on the flood risk listCM6 1JX: not on the flood risk listCM6 1JZ: not on the flood risk listCM6 1LA: not on the flood risk listCM6 1LB: not on the flood risk listCM6 1LD: not on the flood risk listCM6 1LE: not on the flood risk listCM6 1LF: not on the flood risk listCM6 1LG: not on the flood risk listCM6 1LH: not on the flood risk listCM6 1LJ: not on the flood risk listCM6 1LS: not on the flood risk listCM6 1LT: not on the flood risk listCM6 1LU: not on the flood risk listCM6 1LZ: not on the flood risk listCM6 1NA: not on the flood risk listCM6 1NB: not on the flood risk listCM6 1ND: not on the flood risk listCM6 1NE: not on the flood risk listCM6 1NF: not on the flood risk listCM6 1NG: not on the flood risk listCM6 1NH: not on the flood risk listCM6 1NJ: not on the flood risk listCM6 1NL: not on the flood risk listCM6 1NP: not on the flood risk listCM6 1NQ: not on the flood risk listCM6 1NS: not on the flood risk listCM6 1NT: not on the flood risk listCM6 1NU: not on the flood risk listCM6 1NX: not on the flood risk listCM6 1PA: not on the flood risk listCM6 1PB: not on the flood risk listCM6 1PD: not on the flood risk listCM6 1PE: not on the flood risk listCM6 1PF: not on the flood risk listCM6 1PG: not on the flood risk listCM6 1PP: not on the flood risk listCM6 1PQ: not on the flood risk listCM6 1PS: not on the flood risk listCM6 1PT: not on the flood risk listCM6 1PX: not on the flood risk listCM6 1PZ: not on the flood risk listCM6 1QA: not on the flood risk listCM6 1QD: not on the flood risk listCM6 1QF: not on the flood risk listCM6 1QG: not on the flood risk listCM6 1QJ: not on the flood risk listCM6 1QL: not on the flood risk listCM6 1QN: not on the flood risk listCM6 1QP: not on the flood risk listCM6 1QQ: not on the flood risk listCM6 1QR: not on the flood risk listCM6 1QT: not on the flood risk listCM6 1QW: not on the flood risk listCM6 1QX: not on the flood risk listCM6 1RA: not on the flood risk listCM6 1RB: not on the flood risk listCM6 1RF: not on the flood risk listCM6 1RG: not on the flood risk listCM6 1RH: not on the flood risk listCM6 1RJ: not on the flood risk listCM6 1RL: not on the flood risk listCM6 1RN: not on the flood risk listCM6 1RP: not on the flood risk listCM6 1RQ: not on the flood risk listCM6 1RR: not on the flood risk listCM6 1RS: not on the flood risk listCM6 1RT: not on the flood risk listCM6 1RU: not on the flood risk listCM6 1RW: not on the flood risk listCM6 1RX: not on the flood risk listCM6 1RZ: not on the flood risk listCM6 1SE: not on the flood risk listCM6 1SH: not on the flood risk listCM6 1SJ: not on the flood risk listCM6 1SL: not on the flood risk listCM6 1SP: not on the flood risk listCM6 1SS: not on the flood risk listCM6 1ST: not on the flood risk listCM6 1TB: not on the flood risk listCM6 1TD: not on the flood risk listCM6 1TE: not on the flood risk listCM6 1TF: not on the flood risk listCM6 1TG: not on the flood risk listCM6 1TL: not on the flood risk listCM6 1TN: not on the flood risk listCM6 1TQ: not on the flood risk listCM6 1TU: not on the flood risk listCM6 1TW: not on the flood risk listCM6 1UG: not on the flood risk listCM6 1UQ: not on the flood risk listCM6 1UY: not on the flood risk listCM6 1WF: not on the flood risk listCM6 1WG: not on the flood risk listCM6 1WS: not on the flood risk listCM6 1WT: not on the flood risk listCM6 1WU: not on the flood risk listCM6 1WW: not on the flood risk listCM6 1WY: not on the flood risk listCM6 1XF: not on the flood risk listCM6 1XQ: not on the flood risk listCM6 1YQ: not on the flood risk listCM6 1YS: not on the flood risk listCM6 1ZB: not on the flood risk listCM6 2AJ: not on the flood risk listCM6 2AN: not on the flood risk listCM6 2AP: not on the flood risk listCM6 2AQ: not on the flood risk listCM6 2AR: not on the flood risk listCM6 2AS: not on the flood risk listCM6 2AT: not on the flood risk listCM6 2AU: not on the flood risk listCM6 2AW: not on the flood risk listCM6 2AZ: not on the flood risk listCM6 2BB: not on the flood risk listCM6 2BD: not on the flood risk listCM6 2BE: not on the flood risk listCM6 2BG: not on the flood risk listCM6 2BH: not on the flood risk listCM6 2BJ: not on the flood risk listCM6 2BL: not on the flood risk listCM6 2BN: not on the flood risk listCM6 2BP: not on the flood risk listCM6 2BS: not on the flood risk listCM6 2BT: not on the flood risk listCM6 2BU: not on the flood risk listCM6 2BW: not on the flood risk listCM6 2BX: not on the flood risk listCM6 2BY: not on the flood risk listCM6 2BZ: not on the flood risk listCM6 2DA: not on the flood risk listCM6 2DB: not on the flood risk listCM6 2DD: not on the flood risk listCM6 2DH: not on the flood risk listCM6 2DJ: not on the flood risk listCM6 2DL: not on the flood risk listCM6 2DN: not on the flood risk listCM6 2DP: not on the flood risk listCM6 2DR: not on the flood risk listCM6 2DS: not on the flood risk listCM6 2DT: not on the flood risk listCM6 2DU: not on the flood risk listCM6 2DW: not on the flood risk listCM6 2DX: not on the flood risk listCM6 2DZ: not on the flood risk listCM6 2ED: not on the flood risk listCM6 2EE: not on the flood risk listCM6 2EG: not on the flood risk listCM6 2EJ: not on the flood risk listCM6 2EL: not on the flood risk listCM6 2EN: not on the flood risk listCM6 2EP: not on the flood risk listCM6 2EQ: not on the flood risk listCM6 2ES: not on the flood risk listCM6 2ET: not on the flood risk listCM6 2EU: not on the flood risk listCM6 2EW: not on the flood risk listCM6 2EZ: not on the flood risk listCM6 2FA: not on the flood risk listCM6 2FE: not on the flood risk listCM6 2FF: not on the flood risk listCM6 2FJ: not on the flood risk listCM6 2FQ: not on the flood risk listCM6 2FR: not on the flood risk listCM6 2FT: not on the flood risk listCM6 2FY: not on the flood risk listCM6 2GD: not on the flood risk listCM6 2GE: not on the flood risk listCM6 2GJ: not on the flood risk listCM6 2GP: not on the flood risk listCM6 2GQ: not on the flood risk listCM6 2GS: not on the flood risk listCM6 2GT: not on the flood risk listCM6 2GW: not on the flood risk listCM6 2GY: not on the flood risk listCM6 2HA: not on the flood risk listCM6 2HD: not on the flood risk listCM6 2HE: not on the flood risk listCM6 2HG: not on the flood risk listCM6 2HN: not on the flood risk listCM6 2HP: not on the flood risk listCM6 2HR: not on the flood risk listCM6 2HY: not on the flood risk listCM6 2JA: not on the flood risk listCM6 2JE: not on the flood risk listCM6 2JH: not on the flood risk listCM6 2JJ: not on the flood risk listCM6 2JL: not on the flood risk listCM6 2JN: not on the flood risk listCM6 2JP: not on the flood risk listCM6 2JQ: not on the flood risk listCM6 2JR: not on the flood risk listCM6 2JU: not on the flood risk listCM6 2JW: not on the flood risk listCM6 2LJ: not on the flood risk listCM6 2LP: not on the flood risk listCM6 2LU: not on the flood risk listCM6 2NA: not on the flood risk listCM6 2NG: not on the flood risk listCM6 2NH: not on the flood risk listCM6 2NJ: not on the flood risk listCM6 2NN: not on the flood risk listCM6 2NP: not on the flood risk listCM6 2NR: not on the flood risk listCM6 2NS: not on the flood risk listCM6 2NT: not on the flood risk listCM6 2NU: not on the flood risk listCM6 2NW: not on the flood risk listCM6 2NX: not on the flood risk listCM6 2PR: not on the flood risk listCM6 2PW: not on the flood risk listCM6 2PZ: not on the flood risk listCM6 2QA: not on the flood risk listCM6 2QB: not on the flood risk listCM6 2QD: not on the flood risk listCM6 2QE: not on the flood risk listCM6 2QF: not on the flood risk listCM6 2QR: not on the flood risk listCM6 2QU: not on the flood risk listCM6 2RB: not on the flood risk listCM6 2RD: not on the flood risk listCM6 2RE: not on the flood risk listCM6 2RG: not on the flood risk listCM6 2RH: not on the flood risk listCM6 2RQ: not on the flood risk listCM6 2SE: not on the flood risk listCM6 2SJ: not on the flood risk listCM6 3AA: not on the flood risk listCM6 3AD: not on the flood risk listCM6 3AF: not on the flood risk listCM6 3AG: not on the flood risk listCM6 3AJ: not on the flood risk listCM6 3AN: not on the flood risk listCM6 3AP: not on the flood risk listCM6 3AT: not on the flood risk listCM6 3AU: not on the flood risk listCM6 3AW: not on the flood risk listCM6 3AZ: not on the flood risk listCM6 3BD: not on the flood risk listCM6 3BE: not on the flood risk listCM6 3BH: not on the flood risk listCM6 3BJ: not on the flood risk listCM6 3BL: not on the flood risk listCM6 3BN: not on the flood risk listCM6 3BP: not on the flood risk listCM6 3BQ: not on the flood risk listCM6 3BT: not on the flood risk listCM6 3BU: not on the flood risk listCM6 3BW: not on the flood risk listCM6 3BX: not on the flood risk listCM6 3BY: not on the flood risk listCM6 3BZ: not on the flood risk listCM6 3DA: not on the flood risk listCM6 3DB: not on the flood risk listCM6 3DE: not on the flood risk listCM6 3DF: not on the flood risk listCM6 3DG: not on the flood risk listCM6 3DJ: not on the flood risk listCM6 3DL: not on the flood risk listCM6 3DP: not on the flood risk listCM6 3DQ: not on the flood risk listCM6 3DR: not on the flood risk listCM6 3DX: not on the flood risk listCM6 3DZ: not on the flood risk listCM6 3EB: not on the flood risk listCM6 3EE: not on the flood risk listCM6 3EF: not on the flood risk listCM6 3EH: not on the flood risk listCM6 3EQ: not on the flood risk listCM6 3ER: not on the flood risk listCM6 3ET: not on the flood risk listCM6 3EU: not on the flood risk listCM6 3EY: not on the flood risk listCM6 3FD: not on the flood risk listCM6 3FF: not on the flood risk listCM6 3FH: not on the flood risk listCM6 3FJ: not on the flood risk listCM6 3FP: not on the flood risk listCM6 3FS: not on the flood risk listCM6 3FU: not on the flood risk listCM6 3FZ: not on the flood risk listCM6 3GB: not on the flood risk listCM6 3GD: not on the flood risk listCM6 3GG: not on the flood risk listCM6 3GL: not on the flood risk listCM6 3GQ: not on the flood risk listCM6 3GY: not on the flood risk listCM6 3HA: not on the flood risk listCM6 3HB: not on the flood risk listCM6 3HF: not on the flood risk listCM6 3HG: not on the flood risk listCM6 3HN: not on the flood risk listCM6 3HP: not on the flood risk listCM6 3HR: not on the flood risk listCM6 3HS: not on the flood risk listCM6 3HT: not on the flood risk listCM6 3HX: not on the flood risk listCM6 3JE: not on the flood risk listCM6 3JF: not on the flood risk listCM6 3JH: not on the flood risk listCM6 3JJ: not on the flood risk listCM6 3JP: not on the flood risk listCM6 3JR: not on the flood risk listCM6 3JS: not on the flood risk listCM6 3JT: not on the flood risk listCM6 3JU: not on the flood risk listCM6 3JZ: not on the flood risk listCM6 3LA: not on the flood risk listCM6 3LB: not on the flood risk listCM6 3LE: not on the flood risk listCM6 3LF: not on the flood risk listCM6 3LG: not on the flood risk listCM6 3LH: not on the flood risk listCM6 3LP: not on the flood risk listCM6 3LS: not on the flood risk listCM6 3LT: not on the flood risk listCM6 3LU: not on the flood risk listCM6 3LX: not on the flood risk listCM6 3LZ: not on the flood risk listCM6 3NA: not on the flood risk listCM6 3NB: not on the flood risk listCM6 3ND: not on the flood risk listCM6 3NF: not on the flood risk listCM6 3NG: not on the flood risk listCM6 3NH: not on the flood risk listCM6 3NJ: not on the flood risk listCM6 3NQ: not on the flood risk listCM6 3NY: not on the flood risk listCM6 3NZ: not on the flood risk listCM6 3PA: not on the flood risk listCM6 3PB: not on the flood risk listCM6 3PD: not on the flood risk listCM6 3PE: not on the flood risk listCM6 3PF: not on the flood risk listCM6 3PG: not on the flood risk listCM6 3PH: not on the flood risk listCM6 3PJ: not on the flood risk listCM6 3PL: not on the flood risk listCM6 3PN: not on the flood risk listCM6 3PP: not on the flood risk listCM6 3PQ: not on the flood risk listCM6 3PR: not on the flood risk listCM6 3PT: not on the flood risk listCM6 3PU: not on the flood risk listCM6 3PW: not on the flood risk listCM6 3PX: not on the flood risk listCM6 3PY: not on the flood risk listCM6 3PZ: not on the flood risk listCM6 3QA: not on the flood risk listCM6 3QB: not on the flood risk listCM6 3QD: not on the flood risk listCM6 3QE: not on the flood risk listCM6 3QF: not on the flood risk listCM6 3QG: not on the flood risk listCM6 3QH: not on the flood risk listCM6 3QJ: not on the flood risk listCM6 3QL: not on the flood risk listCM6 3QN: not on the flood risk listCM6 3QP: not on the flood risk listCM6 3QQ: not on the flood risk listCM6 3QS: not on the flood risk listCM6 3QU: not on the flood risk listCM6 3QW: not on the flood risk listCM6 3RA: not on the flood risk listCM6 3RB: not on the flood risk listCM6 3RD: not on the flood risk listCM6 3RF: not on the flood risk listCM6 3RG: not on the flood risk listCM6 3RJ: not on the flood risk listCM6 3RL: not on the flood risk listCM6 3RN: not on the flood risk listCM6 3RR: not on the flood risk listCM6 3RU: not on the flood risk listCM6 3RX: not on the flood risk listCM6 3RY: not on the flood risk listCM6 3SE: not on the flood risk listCM6 3SG: not on the flood risk listCM6 3SH: not on the flood risk listCM6 3SJ: not on the flood risk listCM6 3SP: not on the flood risk listCM6 3SR: not on the flood risk listCM6 3SS: not on the flood risk listCM6 3ST: not on the flood risk listCM6 3SU: not on the flood risk listCM6 3SW: not on the flood risk listCM6 3SX: not on the flood risk listCM6 3SY: not on the flood risk listCM6 3SZ: not on the flood risk listCM6 3TB: not on the flood risk listCM6 3TD: not on the flood risk listCM6 3TH: not on the flood risk listCM6 3TJ: not on the flood risk listCM6 3TU: not on the flood risk listCM6 3TW: not on the flood risk listCM6 3UD: not on the flood risk listCM6 3UG: not on the flood risk listCM6 3UJ: not on the flood risk listCM6 3US: not on the flood risk listCM6 3UX: not on the flood risk listCM6 3XD: not on the flood risk listCM6 3XF: not on the flood risk listCM6 3XL: not on the flood risk listCM6 3XP: not on the flood risk listCM6 3YG: not on the flood risk listCM6 3YH: not on the flood risk listCM6 3YN: not on the flood risk listCM6 3YT: not on the flood risk listCM6 3YW: not on the flood risk listCM6 3ZE: not on the flood risk listCM6 3ZH: not on the flood risk listCM6 3ZQ: not on the flood risk listCM6 3ZT: not on the flood risk listCM6 4AE: not on the flood risk listCM6 4AL: not on the flood risk listCM6 4AR: not on the flood risk listCM6 4AT: not on the flood risk listCM6 4BE: not on the flood risk listCM6 4BR: not on the flood risk listCM6 4DD: not on the flood risk listCM6 4EG: not on the flood risk listCM6 4FB: not on the flood risk listCM6 4FD: not on the flood risk listCM6 4FJ: not on the flood risk listCM6 4FT: not on the flood risk listCM6 4FU: not on the flood risk listCM6 4GB: not on the flood risk listCM6 4GF: not on the flood risk listCM6 4GH: not on the flood risk listCM6 4GR: not on the flood risk listCM6 4GY: not on the flood risk listCM6 4JG: not on the flood risk listCM6 1JU: very low flood risk onlyCM6 1EW: low flood risk at worstCM6 1LP: low flood risk at worstCM6 1HW: low flood risk at worstCM6 1LW: low flood risk at worstCM6 1QS: low flood risk at worstCM6 1RE: low flood risk at worstCM6 1SG: low flood risk at worstCM6 1SU: low flood risk at worstCM6 2AE: low flood risk at worstCM6 2AL: low flood risk at worstCM6 2JB: low flood risk at worstCM6 2LA: low flood risk at worstCM6 2NE: low flood risk at worstCM6 2RA: low flood risk at worstCM6 3LQ: low flood risk at worstCM6 3QR: low flood risk at worstCM6 3QT: low flood risk at worstCM6 3SN: low flood risk at worstCM6 1HU: medium flood risk at worstCM6 1JW: medium flood risk at worstCM6 1SN: medium flood risk at worstCM6 1SR: medium flood risk at worstCM6 2EH: medium flood risk at worstCM6 2LB: medium flood risk at worstCM6 2LD: medium flood risk at worstCM6 2LF: medium flood risk at worstCM6 2LG: medium flood risk at worstCM6 3AR: medium flood risk at worstCM6 3NX: medium flood risk at worstCM6 1EL: high flood riskCM6 1JT: high flood riskCM6 1LL: high flood riskCM6 1QY: high flood riskCM6 1RD: high flood riskCM6 1RY: high flood riskCM6 1XA: high flood riskCM6 1XG: high flood riskCM6 2AA: high flood riskCM6 2AD: high flood riskCM6 2AF: high flood riskCM6 2HJ: high flood riskCM6 2HH: high flood riskCM6 2HW: high flood riskCM6 2JG: high flood riskCM6 2HZ: high flood riskCM6 2PY: high flood riskCM6 3AH: high flood riskCM6 3BS: high flood riskCM6 3HD: high flood riskCM6 3HQ: high flood riskCM6 3HU: high flood riskCM6 3LD: high flood riskCM6 3PS: high flood riskCM6 3QZ: high flood riskCM6 3RS: high flood riskCM6 3TE: high flood risk Great DunmowBraintreeGreat NotleyBroomfieldThaxtedRayne 9 postcodes at high or medium risk, outlined: this goes to CM6 2ND, the one with most homes and businesses at high risk9 postcodes at high or medium risk Map of every postcode in CM6, by flood risk Of the 989 postcodes in CM6 that ONS places, 27 have a home or business at high risk, 16 are at medium risk at worst, 20 are at low risk at worst, 1 are at very low risk only and 925 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 9 postcodes at high or medium risk. Places named: Great Dunmow, Broomfield, Thaxted, Rayne. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. Great DunmowBroomfieldThaxtedRayne
  • A home or business at high risk: 27
  • At medium risk at worst: 16
  • At low risk at worst: 20
  • At very low risk only: 1
  • Not on the at-risk list: 925
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 989 postcodes in CM6 that ONS places, 27 have a home or business at high risk, 16 are at medium risk at worst, 20 are at low risk at worst, 1 are at very low risk only and 925 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 180 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 51.8782, longitude 0.3653. 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

27 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.

CM6 2AA7 at high riskCM6 1QY5 at high riskCM6 2AF4 at high riskCM6 3TE4 at high riskCM6 1JT3 at high riskCM6 2JG3 at high riskCM6 3LD3 at high riskCM6 3QZ2 at high riskCM6 2HZ2 at high riskCM6 1RD2 at high riskCM6 2HW2 at high riskCM6 3RS2 at high risk

Where the postcodes at high or medium risk lie together

  • 9 postcodes at high or medium risk, outlined on the map. CM6 2ND, is the one with most homes and businesses at high risk.

What broadband can you get in CM6?

Ofcom reports on 909 of the 989 postcodes in CM6. At 620 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 gigabit620 of 909
Postcodes where every home can get superfast809 of 909
Postcodes where some cannot get decent broadband9 of 909

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 CM6 at risk of flooding?

64 of the 989 postcodes in CM6 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 136 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 64 of 989 postcodes High: 54Medium: 82Low: 154Very low: 1

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 CM6?

Homes in CM6 sold for a typical £446,250 in the 12 months to August 2026, across 404 sales, down 2.8% on the 12 months before, HM Land Registry's figures show.

£446,250 typical price, the 12 months to August 2026
12 months to August 2025
£458,998
12 months to August 2026
£446,250

▼ down 2.8% on the 12 months before

Detached£575,000 203 sales
Semi-detached£405,000 91 sales
Terraced£352,500 78 sales
Flat or maisonette£205,000 32 sales

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 CM6

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

CM6 1378 postcodesCM6 2232 postcodesCM6 3309 postcodesCM6 461 postcodesCM6 99 postcodes
UK postcode format explained

Places in CM6

Towns and villages with postcodes in CM6, and how many each has here.

Great Dunmow postcodes,257Thaxted postcodes,84Takeley and Little Canfield postcodes,54Braintree postcodes,12Burton End postcodes,1

Who covers CM6

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

  • North West Essex777
  • Braintree185
  • Harlow27

Police force areas

  • Essex989

Next to CM6

CM5 postcode district CM7 postcode district All CM districts Great Dunmow postcodes

"Next to" is by number: the districts before and after CM6 in the CM area.

Check a postcode

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