CH1 postcode district: Chester and around

CH1 is a postcode district mostly in England, with 1,053 postcodes in use in 7 sectors. It has postcodes in Chester, Saughall and Ellesmere Port. It is split between 2 councils: Cheshire West and Chester (1,033 postcodes) and Flintshire (20). It crosses a national border: 1,033 are in England and 20 in Wales.

Postcodes in use
1,053
Sectors
7
Councils
2 councils
Places
3 places

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

Every postcode in CH1, by flood risk

Map of every postcode in CH1, by flood risk Of the 1,033 postcodes in CH1 in England that ONS places, 68 have a home or business at high risk, 31 are at medium risk at worst, 21 are at low risk at worst, 4 are at very low risk only and 909 are not on the Environment Agency's at-risk list. The other 20 are in Wales or Scotland, which the Environment Agency's list does not cover. 5 groups of postcodes at high or medium risk are outlined: 36 postcodes at high or medium risk; 12 postcodes at high or medium risk; 7 postcodes at high or medium risk; 7 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Chester, Saughall. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M56A550A41 CH1 4QL: not covered by the flood listCH1 6BA: not covered by the flood listCH1 6BB: not covered by the flood listCH1 6BL: not covered by the flood listCH1 6BP: not covered by the flood listCH1 6BQ: not covered by the flood listCH1 6BR: not covered by the flood listCH1 6BS: not covered by the flood listCH1 6BX: not covered by the flood listCH1 6BY: not covered by the flood listCH1 6BZ: not covered by the flood listCH1 6DD: not covered by the flood listCH1 6EB: not covered by the flood listCH1 6HB: not covered by the flood listCH1 6HH: not covered by the flood listCH1 6QB: not covered by the flood listCH1 6QE: not covered by the flood listCH1 6QF: not covered by the flood listCH1 6QG: not covered by the flood listCH1 6QQ: not covered by the flood listCH1 1AB: not on the flood risk listCH1 1AF: not on the flood risk listCH1 1AG: not on the flood risk listCH1 1DA: not on the flood risk listCH1 1DD: not on the flood risk listCH1 1DE: not on the flood risk listCH1 1DF: not on the flood risk listCH1 1ED: not on the flood risk listCH1 1EE: not on the flood risk listCH1 1ES: not on the flood risk listCH1 1HA: not on the flood risk listCH1 1HB: not on the flood risk listCH1 1HD: not on the flood risk listCH1 1HE: not on the flood risk listCH1 1HG: not on the flood risk listCH1 1HH: not on the flood risk listCH1 1HL: not on the flood risk listCH1 1HN: not on the flood risk listCH1 1HT: not on the flood risk listCH1 1JG: not on the flood risk listCH1 1JT: not on the flood risk listCH1 1LB: not on the flood risk listCH1 1LE: not on the flood risk listCH1 1LH: not on the flood risk listCH1 1NE: not on the flood risk listCH1 1NG: not on the flood risk listCH1 1NJ: not on the flood risk listCH1 1NL: not on the flood risk listCH1 1NZ: not on the flood risk listCH1 1PD: not on the flood risk listCH1 1PW: not on the flood risk listCH1 1QE: not on the flood risk listCH1 1QG: not on the flood risk listCH1 1QJ: not on the flood risk listCH1 1QN: not on the flood risk listCH1 1QS: not on the flood risk listCH1 1QZ: not on the flood risk listCH1 1RA: not on the flood risk listCH1 1RD: not on the flood risk listCH1 1RE: not on the flood risk listCH1 1RG: not on the flood risk listCH1 1RH: not on the flood risk listCH1 1RS: not on the flood risk listCH1 1RT: not on the flood risk listCH1 1RX: not on the flood risk listCH1 1RY: not on the flood risk listCH1 1SA: not on the flood risk listCH1 1SE: not on the flood risk listCH1 1SG: not on the flood risk listCH1 1SN: not on the flood risk listCH1 1XG: not on the flood risk listCH1 2AB: not on the flood risk listCH1 2AD: not on the flood risk listCH1 2AH: not on the flood risk listCH1 2AJ: not on the flood risk listCH1 2AN: not on the flood risk listCH1 2AR: not on the flood risk listCH1 2AS: not on the flood risk listCH1 2AU: not on the flood risk listCH1 2AW: not on the flood risk listCH1 2AX: not on the flood risk listCH1 2BA: not on the flood risk listCH1 2BD: not on the flood risk listCH1 2BF: not on the flood risk listCH1 2BH: not on the flood risk listCH1 2BN: not on the flood risk listCH1 2BQ: not on the flood risk listCH1 2BY: not on the flood risk listCH1 2DD: not on the flood risk listCH1 2DF: not on the flood risk listCH1 2DJ: not on the flood risk listCH1 2DN: not on the flood risk listCH1 2DP: not on the flood risk listCH1 2DQ: not on the flood risk listCH1 2DR: not on the flood risk listCH1 2DW: not on the flood risk listCH1 2ET: not on the flood risk listCH1 2HG: not on the flood risk listCH1 2HQ: not on the flood risk listCH1 2HT: not on the flood risk listCH1 2HU: not on the flood risk listCH1 2JA: not on the flood risk listCH1 2JB: not on the flood risk listCH1 2JD: not on the flood risk listCH1 2JF: not on the flood risk listCH1 2JG: not on the flood risk listCH1 2LA: not on the flood risk listCH1 2LF: not on the flood risk listCH1 2LH: not on the flood risk listCH1 2LJ: not on the flood risk listCH1 2LQ: not on the flood risk listCH1 2LR: not on the flood risk listCH1 2LS: not on the flood risk listCH1 2NH: not on the flood risk listCH1 2NP: not on the flood risk listCH1 2NR: not on the flood risk listCH1 2NS: not on the flood risk listCH1 2NU: not on the flood risk listCH1 2NW: not on the flood risk listCH1 2QS: not on the flood risk listCH1 2SA: not on the flood risk listCH1 2XA: not on the flood risk listCH1 3AA: not on the flood risk listCH1 3AD: not on the flood risk listCH1 3AF: not on the flood risk listCH1 3AG: not on the flood risk listCH1 3AH: not on the flood risk listCH1 3AJ: not on the flood risk listCH1 3AN: not on the flood risk listCH1 3AP: not on the flood risk listCH1 3AQ: not on the flood risk listCH1 3AX: not on the flood risk listCH1 3BA: not on the flood risk listCH1 3BD: not on the flood risk listCH1 3BN: not on the flood risk listCH1 3BT: not on the flood risk listCH1 3BU: not on the flood risk listCH1 3BX: not on the flood risk listCH1 3BY: not on the flood risk listCH1 3BZ: not on the flood risk listCH1 3DE: not on the flood risk listCH1 3DF: not on the flood risk listCH1 3DH: not on the flood risk listCH1 3DN: not on the flood risk listCH1 3DP: not on the flood risk listCH1 3DS: not on the flood risk listCH1 3DU: not on the flood risk listCH1 3DW: not on the flood risk listCH1 3DY: not on the flood risk listCH1 3DZ: not on the flood risk listCH1 3EA: not on the flood risk listCH1 3EB: not on the flood risk listCH1 3EF: not on the flood risk listCH1 3EH: not on the flood risk listCH1 3EQ: not on the flood risk listCH1 3ER: not on the flood risk listCH1 3ET: not on the flood risk listCH1 3EU: not on the flood risk listCH1 3EX: not on the flood risk listCH1 3EY: not on the flood risk listCH1 3FA: not on the flood risk listCH1 3GW: not on the flood risk listCH1 3HB: not on the flood risk listCH1 3HD: not on the flood risk listCH1 3HG: not on the flood risk listCH1 3HH: not on the flood risk listCH1 3HP: not on the flood risk listCH1 3HS: not on the flood risk listCH1 3HT: not on the flood risk listCH1 3HU: not on the flood risk listCH1 3HY: not on the flood risk listCH1 3JA: not on the flood risk listCH1 3JD: not on the flood risk listCH1 3JE: not on the flood risk listCH1 3JH: not on the flood risk listCH1 3JJ: not on the flood risk listCH1 3JL: not on the flood risk listCH1 3JN: not on the flood risk listCH1 3JT: not on the flood risk listCH1 3LE: not on the flood risk listCH1 3LG: not on the flood risk listCH1 3LH: not on the flood risk listCH1 3LP: not on the flood risk listCH1 3LQ: not on the flood risk listCH1 3LR: not on the flood risk listCH1 3LW: not on the flood risk listCH1 3NE: not on the flood risk listCH1 3NF: not on the flood risk listCH1 3NP: not on the flood risk listCH1 3NS: not on the flood risk listCH1 4AD: not on the flood risk listCH1 4AE: not on the flood risk listCH1 4AF: not on the flood risk listCH1 4AG: not on the flood risk listCH1 4AH: not on the flood risk listCH1 4AL: not on the flood risk listCH1 4AN: not on the flood risk listCH1 4AP: not on the flood risk listCH1 4AR: not on the flood risk listCH1 4AS: not on the flood risk listCH1 4AT: not on the flood risk listCH1 4AU: not on the flood risk listCH1 4AW: not on the flood risk listCH1 4BA: not on the flood risk listCH1 4BB: not on the flood risk listCH1 4BD: not on the flood risk listCH1 4BJ: not on the flood risk listCH1 4BL: not on the flood risk listCH1 4BN: not on the flood risk listCH1 4BR: not on the flood risk listCH1 4BS: not on the flood risk listCH1 4BU: not on the flood risk listCH1 4BY: not on the flood risk listCH1 4BZ: not on the flood risk listCH1 4DA: not on the flood risk listCH1 4DB: not on the flood risk listCH1 4DE: not on the flood risk listCH1 4DF: not on the flood risk listCH1 4DH: not on the flood risk listCH1 4DR: not on the flood risk listCH1 4DS: not on the flood risk listCH1 4EB: not on the flood risk listCH1 4ED: not on the flood risk listCH1 4EE: not on the flood risk listCH1 4EG: not on the flood risk listCH1 4EH: not on the flood risk listCH1 4EJ: not on the flood risk listCH1 4EL: not on the flood risk listCH1 4EN: not on the flood risk listCH1 4EU: not on the flood risk listCH1 4EW: not on the flood risk listCH1 4EY: not on the flood risk listCH1 4EZ: not on the flood risk listCH1 4FA: not on the flood risk listCH1 4FB: not on the flood risk listCH1 4FD: not on the flood risk listCH1 4FG: not on the flood risk listCH1 4GA: not on the flood risk listCH1 4GH: not on the flood risk listCH1 4GR: not on the flood risk listCH1 4GW: not on the flood risk listCH1 4GX: not on the flood risk listCH1 4HE: not on the flood risk listCH1 4HF: not on the flood risk listCH1 4HG: not on the flood risk listCH1 4HL: not on the flood risk listCH1 4HN: not on the flood risk listCH1 4HP: not on the flood risk listCH1 4HR: not on the flood risk listCH1 4HT: not on the flood risk listCH1 4NX: not on the flood risk listCH1 5AD: not on the flood risk listCH1 5AE: not on the flood risk listCH1 5AF: not on the flood risk listCH1 5AG: not on the flood risk listCH1 5AS: not on the flood risk listCH1 5AT: not on the flood risk listCH1 5AU: not on the flood risk listCH1 5AX: not on the flood risk listCH1 5AY: not on the flood risk listCH1 5AZ: not on the flood risk listCH1 5BA: not on the flood risk listCH1 5BB: not on the flood risk listCH1 5BD: not on the flood risk listCH1 5BE: not on the flood risk listCH1 5BF: not on the flood risk listCH1 5BG: not on the flood risk listCH1 5BH: not on the flood risk listCH1 5BJ: not on the flood risk listCH1 5BN: not on the flood risk listCH1 5BP: not on the flood risk listCH1 5BQ: not on the flood risk listCH1 5BR: not on the flood risk listCH1 5BS: not on the flood risk listCH1 5BT: not on the flood risk listCH1 5BU: not on the flood risk listCH1 5BW: not on the flood risk listCH1 5BX: not on the flood risk listCH1 5BY: not on the flood risk listCH1 5BZ: not on the flood risk listCH1 5DA: not on the flood risk listCH1 5DB: not on the flood risk listCH1 5DD: not on the flood risk listCH1 5DE: not on the flood risk listCH1 5DF: not on the flood risk listCH1 5DG: not on the flood risk listCH1 5DH: not on the flood risk listCH1 5DJ: not on the flood risk listCH1 5DL: not on the flood risk listCH1 5DN: not on the flood risk listCH1 5DP: not on the flood risk listCH1 5DQ: not on the flood risk listCH1 5DT: not on the flood risk listCH1 5DU: not on the flood risk listCH1 5DW: not on the flood risk listCH1 5DX: not on the flood risk listCH1 5DY: not on the flood risk listCH1 5DZ: not on the flood risk listCH1 5EA: not on the flood risk listCH1 5ED: not on the flood risk listCH1 5EE: not on the flood risk listCH1 5EF: not on the flood risk listCH1 5EG: not on the flood risk listCH1 5EH: not on the flood risk listCH1 5EL: not on the flood risk listCH1 5EP: not on the flood risk listCH1 5EQ: not on the flood risk listCH1 5ER: not on the flood risk listCH1 5ES: not on the flood risk listCH1 5ET: not on the flood risk listCH1 5EU: not on the flood risk listCH1 5EW: not on the flood risk listCH1 5EX: not on the flood risk listCH1 5EY: not on the flood risk listCH1 5EZ: not on the flood risk listCH1 5FA: not on the flood risk listCH1 5FB: not on the flood risk listCH1 5FD: not on the flood risk listCH1 5FJ: not on the flood risk listCH1 5GA: not on the flood risk listCH1 5GB: not on the flood risk listCH1 5HA: not on the flood risk listCH1 5HB: not on the flood risk listCH1 5HD: not on the flood risk listCH1 5HE: not on the flood risk listCH1 5HF: not on the flood risk listCH1 5HG: not on the flood risk listCH1 5HH: not on the flood risk listCH1 5HJ: not on the flood risk listCH1 5HL: not on the flood risk listCH1 5HP: not on the flood risk listCH1 5HQ: not on the flood risk listCH1 5HR: not on the flood risk listCH1 5HT: not on the flood risk listCH1 5HU: not on the flood risk listCH1 5HX: not on the flood risk listCH1 5HY: not on the flood risk listCH1 5HZ: not on the flood risk listCH1 5JA: not on the flood risk listCH1 5JB: not on the flood risk listCH1 5JD: not on the flood risk listCH1 5JE: not on the flood risk listCH1 5JF: not on the flood risk listCH1 5JG: not on the flood risk listCH1 5JH: not on the flood risk listCH1 5JJ: not on the flood risk listCH1 5JL: not on the flood risk listCH1 5JN: not on the flood risk listCH1 5JP: not on the flood risk listCH1 5JQ: not on the flood risk listCH1 5JR: not on the flood risk listCH1 5JS: not on the flood risk listCH1 5JU: not on the flood risk listCH1 5JX: not on the flood risk listCH1 5JY: not on the flood risk listCH1 5LB: not on the flood risk listCH1 5LD: not on the flood risk listCH1 5LE: not on the flood risk listCH1 5LF: not on the flood risk listCH1 5LG: not on the flood risk listCH1 5LH: not on the flood risk listCH1 5LJ: not on the flood risk listCH1 5LL: not on the flood risk listCH1 5LP: not on the flood risk listCH1 5LQ: not on the flood risk listCH1 5LR: not on the flood risk listCH1 5LS: not on the flood risk listCH1 5LT: not on the flood risk listCH1 5LW: not on the flood risk listCH1 5LY: not on the flood risk listCH1 5LZ: not on the flood risk listCH1 5NA: not on the flood risk listCH1 5NB: not on the flood risk listCH1 5ND: not on the flood risk listCH1 5NE: not on the flood risk listCH1 5NF: not on the flood risk listCH1 5NG: not on the flood risk listCH1 5NJ: not on the flood risk listCH1 5NL: not on the flood risk listCH1 5NN: not on the flood risk listCH1 5NP: not on the flood risk listCH1 5NQ: not on the flood risk listCH1 5NS: not on the flood risk listCH1 5NU: not on the flood risk listCH1 5NW: not on the flood risk listCH1 5NX: not on the flood risk listCH1 5NZ: not on the flood risk listCH1 5PA: not on the flood risk listCH1 5PB: not on the flood risk listCH1 5PD: not on the flood risk listCH1 5PE: not on the flood risk listCH1 5PF: not on the flood risk listCH1 5PG: not on the flood risk listCH1 5PH: not on the flood risk listCH1 5PJ: not on the flood risk listCH1 5PL: not on the flood risk listCH1 5PN: not on the flood risk listCH1 5PP: not on the flood risk listCH1 5PQ: not on the flood risk listCH1 5PS: not on the flood risk listCH1 5PT: not on the flood risk listCH1 5PU: not on the flood risk listCH1 5PW: not on the flood risk listCH1 5PX: not on the flood risk listCH1 5PY: not on the flood risk listCH1 5PZ: not on the flood risk listCH1 5QB: not on the flood risk listCH1 5QE: not on the flood risk listCH1 5QF: not on the flood risk listCH1 5QH: not on the flood risk listCH1 5QJ: not on the flood risk listCH1 5QL: not on the flood risk listCH1 5QN: not on the flood risk listCH1 5QP: not on the flood risk listCH1 5QQ: not on the flood risk listCH1 5QW: not on the flood risk listCH1 5QY: not on the flood risk listCH1 5QZ: not on the flood risk listCH1 5RD: not on the flood risk listCH1 5RE: not on the flood risk listCH1 5RF: not on the flood risk listCH1 5RG: not on the flood risk listCH1 5RH: not on the flood risk listCH1 5RJ: not on the flood risk listCH1 5RL: not on the flood risk listCH1 5RN: not on the flood risk listCH1 5RQ: not on the flood risk listCH1 5RR: not on the flood risk listCH1 5RT: not on the flood risk listCH1 5RU: not on the flood risk listCH1 5RY: not on the flood risk listCH1 5SE: not on the flood risk listCH1 5SR: not on the flood risk listCH1 5SU: not on the flood risk listCH1 5SX: not on the flood risk listCH1 5SY: not on the flood risk listCH1 5SZ: not on the flood risk listCH1 5TG: not on the flood risk listCH1 5TX: not on the flood risk listCH1 5TY: not on the flood risk listCH1 5TZ: not on the flood risk listCH1 5UA: not on the flood risk listCH1 5UB: not on the flood risk listCH1 5UD: not on the flood risk listCH1 5UE: not on the flood risk listCH1 5UF: not on the flood risk listCH1 5UG: not on the flood risk listCH1 5UH: not on the flood risk listCH1 5UJ: not on the flood risk listCH1 5UL: not on the flood risk listCH1 5UN: not on the flood risk listCH1 5UP: not on the flood risk listCH1 5UQ: not on the flood risk listCH1 5UR: not on the flood risk listCH1 5US: not on the flood risk listCH1 5UT: not on the flood risk listCH1 5UU: not on the flood risk listCH1 5UX: not on the flood risk listCH1 5UY: not on the flood risk listCH1 5UZ: not on the flood risk listCH1 5WA: not on the flood risk listCH1 5WB: not on the flood risk listCH1 5XA: not on the flood risk listCH1 5XB: not on the flood risk listCH1 5XD: not on the flood risk listCH1 5XE: not on the flood risk listCH1 5XF: not on the flood risk listCH1 5XH: not on the flood risk listCH1 5XJ: not on the flood risk listCH1 5XP: not on the flood risk listCH1 5XQ: not on the flood risk listCH1 5XT: not on the flood risk listCH1 6AA: not on the flood risk listCH1 6AD: not on the flood risk listCH1 6AE: not on the flood risk listCH1 6AF: not on the flood risk listCH1 6AG: not on the flood risk listCH1 6AH: not on the flood risk listCH1 6AJ: not on the flood risk listCH1 6AL: not on the flood risk listCH1 6AN: not on the flood risk listCH1 6AP: not on the flood risk listCH1 6AQ: not on the flood risk listCH1 6AR: not on the flood risk listCH1 6AS: not on the flood risk listCH1 6AT: not on the flood risk listCH1 6AU: not on the flood risk listCH1 6AW: not on the flood risk listCH1 6AX: not on the flood risk listCH1 6AY: not on the flood risk listCH1 6AZ: not on the flood risk listCH1 6BD: not on the flood risk listCH1 6BE: not on the flood risk listCH1 6BF: not on the flood risk listCH1 6BG: not on the flood risk listCH1 6BH: not on the flood risk listCH1 6BU: not on the flood risk listCH1 6BW: not on the flood risk listCH1 6DA: not on the flood risk listCH1 6DB: not on the flood risk listCH1 6DE: not on the flood risk listCH1 6DF: not on the flood risk listCH1 6DG: not on the flood risk listCH1 6DH: not on the flood risk listCH1 6DJ: not on the flood risk listCH1 6DL: not on the flood risk listCH1 6DN: not on the flood risk listCH1 6DP: not on the flood risk listCH1 6DQ: not on the flood risk listCH1 6DR: not on the flood risk listCH1 6DS: not on the flood risk listCH1 6DT: not on the flood risk listCH1 6DU: not on the flood risk listCH1 6DW: not on the flood risk listCH1 6DX: not on the flood risk listCH1 6DY: not on the flood risk listCH1 6DZ: not on the flood risk listCH1 6EA: not on the flood risk listCH1 6ED: not on the flood risk listCH1 6EE: not on the flood risk listCH1 6EF: not on the flood risk listCH1 6EG: not on the flood risk listCH1 6EH: not on the flood risk listCH1 6EJ: not on the flood risk listCH1 6EL: not on the flood risk listCH1 6EN: not on the flood risk listCH1 6EP: not on the flood risk listCH1 6EQ: not on the flood risk listCH1 6ER: not on the flood risk listCH1 6ES: not on the flood risk listCH1 6ET: not on the flood risk listCH1 6EU: not on the flood risk listCH1 6EW: not on the flood risk listCH1 6EX: not on the flood risk listCH1 6EY: not on the flood risk listCH1 6EZ: not on the flood risk listCH1 6FA: not on the flood risk listCH1 6FB: not on the flood risk listCH1 6FE: not on the flood risk listCH1 6GA: not on the flood risk listCH1 6HE: not on the flood risk listCH1 6HF: not on the flood risk listCH1 6HG: not on the flood risk listCH1 6HJ: not on the flood risk listCH1 6HL: not on the flood risk listCH1 6HN: not on the flood risk listCH1 6HS: not on the flood risk listCH1 6HT: not on the flood risk listCH1 6HU: not on the flood risk listCH1 6HY: not on the flood risk listCH1 6HZ: not on the flood risk listCH1 6JA: not on the flood risk listCH1 6JB: not on the flood risk listCH1 6JD: not on the flood risk listCH1 6JH: not on the flood risk listCH1 6JJ: not on the flood risk listCH1 6JL: not on the flood risk listCH1 6JP: not on the flood risk listCH1 6JS: not on the flood risk listCH1 6JU: not on the flood risk listCH1 6JX: not on the flood risk listCH1 6JZ: not on the flood risk listCH1 6LA: not on the flood risk listCH1 6LB: not on the flood risk listCH1 6LD: not on the flood risk listCH1 6LF: not on the flood risk listCH1 6LG: not on the flood risk listCH1 6LH: not on the flood risk listCH1 6LJ: not on the flood risk listCH1 6LL: not on the flood risk listCH1 6LN: not on the flood risk listCH1 6LP: not on the flood risk listCH1 6LQ: not on the flood risk listCH1 6LR: not on the flood risk listCH1 6LS: not on the flood risk listCH1 6LT: not on the flood risk listCH1 6LU: not on the flood risk listCH1 6LW: not on the flood risk listCH1 6LX: not on the flood risk listCH1 6LY: not on the flood risk listCH1 6LZ: not on the flood risk listCH1 6NG: not on the flood risk listCH1 6NH: not on the flood risk listCH1 6NJ: not on the flood risk listCH1 6NL: not on the flood risk listCH1 6NN: not on the flood risk listCH1 6NP: not on the flood risk listCH1 6NR: not on the flood risk listCH1 6NS: not on the flood risk listCH1 6NT: not on the flood risk listCH1 6NU: not on the flood risk listCH1 6NW: not on the flood risk listCH1 6NX: not on the flood risk listCH1 6NY: not on the flood risk listCH1 6NZ: not on the flood risk listCH1 6PA: not on the flood risk listCH1 6PB: not on the flood risk listCH1 6PD: not on the flood risk listCH1 6PE: not on the flood risk listCH1 6PF: not on the flood risk listCH1 6PG: not on the flood risk listCH1 6PH: not on the flood risk listCH1 6PJ: not on the flood risk listCH1 6PL: not on the flood risk listCH1 6PN: not on the flood risk listCH1 6PP: not on the flood risk listCH1 6PQ: not on the flood risk listCH1 6PR: not on the flood risk listCH1 6PS: not on the flood risk listCH1 6PT: not on the flood risk listCH1 6PU: not on the flood risk listCH1 6PX: not on the flood risk listCH1 6PY: not on the flood risk listCH1 6QA: not on the flood risk listCH1 6QD: not on the flood risk listCH1 6QH: not on the flood risk listCH1 6QJ: not on the flood risk listCH1 6QP: not on the flood risk listCH1 6QR: not on the flood risk listCH1 6RR: not on the flood risk listCH1 1SZ: very low flood risk onlyCH1 4PL: very low flood risk onlyCH1 1HF: low flood risk at worstCH1 1HJ: low flood risk at worstCH1 3AE: low flood risk at worstCH1 3AT: low flood risk at worstCH1 3BB: low flood risk at worstCH1 3BF: low flood risk at worstCH1 3BH: low flood risk at worstCH1 3BQ: low flood risk at worstCH1 3DR: low flood risk at worstCH1 4AJ: low flood risk at worstCH1 4AQ: low flood risk at worstCH1 4BP: low flood risk at worstCH1 4DG: low flood risk at worstCH1 4JN: low flood risk at worstCH1 4LY: low flood risk at worstCH1 4NP: low flood risk at worstCH1 4PS: low flood risk at worstCH1 4QB: low flood risk at worstCH1 5QX: low flood risk at worstCH1 6NE: low flood risk at worstCH1 4BE: medium flood risk at worstCH1 4BT: medium flood risk at worstCH1 4DP: medium flood risk at worstCH1 4DY: medium flood risk at worstCH1 4EQ: medium flood risk at worstCH1 4EA: medium flood risk at worstCH1 4EX: medium flood risk at worstCH1 4JG: medium flood risk at worstCH1 4JJ: medium flood risk at worstCH1 4JQ: medium flood risk at worstCH1 4LF: medium flood risk at worstCH1 4LH: medium flood risk at worstCH1 4LS: medium flood risk at worstCH1 4LT: medium flood risk at worstCH1 4LU: medium flood risk at worstCH1 4LX: medium flood risk at worstCH1 4NE: medium flood risk at worstCH1 4NS: medium flood risk at worstCH1 4NW: medium flood risk at worstCH1 4PA: medium flood risk at worstCH1 4PU: medium flood risk at worstCH1 4PY: medium flood risk at worstCH1 4QS: medium flood risk at worstCH1 4QX: medium flood risk at worstCH1 4RJ: medium flood risk at worstCH1 4RL: medium flood risk at worstCH1 4RN: medium flood risk at worstCH1 4RW: medium flood risk at worstCH1 5ST: medium flood risk at worstCH1 6BJ: medium flood risk at worstCH1 1QQ: high flood riskCH1 1SB: high flood riskCH1 1SD: high flood riskCH1 1SL: high flood riskCH1 2LY: high flood riskCH1 2NN: high flood riskCH1 4AY: high flood riskCH1 4AZ: high flood riskCH1 4BG: high flood riskCH1 4BH: high flood riskCH1 4BQ: high flood riskCH1 4DN: high flood riskCH1 4HZ: high flood riskCH1 4JA: high flood riskCH1 4JB: high flood riskCH1 4JF: high flood riskCH1 4JH: high flood riskCH1 4JL: high flood riskCH1 4JS: high flood riskCH1 4JU: high flood riskCH1 4LB: high flood riskCH1 4LD: high flood riskCH1 4LE: high flood riskCH1 4LG: high flood riskCH1 4LJ: high flood riskCH1 4LQ: high flood riskCH1 4LW: high flood riskCH1 4NN: high flood riskCH1 4NT: high flood riskCH1 4PH: high flood riskCH1 4PR: high flood riskCH1 4PT: high flood riskCH1 4PZ: high flood riskCH1 4QG: high flood riskCH1 4QJ: high flood riskCH1 4QN: high flood riskCH1 4QP: high flood riskCH1 4QR: high flood riskCH1 4QT: high flood riskCH1 4RY: high flood riskCH1 5AL: high flood riskCH1 5AH: high flood riskCH1 5AJ: high flood riskCH1 5AP: high flood riskCH1 5AQ: high flood riskCH1 5AR: high flood riskCH1 5AW: high flood riskCH1 5DR: high flood riskCH1 5FE: high flood riskCH1 5FF: high flood riskCH1 5SA: high flood riskCH1 5SB: high flood riskCH1 5SF: high flood riskCH1 6HX: high flood risk ChesterSaughall 36 postcodes at high or medium risk, outlined: this goes to CH1 4LZ, the one with most homes and businesses at high risk36 postcodes at high or medium risk12 postcodes at high or medium risk, outlined: this goes to CH1 5AH, the one with most homes and businesses at high risk12 postcodes at high or medium risk7 postcodes at high or medium risk, outlined: this goes to CH1 4LH, the one with most homes and businesses at high risk7 postcodes at high or medium risk7 postcodes at high or medium risk, outlined: this goes to CH1 4QR, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in CH1, by flood risk Of the 1,033 postcodes in CH1 in England that ONS places, 68 have a home or business at high risk, 31 are at medium risk at worst, 21 are at low risk at worst, 4 are at very low risk only and 909 are not on the Environment Agency's at-risk list. The other 20 are in Wales or Scotland, which the Environment Agency's list does not cover. 5 groups of postcodes at high or medium risk are outlined: 36 postcodes at high or medium risk; 12 postcodes at high or medium risk; 7 postcodes at high or medium risk; 7 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Chester, Saughall. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A550 ChesterSaughall 12 postcodes at high or medium risk, outlined: this goes to CH1 5AH, the one with most homes and businesses at high risk12 postcodes at high or medium risk
  • A home or business at high risk: 68
  • At medium risk at worst: 31
  • At low risk at worst: 21
  • At very low risk only: 4
  • Not on the at-risk list: 909
  • In Wales or Scotland: not covered by the Environment Agency: 20
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 1,033 postcodes in CH1 in England that ONS places, 68 have a home or business at high risk, 31 are at medium risk at worst, 21 are at low risk at worst, 4 are at very low risk only and 909 are not on the Environment Agency's at-risk list. The other 20 are in Wales or Scotland, which the Environment Agency's list does not cover.

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 150 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 53.2027, longitude -2.9100. 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

68 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.

CH1 4LZ89 at high riskCH1 4LW86 at high riskCH1 4HZ62 at high riskCH1 4LN43 at high riskCH1 5FE36 at high riskCH1 4JR32 at high riskCH1 4LG29 at high riskCH1 4QG29 at high riskCH1 5AH28 at high riskCH1 4JB27 at high riskCH1 1SD26 at high riskCH1 4JL26 at high risk

Where the postcodes at high or medium risk lie together

  • 36 postcodes at high or medium risk, outlined on the map. CH1 4LZ, is the one with most homes and businesses at high risk.
  • 12 postcodes at high or medium risk, outlined on the map. CH1 5AH, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. CH1 4LH, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. CH1 4QR, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. CH1 5FE, is the one with most homes and businesses at high risk.

What broadband can you get in CH1?

Ofcom reports on 900 of the 1,053 postcodes in CH1. At 472 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit472 of 900
Postcodes where every home can get superfast782 of 900

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 CH1 at risk of flooding?

124 of the 1,033 postcodes in CH1 that are in England 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 1,509 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 124 of 1,033 postcodes High: 972Medium: 537Low: 507Very low: 68

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 CH1?

Homes in CH1 sold for a typical £216,000 in the 12 months to August 2026, across 338 sales, up 2.9% on the 12 months before, HM Land Registry's figures show.

£216,000 typical price, the 12 months to August 2026
12 months to August 2025
£210,000
12 months to August 2026
£216,000

▲ up 2.9% on the 12 months before

Detached£365,000 45 sales
Semi-detached£226,000 91 sales
Terraced£220,750 100 sales
Flat or maisonette£157,000 102 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 CH1

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

CH1 192 postcodesCH1 288 postcodesCH1 3124 postcodesCH1 4172 postcodesCH1 5269 postcodesCH1 6176 postcodesCH1 9132 postcodes
UK postcode format explained

Places in CH1

Towns and villages with postcodes in CH1, and how many each has here.

Chester postcodes,875Saughall postcodes,54Ellesmere Port postcodes,12

Who covers CH1

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

  • Chester North and Neston1,017
  • Alyn and Deeside20
  • Ellesmere Port and Bromborough11
  • Runcorn and Helsby5

Police force areas

  • Cheshire1,033
  • North Wales20

Next to CH1

CH2 postcode district All CH districts Chester postcodes

"Next to" is by number: the district after CH1 in the CH area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.