CH3 postcode district: Chester and around

CH3 is a postcode district in England, with 1,112 postcodes in use in 5 sectors. It has postcodes in Chester, Christleton and Waverton, Tarvin and 2 more places. It is split between 2 councils: Cheshire West and Chester (1,111 postcodes) and Cheshire East (1).

Postcodes in use
1,112
Sectors
5
Councils
2 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 CH3, by flood risk

Map of every postcode in CH3, by flood risk Of the 1,112 postcodes in CH3 that ONS places, 50 have a home or business at high risk, 4 are at medium risk at worst, 14 are at low risk at worst, 4 are at very low risk only and 1,040 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 19 postcodes at high or medium risk. Places named: Chester, Tarporley, Christleton and Waverton, Kelsall, Tarvin, Farndon. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A49A56A54A55 CH3 5AA: not on the flood risk listCH3 5BF: not on the flood risk listCH3 5BG: not on the flood risk listCH3 5BU: not on the flood risk listCH3 5BW: not on the flood risk listCH3 5BY: not on the flood risk listCH3 5DA: not on the flood risk listCH3 5DB: not on the flood risk listCH3 5DH: not on the flood risk listCH3 5DP: not on the flood risk listCH3 5DS: not on the flood risk listCH3 5EA: not on the flood risk listCH3 5EB: not on the flood risk listCH3 5EE: not on the flood risk listCH3 5EG: not on the flood risk listCH3 5EH: not on the flood risk listCH3 5ER: not on the flood risk listCH3 5EY: not on the flood risk listCH3 5EZ: not on the flood risk listCH3 5HA: not on the flood risk listCH3 5HB: not on the flood risk listCH3 5HD: not on the flood risk listCH3 5HE: not on the flood risk listCH3 5HF: not on the flood risk listCH3 5HJ: not on the flood risk listCH3 5HN: not on the flood risk listCH3 5HQ: not on the flood risk listCH3 5HS: not on the flood risk listCH3 5HZ: not on the flood risk listCH3 5JA: not on the flood risk listCH3 5JD: not on the flood risk listCH3 5JF: not on the flood risk listCH3 5JH: not on the flood risk listCH3 5JL: not on the flood risk listCH3 5JN: not on the flood risk listCH3 5JQ: not on the flood risk listCH3 5JR: not on the flood risk listCH3 5JS: not on the flood risk listCH3 5JU: not on the flood risk listCH3 5JX: not on the flood risk listCH3 5JZ: not on the flood risk listCH3 5LA: not on the flood risk listCH3 5LD: not on the flood risk listCH3 5LF: not on the flood risk listCH3 5LH: not on the flood risk listCH3 5LJ: not on the flood risk listCH3 5LN: not on the flood risk listCH3 5LP: not on the flood risk listCH3 5LR: not on the flood risk listCH3 5LX: not on the flood risk listCH3 5NF: not on the flood risk listCH3 5NS: not on the flood risk listCH3 5PA: not on the flood risk listCH3 5PG: not on the flood risk listCH3 5PN: not on the flood risk listCH3 5PP: not on the flood risk listCH3 5PQ: not on the flood risk listCH3 5PR: not on the flood risk listCH3 5PT: not on the flood risk listCH3 5QA: not on the flood risk listCH3 5QB: not on the flood risk listCH3 5QD: not on the flood risk listCH3 5QE: not on the flood risk listCH3 5QF: not on the flood risk listCH3 5QG: not on the flood risk listCH3 5QJ: not on the flood risk listCH3 5QL: not on the flood risk listCH3 5QN: not on the flood risk listCH3 5QT: not on the flood risk listCH3 5QX: not on the flood risk listCH3 5RA: not on the flood risk listCH3 5RE: not on the flood risk listCH3 5RL: not on the flood risk listCH3 5RP: not on the flood risk listCH3 5RR: not on the flood risk listCH3 5RT: not on the flood risk listCH3 5RY: not on the flood risk listCH3 5SD: not on the flood risk listCH3 5SG: not on the flood risk listCH3 5SH: not on the flood risk listCH3 5SJ: not on the flood risk listCH3 5SL: not on the flood risk listCH3 5SN: not on the flood risk listCH3 5ST: not on the flood risk listCH3 5SY: not on the flood risk listCH3 5TE: not on the flood risk listCH3 5TF: not on the flood risk listCH3 5TL: not on the flood risk listCH3 5TP: not on the flood risk listCH3 5TT: not on the flood risk listCH3 5TU: not on the flood risk listCH3 5TZ: not on the flood risk listCH3 5UE: not on the flood risk listCH3 5UT: not on the flood risk listCH3 5UY: not on the flood risk listCH3 5XB: not on the flood risk listCH3 5XF: not on the flood risk listCH3 5XG: not on the flood risk listCH3 5XH: not on the flood risk listCH3 5XN: not on the flood risk listCH3 5XQ: not on the flood risk listCH3 5XS: not on the flood risk listCH3 5YB: not on the flood risk listCH3 5YF: not on the flood risk listCH3 5YN: not on the flood risk listCH3 6AB: not on the flood risk listCH3 6AD: not on the flood risk listCH3 6AE: not on the flood risk listCH3 6AF: not on the flood risk listCH3 6AG: not on the flood risk listCH3 6AJ: not on the flood risk listCH3 6AL: not on the flood risk listCH3 6AN: not on the flood risk listCH3 6AP: not on the flood risk listCH3 6AR: not on the flood risk listCH3 6AS: not on the flood risk listCH3 6AT: not on the flood risk listCH3 6AU: not on the flood risk listCH3 6AW: not on the flood risk listCH3 6AX: not on the flood risk listCH3 6AY: not on the flood risk listCH3 6AZ: not on the flood risk listCH3 6BB: not on the flood risk listCH3 6BD: not on the flood risk listCH3 6BF: not on the flood risk listCH3 6BG: not on the flood risk listCH3 6BH: not on the flood risk listCH3 6BJ: not on the flood risk listCH3 6BL: not on the flood risk listCH3 6BP: not on the flood risk listCH3 6BR: not on the flood risk listCH3 6BT: not on the flood risk listCH3 6BU: not on the flood risk listCH3 6DA: not on the flood risk listCH3 6DF: not on the flood risk listCH3 6DG: not on the flood risk listCH3 6DH: not on the flood risk listCH3 6DJ: not on the flood risk listCH3 6DL: not on the flood risk listCH3 6DN: not on the flood risk listCH3 6DP: not on the flood risk listCH3 6DR: not on the flood risk listCH3 6DW: not on the flood risk listCH3 6DY: not on the flood risk listCH3 6DZ: not on the flood risk listCH3 6ED: not on the flood risk listCH3 6EE: not on the flood risk listCH3 6EF: not on the flood risk listCH3 6EG: not on the flood risk listCH3 6EH: not on the flood risk listCH3 6EJ: not on the flood risk listCH3 6EL: not on the flood risk listCH3 6EP: not on the flood risk listCH3 6EQ: not on the flood risk listCH3 6ER: not on the flood risk listCH3 6ES: not on the flood risk listCH3 6EU: not on the flood risk listCH3 6EX: not on the flood risk listCH3 6EY: not on the flood risk listCH3 6EZ: not on the flood risk listCH3 6FA: not on the flood risk listCH3 6FD: not on the flood risk listCH3 6FR: not on the flood risk listCH3 6FS: not on the flood risk listCH3 6FX: not on the flood risk listCH3 6FY: not on the flood risk listCH3 6GA: not on the flood risk listCH3 6GB: not on the flood risk listCH3 6GD: not on the flood risk listCH3 6GE: not on the flood risk listCH3 6GU: not on the flood risk listCH3 6GW: not on the flood risk listCH3 6GX: not on the flood risk listCH3 6HA: not on the flood risk listCH3 6HJ: not on the flood risk listCH3 6HL: not on the flood risk listCH3 6HN: not on the flood risk listCH3 6HP: not on the flood risk listCH3 6HS: not on the flood risk listCH3 6HT: not on the flood risk listCH3 6HU: not on the flood risk listCH3 6HX: not on the flood risk listCH3 6HZ: not on the flood risk listCH3 6JA: not on the flood risk listCH3 6JN: not on the flood risk listCH3 6JZ: not on the flood risk listCH3 6LB: not on the flood risk listCH3 6LH: not on the flood risk listCH3 6LJ: not on the flood risk listCH3 6LL: not on the flood risk listCH3 6LP: not on the flood risk listCH3 6LT: not on the flood risk listCH3 6LW: not on the flood risk listCH3 6LX: not on the flood risk listCH3 6LY: not on the flood risk listCH3 6LZ: not on the flood risk listCH3 6NA: not on the flood risk listCH3 6NE: not on the flood risk listCH3 6NF: not on the flood risk listCH3 6NG: not on the flood risk listCH3 6NH: not on the flood risk listCH3 6NJ: not on the flood risk listCH3 6NN: not on the flood risk listCH3 6NP: not on the flood risk listCH3 6NQ: not on the flood risk listCH3 6NW: not on the flood risk listCH3 6NX: not on the flood risk listCH3 6NY: not on the flood risk listCH3 6NZ: not on the flood risk listCH3 6PA: not on the flood risk listCH3 6PB: not on the flood risk listCH3 6PD: not on the flood risk listCH3 6PE: not on the flood risk listCH3 6PF: not on the flood risk listCH3 6PH: not on the flood risk listCH3 6PJ: not on the flood risk listCH3 6PL: not on the flood risk listCH3 6PN: not on the flood risk listCH3 6PP: not on the flood risk listCH3 6PQ: not on the flood risk listCH3 6PR: not on the flood risk listCH3 6PS: not on the flood risk listCH3 6PY: not on the flood risk listCH3 6QE: not on the flood risk listCH3 6QL: not on the flood risk listCH3 6QP: not on the flood risk listCH3 6RB: not on the flood risk listCH3 6RJ: not on the flood risk listCH3 6RN: not on the flood risk listCH3 6RP: not on the flood risk listCH3 6RT: not on the flood risk listCH3 6SH: not on the flood risk listCH3 7AA: not on the flood risk listCH3 7AD: not on the flood risk listCH3 7AE: not on the flood risk listCH3 7AF: not on the flood risk listCH3 7AG: not on the flood risk listCH3 7AJ: not on the flood risk listCH3 7AN: not on the flood risk listCH3 7AP: not on the flood risk listCH3 7AR: not on the flood risk listCH3 7AS: not on the flood risk listCH3 7AU: not on the flood risk listCH3 7AX: not on the flood risk listCH3 7AZ: not on the flood risk listCH3 7BA: not on the flood risk listCH3 7BB: not on the flood risk listCH3 7BD: not on the flood risk listCH3 7BE: not on the flood risk listCH3 7BF: not on the flood risk listCH3 7BH: not on the flood risk listCH3 7BP: not on the flood risk listCH3 7BT: not on the flood risk listCH3 7BX: not on the flood risk listCH3 7BY: not on the flood risk listCH3 7DB: not on the flood risk listCH3 7DD: not on the flood risk listCH3 7DE: not on the flood risk listCH3 7DF: not on the flood risk listCH3 7DG: not on the flood risk listCH3 7DH: not on the flood risk listCH3 7DJ: not on the flood risk listCH3 7DL: not on the flood risk listCH3 7DN: not on the flood risk listCH3 7DP: not on the flood risk listCH3 7DQ: not on the flood risk listCH3 7DW: not on the flood risk listCH3 7DX: not on the flood risk listCH3 7DY: not on the flood risk listCH3 7DZ: not on the flood risk listCH3 7EA: not on the flood risk listCH3 7ED: not on the flood risk listCH3 7EE: not on the flood risk listCH3 7EF: not on the flood risk listCH3 7EJ: not on the flood risk listCH3 7EL: not on the flood risk listCH3 7EN: not on the flood risk listCH3 7ER: not on the flood risk listCH3 7ES: not on the flood risk listCH3 7EX: not on the flood risk listCH3 7EY: not on the flood risk listCH3 7EZ: not on the flood risk listCH3 7FA: not on the flood risk listCH3 7GA: not on the flood risk listCH3 7HB: not on the flood risk listCH3 7HD: not on the flood risk listCH3 7HE: not on the flood risk listCH3 7HF: not on the flood risk listCH3 7HG: not on the flood risk listCH3 7HH: not on the flood risk listCH3 7HN: not on the flood risk listCH3 7HP: not on the flood risk listCH3 7HS: not on the flood risk listCH3 7HU: not on the flood risk listCH3 7HZ: not on the flood risk listCH3 7JA: not on the flood risk listCH3 7JD: not on the flood risk listCH3 7JH: not on the flood risk listCH3 7JJ: not on the flood risk listCH3 7JL: not on the flood risk listCH3 7JN: not on the flood risk listCH3 7JR: not on the flood risk listCH3 7JS: not on the flood risk listCH3 7JT: not on the flood risk listCH3 7JU: not on the flood risk listCH3 7JY: not on the flood risk listCH3 7JZ: not on the flood risk listCH3 7LA: not on the flood risk listCH3 7LB: not on the flood risk listCH3 7LD: not on the flood risk listCH3 7LE: not on the flood risk listCH3 7LH: not on the flood risk listCH3 7LJ: not on the flood risk listCH3 7LL: not on the flood risk listCH3 7LP: not on the flood risk listCH3 7LT: not on the flood risk listCH3 7LX: not on the flood risk listCH3 7NA: not on the flood risk listCH3 7NB: not on the flood risk listCH3 7ND: not on the flood risk listCH3 7NG: not on the flood risk listCH3 7NH: not on the flood risk listCH3 7NN: not on the flood risk listCH3 7NS: not on the flood risk listCH3 7NT: not on the flood risk listCH3 7NZ: not on the flood risk listCH3 7PA: not on the flood risk listCH3 7PB: not on the flood risk listCH3 7PD: not on the flood risk listCH3 7PE: not on the flood risk listCH3 7PF: not on the flood risk listCH3 7PG: not on the flood risk listCH3 7PL: not on the flood risk listCH3 7PN: not on the flood risk listCH3 7PP: not on the flood risk listCH3 7PR: not on the flood risk listCH3 7PS: not on the flood risk listCH3 7PT: not on the flood risk listCH3 7PU: not on the flood risk listCH3 7PW: not on the flood risk listCH3 7PY: not on the flood risk listCH3 7PZ: not on the flood risk listCH3 7QA: not on the flood risk listCH3 7QB: not on the flood risk listCH3 7QD: not on the flood risk listCH3 7QE: not on the flood risk listCH3 7QF: not on the flood risk listCH3 7QH: not on the flood risk listCH3 7QJ: not on the flood risk listCH3 7QN: not on the flood risk listCH3 7QQ: not on the flood risk listCH3 7QR: not on the flood risk listCH3 7QT: not on the flood risk listCH3 7QU: not on the flood risk listCH3 7QW: not on the flood risk listCH3 7QX: not on the flood risk listCH3 7QY: not on the flood risk listCH3 7RA: not on the flood risk listCH3 7RB: not on the flood risk listCH3 7RE: not on the flood risk listCH3 7RG: not on the flood risk listCH3 7RH: not on the flood risk listCH3 7RN: not on the flood risk listCH3 7RP: not on the flood risk listCH3 7RQ: not on the flood risk listCH3 7RR: not on the flood risk listCH3 7RS: not on the flood risk listCH3 7RT: not on the flood risk listCH3 7RU: not on the flood risk listCH3 7RX: not on the flood risk listCH3 7RY: not on the flood risk listCH3 7RZ: not on the flood risk listCH3 7SN: not on the flood risk listCH3 7SY: not on the flood risk listCH3 8AA: not on the flood risk listCH3 8AD: not on the flood risk listCH3 8AE: not on the flood risk listCH3 8AF: not on the flood risk listCH3 8AG: not on the flood risk listCH3 8AH: not on the flood risk listCH3 8AJ: not on the flood risk listCH3 8AL: not on the flood risk listCH3 8AN: not on the flood risk listCH3 8AP: not on the flood risk listCH3 8AQ: not on the flood risk listCH3 8AR: not on the flood risk listCH3 8AT: not on the flood risk listCH3 8AU: not on the flood risk listCH3 8AW: not on the flood risk listCH3 8AX: not on the flood risk listCH3 8AZ: not on the flood risk listCH3 8BA: not on the flood risk listCH3 8BB: not on the flood risk listCH3 8BD: not on the flood risk listCH3 8BE: not on the flood risk listCH3 8BG: not on the flood risk listCH3 8BH: not on the flood risk listCH3 8BJ: not on the flood risk listCH3 8BQ: not on the flood risk listCH3 8BR: not on the flood risk listCH3 8BS: not on the flood risk listCH3 8BU: not on the flood risk listCH3 8BZ: not on the flood risk listCH3 8DL: not on the flood risk listCH3 8DN: not on the flood risk listCH3 8DP: not on the flood risk listCH3 8DR: not on the flood risk listCH3 8DW: not on the flood risk listCH3 8DZ: not on the flood risk listCH3 8EB: not on the flood risk listCH3 8ED: not on the flood risk listCH3 8EG: not on the flood risk listCH3 8EH: not on the flood risk listCH3 8EJ: not on the flood risk listCH3 8EL: not on the flood risk listCH3 8EN: not on the flood risk listCH3 8EP: not on the flood risk listCH3 8EQ: not on the flood risk listCH3 8ER: not on the flood risk listCH3 8ES: not on the flood risk listCH3 8ET: not on the flood risk listCH3 8EX: not on the flood risk listCH3 8EZ: not on the flood risk listCH3 8HA: not on the flood risk listCH3 8HD: not on the flood risk listCH3 8HE: not on the flood risk listCH3 8HF: not on the flood risk listCH3 8HG: not on the flood risk listCH3 8HH: not on the flood risk listCH3 8HJ: not on the flood risk listCH3 8HL: not on the flood risk listCH3 8HN: not on the flood risk listCH3 8HR: not on the flood risk listCH3 8HS: not on the flood risk listCH3 8HZ: not on the flood risk listCH3 8JD: not on the flood risk listCH3 8JF: not on the flood risk listCH3 8JN: not on the flood risk listCH3 8JP: not on the flood risk listCH3 8JQ: not on the flood risk listCH3 8JU: not on the flood risk listCH3 8JX: not on the flood risk listCH3 8LD: not on the flood risk listCH3 8LE: not on the flood risk listCH3 8LG: not on the flood risk listCH3 8LH: not on the flood risk listCH3 8LL: not on the flood risk listCH3 8LP: not on the flood risk listCH3 8LQ: not on the flood risk listCH3 8LR: not on the flood risk listCH3 8NB: not on the flood risk listCH3 8NF: not on the flood risk listCH3 8NG: not on the flood risk listCH3 8NH: not on the flood risk listCH3 8NJ: not on the flood risk listCH3 8NL: not on the flood risk listCH3 8NN: not on the flood risk listCH3 8NQ: not on the flood risk listCH3 8NU: not on the flood risk listCH3 8NW: not on the flood risk listCH3 8NX: not on the flood risk listCH3 9AD: not on the flood risk listCH3 9AE: not on the flood risk listCH3 9AF: not on the flood risk listCH3 9AG: not on the flood risk listCH3 9AH: not on the flood risk listCH3 9AN: not on the flood risk listCH3 9AP: not on the flood risk listCH3 9AQ: not on the flood risk listCH3 9AR: not on the flood risk listCH3 9AS: not on the flood risk listCH3 9AT: not on the flood risk listCH3 9AU: not on the flood risk listCH3 9AX: not on the flood risk listCH3 9AZ: not on the flood risk listCH3 9BA: not on the flood risk listCH3 9BB: not on the flood risk listCH3 9BE: not on the flood risk listCH3 9BF: not on the flood risk listCH3 9BH: not on the flood risk listCH3 9BJ: not on the flood risk listCH3 9BL: not on the flood risk listCH3 9BN: not on the flood risk listCH3 9BP: not on the flood risk listCH3 9BQ: not on the flood risk listCH3 9BR: not on the flood risk listCH3 9BS: not on the flood risk listCH3 9BU: not on the flood risk listCH3 9BY: not on the flood risk listCH3 9DB: not on the flood risk listCH3 9DE: not on the flood risk listCH3 9DJ: not on the flood risk listCH3 9DN: not on the flood risk listCH3 9DQ: not on the flood risk listCH3 9DR: not on the flood risk listCH3 9DS: not on the flood risk listCH3 9DT: not on the flood risk listCH3 9DU: not on the flood risk listCH3 9DX: not on the flood risk listCH3 9DY: not on the flood risk listCH3 9DZ: not on the flood risk listCH3 9EA: not on the flood risk listCH3 9ED: not on the flood risk listCH3 9EG: not on the flood risk listCH3 9EH: not on the flood risk listCH3 9EL: not on the flood risk listCH3 9EN: not on the flood risk listCH3 9EP: not on the flood risk listCH3 9ER: not on the flood risk listCH3 9ES: not on the flood risk listCH3 9ET: not on the flood risk listCH3 9EU: not on the flood risk listCH3 9EW: not on the flood risk listCH3 9EY: not on the flood risk listCH3 9FA: not on the flood risk listCH3 9FD: not on the flood risk listCH3 9FE: not on the flood risk listCH3 9FF: not on the flood risk listCH3 9FJ: not on the flood risk listCH3 9FP: not on the flood risk listCH3 9FR: not on the flood risk listCH3 9FW: not on the flood risk listCH3 9FY: not on the flood risk listCH3 9GA: not on the flood risk listCH3 9GB: not on the flood risk listCH3 9GE: not on the flood risk listCH3 9GF: not on the flood risk listCH3 9HA: not on the flood risk listCH3 9HB: not on the flood risk listCH3 9HG: not on the flood risk listCH3 9HJ: not on the flood risk listCH3 9HL: not on the flood risk listCH3 9HN: not on the flood risk listCH3 9HP: not on the flood risk listCH3 9HQ: not on the flood risk listCH3 9HR: not on the flood risk listCH3 9HS: not on the flood risk listCH3 9HT: not on the flood risk listCH3 9HU: not on the flood risk listCH3 9HW: not on the flood risk listCH3 9HY: not on the flood risk listCH3 9JA: not on the flood risk listCH3 9JB: not on the flood risk listCH3 9JD: not on the flood risk listCH3 9JE: not on the flood risk listCH3 9JG: not on the flood risk listCH3 9JH: not on the flood risk listCH3 9JJ: not on the flood risk listCH3 9JL: not on the flood risk listCH3 9JN: not on the flood risk listCH3 9JP: not on the flood risk listCH3 9JQ: not on the flood risk listCH3 9JR: not on the flood risk listCH3 9JS: not on the flood risk listCH3 9JT: not on the flood risk listCH3 9JU: not on the flood risk listCH3 9JW: not on the flood risk listCH3 9JY: not on the flood risk listCH3 9LA: not on the flood risk listCH3 9LB: not on the flood risk listCH3 9LE: not on the flood risk listCH3 9LF: not on the flood risk listCH3 9LG: not on the flood risk listCH3 9LH: not on the flood risk listCH3 9LJ: not on the flood risk listCH3 9LL: not on the flood risk listCH3 9LN: not on the flood risk listCH3 9LR: not on the flood risk listCH3 9NA: not on the flood risk listCH3 9NB: not on the flood risk listCH3 9ND: not on the flood risk listCH3 9NE: not on the flood risk listCH3 9NF: not on the flood risk listCH3 9NG: not on the flood risk listCH3 9NH: not on the flood risk listCH3 9NJ: not on the flood risk listCH3 9NL: not on the flood risk listCH3 9NN: not on the flood risk listCH3 9NP: not on the flood risk listCH3 9NQ: not on the flood risk listCH3 9NS: not on the flood risk listCH3 9NT: not on the flood risk listCH3 9NU: not on the flood risk listCH3 9NW: not on the flood risk listCH3 9NX: not on the flood risk listCH3 9NY: not on the flood risk listCH3 9NZ: not on the flood risk listCH3 9PB: not on the flood risk listCH3 9PD: not on the flood risk listCH3 9PF: not on the flood risk listCH3 9PG: not on the flood risk listCH3 9PH: not on the flood risk listCH3 9PJ: not on the flood risk listCH3 9PL: not on the flood risk listCH3 9PQ: not on the flood risk listCH3 9PR: not on the flood risk listCH3 9PU: not on the flood risk listCH3 9PZ: not on the flood risk listCH3 9QB: not on the flood risk listCH3 9QG: not on the flood risk listCH3 9QH: not on the flood risk listCH3 9QJ: not on the flood risk listCH3 9QL: not on the flood risk listCH3 9QS: not on the flood risk listCH3 9QX: not on the flood risk listCH3 9RB: not on the flood risk listCH3 9RE: not on the flood risk listCH3 9RL: not on the flood risk listCH3 9SE: not on the flood risk listCH3 9SL: not on the flood risk listCH3 6JQ: very low flood risk onlyCH3 6LR: very low flood risk onlyCH3 6LU: very low flood risk onlyCH3 9HF: very low flood risk onlyCH3 5AU: low flood risk at worstCH3 6EW: low flood risk at worstCH3 6JD: low flood risk at worstCH3 6LA: low flood risk at worstCH3 7LF: low flood risk at worstCH3 8NR: low flood risk at worstCH3 9PN: low flood risk at worstCH3 9PX: low flood risk at worstCH3 7HW: medium flood risk at worstCH3 8BT: medium flood risk at worstCH3 8JA: medium flood risk at worstCH3 9RD: medium flood risk at worstCH3 5AD: high flood riskCH3 5AF: high flood riskCH3 5AH: high flood riskCH3 5AJ: high flood riskCH3 5AL: high flood riskCH3 5BS: high flood riskCH3 5AQ: high flood riskCH3 5BR: high flood riskCH3 5UX: high flood riskCH3 5UL: high flood riskCH3 5UU: high flood riskCH3 5XA: high flood riskCH3 6BW: high flood riskCH3 6BZ: high flood riskCH3 6DQ: high flood riskCH3 6EA: high flood riskCH3 6JG: high flood riskCH3 6JJ: high flood riskCH3 6LG: high flood riskCH3 6QA: high flood riskCH3 6QX: high flood riskCH3 6PU: high flood riskCH3 6QD: high flood riskCH3 6QW: high flood riskCH3 7JF: high flood riskCH3 7JQ: high flood riskCH3 7JW: high flood riskCH3 7LG: high flood riskCH3 8AB: high flood riskCH3 8AY: high flood riskCH3 8BX: high flood riskCH3 8BY: high flood riskCH3 8DA: high flood riskCH3 8DE: high flood riskCH3 9BG: high flood riskCH3 9BX: high flood riskCH3 9BZ: high flood riskCH3 9LQ: high flood risk ChesterTarporleyChristleton and WavertonKelsallTarvinFarndon 19 postcodes at high or medium risk, outlined: this goes to CH3 5AD, the one with most homes and businesses at high risk19 postcodes at high or medium risk Map of every postcode in CH3, by flood risk Of the 1,112 postcodes in CH3 that ONS places, 50 have a home or business at high risk, 4 are at medium risk at worst, 14 are at low risk at worst, 4 are at very low risk only and 1,040 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 19 postcodes at high or medium risk. Places named: Chester, Christleton and Waverton, Kelsall, Tarvin. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A51A56M53 ChesterChristleton and WavertonKelsallTarvin
  • A home or business at high risk: 50
  • At medium risk at worst: 4
  • At low risk at worst: 14
  • At very low risk only: 4
  • Not on the at-risk list: 1,040
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 1,112 postcodes in CH3 that ONS places, 50 have a home or business at high risk, 4 are at medium risk at worst, 14 are at low risk at worst, 4 are at very low risk only and 1,040 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 53.1648, longitude -2.8198. 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

50 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.

CH3 5AD35 at high riskCH3 6QW35 at high riskCH3 5AF27 at high riskCH3 5BB20 at high riskCH3 5AJ18 at high riskCH3 5AR17 at high riskCH3 5AW15 at high riskCH3 5AY13 at high riskCH3 5BE12 at high riskCH3 5AP9 at high riskCH3 5UX8 at high riskCH3 8DA8 at high risk

Where the postcodes at high or medium risk lie together

  • 19 postcodes at high or medium risk, outlined on the map. CH3 5AD, is the one with most homes and businesses at high risk.

What broadband can you get in CH3?

Ofcom reports on 1,102 of the 1,112 postcodes in CH3. At 694 of them every home and business can get gigabit broadband, and at 10 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit694 of 1,102
Postcodes where every home can get superfast917 of 1,102
Postcodes where some cannot get decent broadband10 of 1,102

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 CH3 at risk of flooding?

72 of the 1,112 postcodes in CH3 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 326 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 72 of 1,112 postcodes High: 316Medium: 10Low: 188Very low: 38

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 CH3?

Homes in CH3 sold for a typical £331,250 in the 12 months to August 2026, across 470 sales, up 1.9% on the 12 months before, HM Land Registry's figures show.

£331,250 typical price, the 12 months to August 2026
12 months to August 2025
£325,000
12 months to August 2026
£331,250

▲ up 1.9% on the 12 months before

Detached£460,000 148 sales
Semi-detached£320,000 184 sales
Terraced£250,000 103 sales
Flat or maisonette£205,000 35 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 CH3

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

CH3 5287 postcodesCH3 6244 postcodesCH3 7216 postcodesCH3 8149 postcodesCH3 9216 postcodes
UK postcode format explained

Places in CH3

Towns and villages with postcodes in CH3, and how many each has here.

Chester postcodes,376Christleton and Waverton postcodes,101Tarvin postcodes,71Farndon postcodes,66Tattenhall postcodes,59

Who covers CH3

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 South and Eddisbury704
  • Chester North and Neston274
  • Runcorn and Helsby134

Police force areas

  • Cheshire1,112

Next to CH3

CH2 postcode district CH4 postcode district All CH districts Chester postcodes

"Next to" is by number: the districts before and after CH3 in the CH area.

Check a postcode

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