PO20 postcode district: Selsey and around, West Sussex

PO20 is a postcode district in West Sussex, with 1,277 postcodes in use in 7 sectors. It has postcodes in Selsey, East Wittering, Barnham and 2 more places. It is split between 2 councils: Chichester (1,117 postcodes) and Arun (160).

Postcodes in use
1,277
Sectors
7
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 PO20, by flood risk

Map of every postcode in PO20, by flood risk Of the 1,277 postcodes in PO20 that ONS places, 130 have a home or business at high risk, 72 are at medium risk at worst, 121 are at low risk at worst, 49 are at very low risk only and 905 are not on the Environment Agency's at-risk list. 6 groups of postcodes at high or medium risk are outlined: 74 postcodes at high or medium risk; 54 postcodes at high or medium risk; 12 postcodes at high or medium risk; 9 postcodes at high or medium risk; 6 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Selsey, Bognor Regis, Southbourne, Bosham, Fishbourne, Tangmere. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A27A259 PO20 0AA: not on the flood risk listPO20 0AB: not on the flood risk listPO20 0AD: not on the flood risk listPO20 0AG: not on the flood risk listPO20 0AH: not on the flood risk listPO20 0AJ: not on the flood risk listPO20 0AL: not on the flood risk listPO20 0AN: not on the flood risk listPO20 0AP: not on the flood risk listPO20 0AS: not on the flood risk listPO20 0AT: not on the flood risk listPO20 0AX: not on the flood risk listPO20 0BF: not on the flood risk listPO20 0BG: not on the flood risk listPO20 0BH: not on the flood risk listPO20 0BN: not on the flood risk listPO20 0BP: not on the flood risk listPO20 0DE: not on the flood risk listPO20 0DG: not on the flood risk listPO20 0EE: not on the flood risk listPO20 0FA: not on the flood risk listPO20 0FH: not on the flood risk listPO20 0FP: not on the flood risk listPO20 0FR: not on the flood risk listPO20 0FU: not on the flood risk listPO20 0FW: not on the flood risk listPO20 0FZ: not on the flood risk listPO20 0GF: not on the flood risk listPO20 0GJ: not on the flood risk listPO20 0HF: not on the flood risk listPO20 0HP: not on the flood risk listPO20 0HS: not on the flood risk listPO20 0HW: not on the flood risk listPO20 0JF: not on the flood risk listPO20 0JT: not on the flood risk listPO20 0JU: not on the flood risk listPO20 0JZ: not on the flood risk listPO20 0LA: not on the flood risk listPO20 0LF: not on the flood risk listPO20 0LR: not on the flood risk listPO20 0LX: not on the flood risk listPO20 0NA: not on the flood risk listPO20 0NB: not on the flood risk listPO20 0NF: not on the flood risk listPO20 0NH: not on the flood risk listPO20 0NP: not on the flood risk listPO20 0PT: not on the flood risk listPO20 0QD: not on the flood risk listPO20 0QJ: not on the flood risk listPO20 0QP: not on the flood risk listPO20 0QT: not on the flood risk listPO20 0SB: not on the flood risk listPO20 1AA: not on the flood risk listPO20 1AB: not on the flood risk listPO20 1AD: not on the flood risk listPO20 1AE: not on the flood risk listPO20 1AF: not on the flood risk listPO20 1AG: not on the flood risk listPO20 1AH: not on the flood risk listPO20 1AJ: not on the flood risk listPO20 1AL: not on the flood risk listPO20 1AN: not on the flood risk listPO20 1AQ: not on the flood risk listPO20 1AS: not on the flood risk listPO20 1AT: not on the flood risk listPO20 1AU: not on the flood risk listPO20 1AX: not on the flood risk listPO20 1AZ: not on the flood risk listPO20 1BA: not on the flood risk listPO20 1BD: not on the flood risk listPO20 1BE: not on the flood risk listPO20 1BF: not on the flood risk listPO20 1BH: not on the flood risk listPO20 1BJ: not on the flood risk listPO20 1BL: not on the flood risk listPO20 1DY: not on the flood risk listPO20 1DZ: not on the flood risk listPO20 1EA: not on the flood risk listPO20 1ED: not on the flood risk listPO20 1EE: not on the flood risk listPO20 1EG: not on the flood risk listPO20 1EH: not on the flood risk listPO20 1EJ: not on the flood risk listPO20 1EN: not on the flood risk listPO20 1EQ: not on the flood risk listPO20 1JG: not on the flood risk listPO20 1JJ: not on the flood risk listPO20 1JL: not on the flood risk listPO20 1JN: not on the flood risk listPO20 1JS: not on the flood risk listPO20 1JX: not on the flood risk listPO20 1JY: not on the flood risk listPO20 1LA: not on the flood risk listPO20 1LB: not on the flood risk listPO20 1LF: not on the flood risk listPO20 1LG: not on the flood risk listPO20 1LH: not on the flood risk listPO20 1LL: not on the flood risk listPO20 1LP: not on the flood risk listPO20 1LQ: not on the flood risk listPO20 1LR: not on the flood risk listPO20 1LS: not on the flood risk listPO20 1LT: not on the flood risk listPO20 1LU: not on the flood risk listPO20 1LW: not on the flood risk listPO20 1LX: not on the flood risk listPO20 1LY: not on the flood risk listPO20 1LZ: not on the flood risk listPO20 1ND: not on the flood risk listPO20 1NG: not on the flood risk listPO20 1NL: not on the flood risk listPO20 1NP: not on the flood risk listPO20 1NW: not on the flood risk listPO20 1PE: not on the flood risk listPO20 1PF: not on the flood risk listPO20 1PN: not on the flood risk listPO20 1PQ: not on the flood risk listPO20 1PR: not on the flood risk listPO20 1PW: not on the flood risk listPO20 1PY: not on the flood risk listPO20 1QA: not on the flood risk listPO20 1QB: not on the flood risk listPO20 1QD: not on the flood risk listPO20 1QH: not on the flood risk listPO20 1YU: not on the flood risk listPO20 2AA: not on the flood risk listPO20 2AE: not on the flood risk listPO20 2AF: not on the flood risk listPO20 2AJ: not on the flood risk listPO20 2AL: not on the flood risk listPO20 2AN: not on the flood risk listPO20 2AQ: not on the flood risk listPO20 2AS: not on the flood risk listPO20 2AX: not on the flood risk listPO20 2AZ: not on the flood risk listPO20 2BA: not on the flood risk listPO20 2BB: not on the flood risk listPO20 2BD: not on the flood risk listPO20 2BG: not on the flood risk listPO20 2BH: not on the flood risk listPO20 2BJ: not on the flood risk listPO20 2BL: not on the flood risk listPO20 2BN: not on the flood risk listPO20 2BQ: not on the flood risk listPO20 2BT: not on the flood risk listPO20 2BU: not on the flood risk listPO20 2BX: not on the flood risk listPO20 2BY: not on the flood risk listPO20 2DA: not on the flood risk listPO20 2DB: not on the flood risk listPO20 2DD: not on the flood risk listPO20 2DG: not on the flood risk listPO20 2DL: not on the flood risk listPO20 2DR: not on the flood risk listPO20 2DS: not on the flood risk listPO20 2DT: not on the flood risk listPO20 2DX: not on the flood risk listPO20 2DY: not on the flood risk listPO20 2EA: not on the flood risk listPO20 2EE: not on the flood risk listPO20 2EG: not on the flood risk listPO20 2EJ: not on the flood risk listPO20 2EL: not on the flood risk listPO20 2EN: not on the flood risk listPO20 2ER: not on the flood risk listPO20 2ES: not on the flood risk listPO20 2ET: not on the flood risk listPO20 2EU: not on the flood risk listPO20 2EW: not on the flood risk listPO20 2EX: not on the flood risk listPO20 2EY: not on the flood risk listPO20 2FA: not on the flood risk listPO20 2FB: not on the flood risk listPO20 2FD: not on the flood risk listPO20 2FJ: not on the flood risk listPO20 2FT: not on the flood risk listPO20 2GA: not on the flood risk listPO20 2GG: not on the flood risk listPO20 2GU: not on the flood risk listPO20 2GX: not on the flood risk listPO20 2GY: not on the flood risk listPO20 2HA: not on the flood risk listPO20 2HH: not on the flood risk listPO20 2HJ: not on the flood risk listPO20 2HP: not on the flood risk listPO20 2HR: not on the flood risk listPO20 2HS: not on the flood risk listPO20 2HT: not on the flood risk listPO20 2HZ: not on the flood risk listPO20 2JB: not on the flood risk listPO20 2JD: not on the flood risk listPO20 2JL: not on the flood risk listPO20 2JP: not on the flood risk listPO20 2JW: not on the flood risk listPO20 2JZ: not on the flood risk listPO20 2LA: not on the flood risk listPO20 2LG: not on the flood risk listPO20 2LH: not on the flood risk listPO20 2LL: not on the flood risk listPO20 2LP: not on the flood risk listPO20 2NA: not on the flood risk listPO20 2NE: not on the flood risk listPO20 2NL: not on the flood risk listPO20 2NZ: not on the flood risk listPO20 2PA: not on the flood risk listPO20 2XZ: not on the flood risk listPO20 3AA: not on the flood risk listPO20 3AB: not on the flood risk listPO20 3AD: not on the flood risk listPO20 3AE: not on the flood risk listPO20 3AF: not on the flood risk listPO20 3AG: not on the flood risk listPO20 3AJ: not on the flood risk listPO20 3AR: not on the flood risk listPO20 3AU: not on the flood risk listPO20 3AW: not on the flood risk listPO20 3AY: not on the flood risk listPO20 3BB: not on the flood risk listPO20 3BE: not on the flood risk listPO20 3BG: not on the flood risk listPO20 3BN: not on the flood risk listPO20 3BP: not on the flood risk listPO20 3BS: not on the flood risk listPO20 3BU: not on the flood risk listPO20 3BY: not on the flood risk listPO20 3BZ: not on the flood risk listPO20 3DA: not on the flood risk listPO20 3DD: not on the flood risk listPO20 3DE: not on the flood risk listPO20 3DF: not on the flood risk listPO20 3GX: not on the flood risk listPO20 3JT: not on the flood risk listPO20 3NH: not on the flood risk listPO20 3NJ: not on the flood risk listPO20 3QG: not on the flood risk listPO20 3RB: not on the flood risk listPO20 3RD: not on the flood risk listPO20 3RF: not on the flood risk listPO20 3RP: not on the flood risk listPO20 3RS: not on the flood risk listPO20 3RT: not on the flood risk listPO20 3SA: not on the flood risk listPO20 3SB: not on the flood risk listPO20 3SD: not on the flood risk listPO20 3SE: not on the flood risk listPO20 3SJ: not on the flood risk listPO20 3SL: not on the flood risk listPO20 3SQ: not on the flood risk listPO20 3SR: not on the flood risk listPO20 3ST: not on the flood risk listPO20 3TG: not on the flood risk listPO20 3TH: not on the flood risk listPO20 3TQ: not on the flood risk listPO20 3TU: not on the flood risk listPO20 3UA: not on the flood risk listPO20 3UE: not on the flood risk listPO20 3UL: not on the flood risk listPO20 3UU: not on the flood risk listPO20 3UX: not on the flood risk listPO20 3UZ: not on the flood risk listPO20 3XA: not on the flood risk listPO20 3XD: not on the flood risk listPO20 3XE: not on the flood risk listPO20 3XR: not on the flood risk listPO20 3XX: not on the flood risk listPO20 7AE: not on the flood risk listPO20 7AF: not on the flood risk listPO20 7AJ: not on the flood risk listPO20 7AP: not on the flood risk listPO20 7AS: not on the flood risk listPO20 7AT: not on the flood risk listPO20 7AX: not on the flood risk listPO20 7AY: not on the flood risk listPO20 7BA: not on the flood risk listPO20 7BE: not on the flood risk listPO20 7BH: not on the flood risk listPO20 7BJ: not on the flood risk listPO20 7BL: not on the flood risk listPO20 7BQ: not on the flood risk listPO20 7BS: not on the flood risk listPO20 7BT: not on the flood risk listPO20 7BU: not on the flood risk listPO20 7BY: not on the flood risk listPO20 7BZ: not on the flood risk listPO20 7DA: not on the flood risk listPO20 7DB: not on the flood risk listPO20 7DD: not on the flood risk listPO20 7DE: not on the flood risk listPO20 7DH: not on the flood risk listPO20 7DN: not on the flood risk listPO20 7DQ: not on the flood risk listPO20 7DR: not on the flood risk listPO20 7DS: not on the flood risk listPO20 7DU: not on the flood risk listPO20 7DW: not on the flood risk listPO20 7DX: not on the flood risk listPO20 7DY: not on the flood risk listPO20 7DZ: not on the flood risk listPO20 7EB: not on the flood risk listPO20 7ED: not on the flood risk listPO20 7EF: not on the flood risk listPO20 7EG: not on the flood risk listPO20 7EQ: not on the flood risk listPO20 7EW: not on the flood risk listPO20 7EX: not on the flood risk listPO20 7FA: not on the flood risk listPO20 7FB: not on the flood risk listPO20 7FD: not on the flood risk listPO20 7FE: not on the flood risk listPO20 7FF: not on the flood risk listPO20 7FG: not on the flood risk listPO20 7FN: not on the flood risk listPO20 7FS: not on the flood risk listPO20 7GB: not on the flood risk listPO20 7HA: not on the flood risk listPO20 7HB: not on the flood risk listPO20 7HH: not on the flood risk listPO20 7HL: not on the flood risk listPO20 7HP: not on the flood risk listPO20 7HS: not on the flood risk listPO20 7HT: not on the flood risk listPO20 7HX: not on the flood risk listPO20 7HY: not on the flood risk listPO20 7HZ: not on the flood risk listPO20 7JA: not on the flood risk listPO20 7JB: not on the flood risk listPO20 7JD: not on the flood risk listPO20 7JE: not on the flood risk listPO20 7JF: not on the flood risk listPO20 7JG: not on the flood risk listPO20 7JH: not on the flood risk listPO20 7JN: not on the flood risk listPO20 7JQ: not on the flood risk listPO20 7JR: not on the flood risk listPO20 7JT: not on the flood risk listPO20 7JU: not on the flood risk listPO20 7JX: not on the flood risk listPO20 7JY: not on the flood risk listPO20 7LB: not on the flood risk listPO20 7LD: not on the flood risk listPO20 7LE: not on the flood risk listPO20 7LF: not on the flood risk listPO20 7LG: not on the flood risk listPO20 7LH: not on the flood risk listPO20 7LJ: not on the flood risk listPO20 7LL: not on the flood risk listPO20 7LN: not on the flood risk listPO20 7LP: not on the flood risk listPO20 7LQ: not on the flood risk listPO20 7LS: not on the flood risk listPO20 7NG: not on the flood risk listPO20 7NJ: not on the flood risk listPO20 7NL: not on the flood risk listPO20 7NT: not on the flood risk listPO20 7NU: not on the flood risk listPO20 7PJ: not on the flood risk listPO20 7PL: not on the flood risk listPO20 7PN: not on the flood risk listPO20 7PP: not on the flood risk listPO20 7PR: not on the flood risk listPO20 7PS: not on the flood risk listPO20 7PT: not on the flood risk listPO20 7PU: not on the flood risk listPO20 7PW: not on the flood risk listPO20 7PX: not on the flood risk listPO20 7PY: not on the flood risk listPO20 7PZ: not on the flood risk listPO20 7QA: not on the flood risk listPO20 7QB: not on the flood risk listPO20 7QE: not on the flood risk listPO20 7QF: not on the flood risk listPO20 7QG: not on the flood risk listPO20 7QH: not on the flood risk listPO20 7QJ: not on the flood risk listPO20 7QL: not on the flood risk listPO20 7QN: not on the flood risk listPO20 7QP: not on the flood risk listPO20 7QQ: not on the flood risk listPO20 7QR: not on the flood risk listPO20 7QS: not on the flood risk listPO20 7QU: not on the flood risk listPO20 7QW: not on the flood risk listPO20 7QZ: not on the flood risk listPO20 7RD: not on the flood risk listPO20 7RE: not on the flood risk listPO20 7RF: not on the flood risk listPO20 7RG: not on the flood risk listPO20 7RH: not on the flood risk listPO20 7RJ: not on the flood risk listPO20 7RN: not on the flood risk listPO20 8AG: not on the flood risk listPO20 8AL: not on the flood risk listPO20 8AN: not on the flood risk listPO20 8AP: not on the flood risk listPO20 8AS: not on the flood risk listPO20 8AY: not on the flood risk listPO20 8AZ: not on the flood risk listPO20 8BA: not on the flood risk listPO20 8BQ: not on the flood risk listPO20 8BY: not on the flood risk listPO20 8EG: not on the flood risk listPO20 8FA: not on the flood risk listPO20 8FJ: not on the flood risk listPO20 8FN: not on the flood risk listPO20 8FP: not on the flood risk listPO20 8FT: not on the flood risk listPO20 8GA: not on the flood risk listPO20 8GD: not on the flood risk listPO20 8GH: not on the flood risk listPO20 8GJ: not on the flood risk listPO20 8HU: not on the flood risk listPO20 8HX: not on the flood risk listPO20 8JA: not on the flood risk listPO20 8JD: not on the flood risk listPO20 8JF: not on the flood risk listPO20 8JG: not on the flood risk listPO20 8JQ: not on the flood risk listPO20 8LB: not on the flood risk listPO20 8LD: not on the flood risk listPO20 8LH: not on the flood risk listPO20 8LJ: not on the flood risk listPO20 8LN: not on the flood risk listPO20 8LR: not on the flood risk listPO20 8LW: not on the flood risk listPO20 8LX: not on the flood risk listPO20 8LZ: not on the flood risk listPO20 8NB: not on the flood risk listPO20 8ND: not on the flood risk listPO20 8NP: not on the flood risk listPO20 8NW: not on the flood risk listPO20 8PR: not on the flood risk listPO20 8PX: not on the flood risk listPO20 8PZ: not on the flood risk listPO20 8QA: not on the flood risk listPO20 8QB: not on the flood risk listPO20 8QE: not on the flood risk listPO20 8QF: not on the flood risk listPO20 8QG: not on the flood risk listPO20 8QJ: not on the flood risk listPO20 8QL: not on the flood risk listPO20 8QP: not on the flood risk listPO20 8QQ: not on the flood risk listPO20 8SS: not on the flood risk listPO20 9AA: not on the flood risk listPO20 9AB: not on the flood risk listPO20 9AE: not on the flood risk listPO20 9AG: not on the flood risk listPO20 9AH: not on the flood risk listPO20 9AL: not on the flood risk listPO20 9AN: not on the flood risk listPO20 9AX: not on the flood risk listPO20 9BA: not on the flood risk listPO20 9BD: not on the flood risk listPO20 9BN: not on the flood risk listPO20 9BU: not on the flood risk listPO20 9DA: not on the flood risk listPO20 9DH: not on the flood risk listPO20 9DS: not on the flood risk listPO20 9DU: not on the flood risk listPO20 9DX: not on the flood risk listPO20 9DY: not on the flood risk listPO20 9DZ: not on the flood risk listPO20 9EA: not on the flood risk listPO20 9ET: not on the flood risk listPO20 9EX: not on the flood risk listPO20 9EY: not on the flood risk listPO20 9HD: not on the flood risk listPO20 9HL: not on the flood risk listPO20 9HP: not on the flood risk listPO20 0JR: very low flood risk onlyPO20 0NQ: very low flood risk onlyPO20 0JN: very low flood risk onlyPO20 0LJ: very low flood risk onlyPO20 1LJ: very low flood risk onlyPO20 1LN: very low flood risk onlyPO20 1NB: very low flood risk onlyPO20 1PX: very low flood risk onlyPO20 1PS: very low flood risk onlyPO20 1PT: very low flood risk onlyPO20 1PU: very low flood risk onlyPO20 1XJ: very low flood risk onlyPO20 2AG: very low flood risk onlyPO20 3TF: very low flood risk onlyPO20 7EH: very low flood risk onlyPO20 7JJ: very low flood risk onlyPO20 7JP: very low flood risk onlyPO20 7JS: very low flood risk onlyPO20 7LR: very low flood risk onlyPO20 7LT: very low flood risk onlyPO20 7LU: very low flood risk onlyPO20 7LW: very low flood risk onlyPO20 7NA: very low flood risk onlyPO20 7ND: very low flood risk onlyPO20 7NF: very low flood risk onlyPO20 7NX: very low flood risk onlyPO20 7NY: very low flood risk onlyPO20 7QX: very low flood risk onlyPO20 7RP: very low flood risk onlyPO20 8AA: very low flood risk onlyPO20 8AB: very low flood risk onlyPO20 8AD: very low flood risk onlyPO20 8AT: very low flood risk onlyPO20 8AX: very low flood risk onlyPO20 8JT: very low flood risk onlyPO20 8JZ: very low flood risk onlyPO20 8LQ: very low flood risk onlyPO20 8LT: very low flood risk onlyPO20 9DG: very low flood risk onlyPO20 9JD: very low flood risk onlyPO20 0PP: low flood risk at worstPO20 0AY: low flood risk at worstPO20 0AZ: low flood risk at worstPO20 0HU: low flood risk at worstPO20 0DU: low flood risk at worstPO20 0EL: low flood risk at worstPO20 0HE: low flood risk at worstPO20 0HG: low flood risk at worstPO20 0HY: low flood risk at worstPO20 0JE: low flood risk at worstPO20 0NY: low flood risk at worstPO20 0SF: low flood risk at worstPO20 0SA: low flood risk at worstPO20 0SE: low flood risk at worstPO20 0SH: low flood risk at worstPO20 0TZ: low flood risk at worstPO20 1EL: low flood risk at worstPO20 2DN: low flood risk at worstPO20 2DU: low flood risk at worstPO20 2FH: low flood risk at worstPO20 2GL: low flood risk at worstPO20 3RL: low flood risk at worstPO20 3GU: low flood risk at worstPO20 3QY: low flood risk at worstPO20 3RU: low flood risk at worstPO20 3TJ: low flood risk at worstPO20 3TR: low flood risk at worstPO20 3TS: low flood risk at worstPO20 3TT: low flood risk at worstPO20 3UB: low flood risk at worstPO20 3UP: low flood risk at worstPO20 3UR: low flood risk at worstPO20 3UT: low flood risk at worstPO20 7BP: low flood risk at worstPO20 7AD: low flood risk at worstPO20 7BN: low flood risk at worstPO20 7DF: low flood risk at worstPO20 7NE: low flood risk at worstPO20 7NN: low flood risk at worstPO20 7NW: low flood risk at worstPO20 7NS: low flood risk at worstPO20 8HR: low flood risk at worstPO20 8AQ: low flood risk at worstPO20 8DX: low flood risk at worstPO20 8HN: low flood risk at worstPO20 8HP: low flood risk at worstPO20 8JX: low flood risk at worstPO20 8JU: low flood risk at worstPO20 8NH: low flood risk at worstPO20 8NJ: low flood risk at worstPO20 8NL: low flood risk at worstPO20 8NX: low flood risk at worstPO20 8PJ: low flood risk at worstPO20 8PS: low flood risk at worstPO20 8PT: low flood risk at worstPO20 8PU: low flood risk at worstPO20 8PY: low flood risk at worstPO20 8UA: low flood risk at worstPO20 8RG: low flood risk at worstPO20 8RL: low flood risk at worstPO20 8SR: low flood risk at worstPO20 9AY: low flood risk at worstPO20 9DD: low flood risk at worstPO20 9ED: low flood risk at worstPO20 0PB: medium flood risk at worstPO20 0BX: medium flood risk at worstPO20 0EB: medium flood risk at worstPO20 0UB: medium flood risk at worstPO20 0PA: medium flood risk at worstPO20 0PL: medium flood risk at worstPO20 0TN: medium flood risk at worstPO20 2DP: medium flood risk at worstPO20 3UH: medium flood risk at worstPO20 3QZ: medium flood risk at worstPO20 3QT: medium flood risk at worstPO20 3QS: medium flood risk at worstPO20 3QU: medium flood risk at worstPO20 3RH: medium flood risk at worstPO20 3TL: medium flood risk at worstPO20 3TP: medium flood risk at worstPO20 3UN: medium flood risk at worstPO20 3UQ: medium flood risk at worstPO20 7AN: medium flood risk at worstPO20 7DJ: medium flood risk at worstPO20 8FY: medium flood risk at worstPO20 8BJ: medium flood risk at worstPO20 8BN: medium flood risk at worstPO20 8DA: medium flood risk at worstPO20 8DF: medium flood risk at worstPO20 8DL: medium flood risk at worstPO20 8DP: medium flood risk at worstPO20 8DR: medium flood risk at worstPO20 8PB: medium flood risk at worstPO20 8JN: medium flood risk at worstPO20 8NU: medium flood risk at worstPO20 8QU: medium flood risk at worstPO20 9BG: medium flood risk at worstPO20 9DF: medium flood risk at worstPO20 9DP: medium flood risk at worstPO20 9DR: medium flood risk at worstPO20 9EJ: medium flood risk at worstPO20 0BY: high flood riskPO20 0DA: high flood riskPO20 0DB: high flood riskPO20 0DJ: high flood riskPO20 0DL: high flood riskPO20 0DN: high flood riskPO20 0DP: high flood riskPO20 0DR: high flood riskPO20 0EG: high flood riskPO20 0EH: high flood riskPO20 0ER: high flood riskPO20 0ES: high flood riskPO20 0ET: high flood riskPO20 0EU: high flood riskPO20 0EW: high flood riskPO20 0EY: high flood riskPO20 0EZ: high flood riskPO20 0HD: high flood riskPO20 0NU: high flood riskPO20 0NR: high flood riskPO20 0NX: high flood riskPO20 0PD: high flood riskPO20 0PF: high flood riskPO20 0PJ: high flood riskPO20 0PR: high flood riskPO20 0SZ: high flood riskPO20 0SR: high flood riskPO20 0SX: high flood riskPO20 0TX: high flood riskPO20 0UQ: high flood riskPO20 0UG: high flood riskPO20 1PB: high flood riskPO20 1PD: high flood riskPO20 2DW: high flood riskPO20 7AA: high flood riskPO20 7AG: high flood riskPO20 7BB: high flood riskPO20 7BG: high flood riskPO20 7DL: high flood riskPO20 7EE: high flood riskPO20 7EJ: high flood riskPO20 7HJ: high flood riskPO20 7JW: high flood riskPO20 7NB: high flood riskPO20 7NR: high flood riskPO20 7PA: high flood riskPO20 7PE: high flood riskPO20 8AJ: high flood riskPO20 8AU: high flood riskPO20 8DZ: high flood riskPO20 8EB: high flood riskPO20 8DJ: high flood riskPO20 8DD: high flood riskPO20 8DG: high flood riskPO20 8DN: high flood riskPO20 8DW: high flood riskPO20 8DY: high flood riskPO20 8ED: high flood riskPO20 8EF: high flood riskPO20 8ET: high flood riskPO20 8EU: high flood riskPO20 8EY: high flood riskPO20 8EZ: high flood riskPO20 8FE: high flood riskPO20 8FF: high flood riskPO20 8PF: high flood riskPO20 8HB: high flood riskPO20 8HD: high flood riskPO20 8HE: high flood riskPO20 8HH: high flood riskPO20 8JH: high flood riskPO20 8HQ: high flood riskPO20 8JJ: high flood riskPO20 8JP: high flood riskPO20 8JR: high flood riskPO20 8RX: high flood riskPO20 8LG: high flood riskPO20 8PP: high flood riskPO20 8PH: high flood riskPO20 8QH: high flood riskPO20 9BF: high flood riskPO20 9BH: high flood riskPO20 9BJ: high flood riskPO20 9BL: high flood riskPO20 9BQ: high flood riskPO20 9BS: high flood riskPO20 9BT: high flood riskPO20 9BX: high flood riskPO20 9DT: high flood riskPO20 9EL: high flood risk SelseyBognor RegisSouthbourneBoshamFishbourneTangmere 74 postcodes at high or medium risk, outlined: this goes to PO20 0SY, the one with most homes and businesses at high risk74 postcodes at high or medium risk54 postcodes at high or medium risk, outlined: this goes to PO20 8HQ, the one with most homes and businesses at high risk54 postcodes at high or medium risk9 postcodes at high or medium risk, outlined: this goes to PO20 8JW, the one with most homes and businesses at high risk9 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to PO20 3XL, the one with most homes and businesses at high risk6 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to PO20 3UD, the one with most homes and businesses at high risk6 postcodes at high or medium risk Map of every postcode in PO20, by flood risk Of the 1,277 postcodes in PO20 that ONS places, 130 have a home or business at high risk, 72 are at medium risk at worst, 121 are at low risk at worst, 49 are at very low risk only and 905 are not on the Environment Agency's at-risk list. 6 groups of postcodes at high or medium risk are outlined: 74 postcodes at high or medium risk; 54 postcodes at high or medium risk; 12 postcodes at high or medium risk; 9 postcodes at high or medium risk; 6 postcodes at high or medium risk; 6 postcodes at high or medium risk. Places named: Selsey, Bognor Regis, Chichester, Barnham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. SelseyBognor RegisChichesterBarnham 74 postcodes at high or medium risk, outlined: this goes to PO20 0SY, the one with most homes and businesses at high risk74 postcodes at high or medium risk
  • A home or business at high risk: 130
  • At medium risk at worst: 72
  • At low risk at worst: 121
  • At very low risk only: 49
  • Not on the at-risk list: 905
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 1,277 postcodes in PO20 that ONS places, 130 have a home or business at high risk, 72 are at medium risk at worst, 121 are at low risk at worst, 49 are at very low risk only and 905 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 160 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 50.7865, longitude -0.7815. 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

130 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.

PO20 9BJ117 at high riskPO20 7PA81 at high riskPO20 0SY65 at high riskPO20 8JW61 at high riskPO20 8SB55 at high riskPO20 9HB39 at high riskPO20 0PD38 at high riskPO20 9EL35 at high riskPO20 8HQ33 at high riskPO20 8HH32 at high riskPO20 0DL31 at high riskPO20 0NX31 at high risk

Where the postcodes at high or medium risk lie together

  • 74 postcodes at high or medium risk, outlined on the map. PO20 0SY, is the one with most homes and businesses at high risk.
  • 54 postcodes at high or medium risk, outlined on the map. PO20 8HQ, is the one with most homes and businesses at high risk.
  • 12 postcodes at high or medium risk, outlined on the map. PO20 9HB, is the one with most homes and businesses at high risk.
  • 9 postcodes at high or medium risk, outlined on the map. PO20 8JW, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. PO20 3XL, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. PO20 3UD, is the one with most homes and businesses at high risk.

What broadband can you get in PO20?

Ofcom reports on 1,255 of the 1,277 postcodes in PO20. At 747 of them every home and business can get gigabit broadband, and at 4 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit747 of 1,255
Postcodes where every home can get superfast1,102 of 1,255
Postcodes where some cannot get decent broadband4 of 1,255

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 PO20 at risk of flooding?

372 of the 1,277 postcodes in PO20 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 3,095 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 372 of 1,277 postcodes High: 1,781Medium: 1,314Low: 2,676Very low: 907

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 PO20?

Homes in PO20 sold for a typical £385,000 in the 12 months to August 2026, across 495 sales, up 4.1% on the 12 months before, HM Land Registry's figures show.

£385,000 typical price, the 12 months to August 2026
12 months to August 2025
£370,000
12 months to August 2026
£385,000

▲ up 4.1% on the 12 months before

Detached£500,000 239 sales
Semi-detached£360,000 148 sales
Terraced£297,500 68 sales
Flat or maisonette£171,300 40 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 PO20

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

PO20 0275 postcodesPO20 1124 postcodesPO20 2197 postcodesPO20 3153 postcodesPO20 7199 postcodesPO20 8244 postcodesPO20 985 postcodes
UK postcode format explained

Places in PO20

Towns and villages with postcodes in PO20, and how many each has here.

Selsey postcodes,339East Wittering postcodes,188Barnham postcodes,130Tangmere postcodes,88Chichester postcodes,62

Who covers PO20

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

  • Chichester1,125
  • Arundel and South Downs152

Police force areas

  • Sussex1,277

Next to PO20

PO19 postcode district PO21 postcode district All PO districts Selsey postcodes

"Next to" is by number: the districts before and after PO20 in the PO area.

Check a postcode

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