RG4 postcode district: Caversham and around

RG4 is a postcode district in England, with 1,000 postcodes in use in 5 sectors. It has postcodes in Caversham, Sonning Common and Reading. It is split between 3 councils: Reading (702 postcodes), South Oxfordshire (252) and Wokingham (46). 252 of its 1,000 postcodes are in Oxfordshire. ONS lists no county for the other 748.

Postcodes in use
1,000
Sectors
5
Councils
3 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 RG4, by flood risk

Map of every postcode in RG4, by flood risk Of the 1,000 postcodes in RG4 that ONS places, 59 have a home or business at high risk, 58 are at medium risk at worst, 32 are at low risk at worst and 851 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 81 postcodes at high or medium risk; 7 postcodes at high or medium risk; 7 postcodes at high or medium risk. Places named: Caversham, Reading, Woodley, Henley-on-Thames, Sonning Common, Lower Shiplake. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A4A329A4155A327 RG4 5DL: not on the flood risk listRG4 5DN: not on the flood risk listRG4 5DP: not on the flood risk listRG4 5DR: not on the flood risk listRG4 5DU: not on the flood risk listRG4 5EA: not on the flood risk listRG4 5EB: not on the flood risk listRG4 5EH: not on the flood risk listRG4 5EJ: not on the flood risk listRG4 5EL: not on the flood risk listRG4 5EN: not on the flood risk listRG4 5EP: not on the flood risk listRG4 5ER: not on the flood risk listRG4 5ES: not on the flood risk listRG4 5ET: not on the flood risk listRG4 5EU: not on the flood risk listRG4 5EW: not on the flood risk listRG4 5HB: not on the flood risk listRG4 5HG: not on the flood risk listRG4 5HH: not on the flood risk listRG4 5HJ: not on the flood risk listRG4 5HP: not on the flood risk listRG4 5HR: not on the flood risk listRG4 5HT: not on the flood risk listRG4 5HU: not on the flood risk listRG4 5JA: not on the flood risk listRG4 5JB: not on the flood risk listRG4 5JD: not on the flood risk listRG4 5JE: not on the flood risk listRG4 5JH: not on the flood risk listRG4 5JJ: not on the flood risk listRG4 5JL: not on the flood risk listRG4 5JP: not on the flood risk listRG4 5JR: not on the flood risk listRG4 5JT: not on the flood risk listRG4 5JU: not on the flood risk listRG4 5LA: not on the flood risk listRG4 5LD: not on the flood risk listRG4 5LL: not on the flood risk listRG4 5LP: not on the flood risk listRG4 6AA: not on the flood risk listRG4 6AD: not on the flood risk listRG4 6AF: not on the flood risk listRG4 6BB: not on the flood risk listRG4 6DA: not on the flood risk listRG4 6DB: not on the flood risk listRG4 6DD: not on the flood risk listRG4 6DH: not on the flood risk listRG4 6DJ: not on the flood risk listRG4 6DN: not on the flood risk listRG4 6DP: not on the flood risk listRG4 6DS: not on the flood risk listRG4 6DW: not on the flood risk listRG4 6DX: not on the flood risk listRG4 6GA: not on the flood risk listRG4 6GB: not on the flood risk listRG4 6GD: not on the flood risk listRG4 6GE: not on the flood risk listRG4 6GG: not on the flood risk listRG4 6GH: not on the flood risk listRG4 6GJ: not on the flood risk listRG4 6LA: not on the flood risk listRG4 6LH: not on the flood risk listRG4 6LJ: not on the flood risk listRG4 6LR: not on the flood risk listRG4 6LS: not on the flood risk listRG4 6LT: not on the flood risk listRG4 6LU: not on the flood risk listRG4 6LX: not on the flood risk listRG4 6LY: not on the flood risk listRG4 6LZ: not on the flood risk listRG4 6NA: not on the flood risk listRG4 6NB: not on the flood risk listRG4 6ND: not on the flood risk listRG4 6NF: not on the flood risk listRG4 6NG: not on the flood risk listRG4 6NH: not on the flood risk listRG4 6NL: not on the flood risk listRG4 6NN: not on the flood risk listRG4 6NP: not on the flood risk listRG4 6NQ: not on the flood risk listRG4 6NR: not on the flood risk listRG4 6NT: not on the flood risk listRG4 6NX: not on the flood risk listRG4 6NY: not on the flood risk listRG4 6NZ: not on the flood risk listRG4 6PB: not on the flood risk listRG4 6PD: not on the flood risk listRG4 6PE: not on the flood risk listRG4 6PF: not on the flood risk listRG4 6PG: not on the flood risk listRG4 6PH: not on the flood risk listRG4 6PJ: not on the flood risk listRG4 6PL: not on the flood risk listRG4 6PP: not on the flood risk listRG4 6PQ: not on the flood risk listRG4 6PR: not on the flood risk listRG4 6PS: not on the flood risk listRG4 6PU: not on the flood risk listRG4 6PW: not on the flood risk listRG4 6PY: not on the flood risk listRG4 6PZ: not on the flood risk listRG4 6QB: not on the flood risk listRG4 6QD: not on the flood risk listRG4 6QG: not on the flood risk listRG4 6QJ: not on the flood risk listRG4 6QN: not on the flood risk listRG4 6QP: not on the flood risk listRG4 6QR: not on the flood risk listRG4 6QS: not on the flood risk listRG4 6QT: not on the flood risk listRG4 6QW: not on the flood risk listRG4 6QX: not on the flood risk listRG4 6QZ: not on the flood risk listRG4 6RA: not on the flood risk listRG4 6RB: not on the flood risk listRG4 6RD: not on the flood risk listRG4 6RE: not on the flood risk listRG4 6RG: not on the flood risk listRG4 6RH: not on the flood risk listRG4 6RJ: not on the flood risk listRG4 6RN: not on the flood risk listRG4 6RP: not on the flood risk listRG4 6RR: not on the flood risk listRG4 6RS: not on the flood risk listRG4 6RT: not on the flood risk listRG4 6RU: not on the flood risk listRG4 6RY: not on the flood risk listRG4 6SA: not on the flood risk listRG4 6SB: not on the flood risk listRG4 6SF: not on the flood risk listRG4 6SG: not on the flood risk listRG4 6SH: not on the flood risk listRG4 6SL: not on the flood risk listRG4 6SP: not on the flood risk listRG4 6SQ: not on the flood risk listRG4 6SR: not on the flood risk listRG4 6SS: not on the flood risk listRG4 6ST: not on the flood risk listRG4 6SU: not on the flood risk listRG4 6SX: not on the flood risk listRG4 6SY: not on the flood risk listRG4 6SZ: not on the flood risk listRG4 6TA: not on the flood risk listRG4 6TB: not on the flood risk listRG4 6TD: not on the flood risk listRG4 6TE: not on the flood risk listRG4 6TG: not on the flood risk listRG4 6TH: not on the flood risk listRG4 6TJ: not on the flood risk listRG4 6TL: not on the flood risk listRG4 6TQ: not on the flood risk listRG4 6UA: not on the flood risk listRG4 6UH: not on the flood risk listRG4 6UN: not on the flood risk listRG4 6UP: not on the flood risk listRG4 6US: not on the flood risk listRG4 6UU: not on the flood risk listRG4 6UX: not on the flood risk listRG4 6XB: not on the flood risk listRG4 6XD: not on the flood risk listRG4 6XE: not on the flood risk listRG4 6XF: not on the flood risk listRG4 6XG: not on the flood risk listRG4 6XH: not on the flood risk listRG4 6XJ: not on the flood risk listRG4 6XL: not on the flood risk listRG4 6XN: not on the flood risk listRG4 6XQ: not on the flood risk listRG4 6XS: not on the flood risk listRG4 6YT: not on the flood risk listRG4 7AG: not on the flood risk listRG4 7AL: not on the flood risk listRG4 7AN: not on the flood risk listRG4 7AQ: not on the flood risk listRG4 7AS: not on the flood risk listRG4 7AU: not on the flood risk listRG4 7AW: not on the flood risk listRG4 7AX: not on the flood risk listRG4 7AY: not on the flood risk listRG4 7BA: not on the flood risk listRG4 7BB: not on the flood risk listRG4 7BD: not on the flood risk listRG4 7BE: not on the flood risk listRG4 7BG: not on the flood risk listRG4 7BH: not on the flood risk listRG4 7BJ: not on the flood risk listRG4 7BL: not on the flood risk listRG4 7BN: not on the flood risk listRG4 7BP: not on the flood risk listRG4 7BT: not on the flood risk listRG4 7BX: not on the flood risk listRG4 7BY: not on the flood risk listRG4 7DA: not on the flood risk listRG4 7DD: not on the flood risk listRG4 7DF: not on the flood risk listRG4 7DG: not on the flood risk listRG4 7DH: not on the flood risk listRG4 7DN: not on the flood risk listRG4 7DP: not on the flood risk listRG4 7DQ: not on the flood risk listRG4 7DR: not on the flood risk listRG4 7DS: not on the flood risk listRG4 7DT: not on the flood risk listRG4 7DU: not on the flood risk listRG4 7DX: not on the flood risk listRG4 7DZ: not on the flood risk listRG4 7EA: not on the flood risk listRG4 7EB: not on the flood risk listRG4 7ED: not on the flood risk listRG4 7EF: not on the flood risk listRG4 7EG: not on the flood risk listRG4 7EJ: not on the flood risk listRG4 7EL: not on the flood risk listRG4 7EN: not on the flood risk listRG4 7EP: not on the flood risk listRG4 7EX: not on the flood risk listRG4 7EY: not on the flood risk listRG4 7EZ: not on the flood risk listRG4 7HA: not on the flood risk listRG4 7HB: not on the flood risk listRG4 7HD: not on the flood risk listRG4 7HE: not on the flood risk listRG4 7HG: not on the flood risk listRG4 7HH: not on the flood risk listRG4 7HJ: not on the flood risk listRG4 7HL: not on the flood risk listRG4 7HN: not on the flood risk listRG4 7HP: not on the flood risk listRG4 7HR: not on the flood risk listRG4 7HS: not on the flood risk listRG4 7HT: not on the flood risk listRG4 7HW: not on the flood risk listRG4 7HZ: not on the flood risk listRG4 7JB: not on the flood risk listRG4 7JE: not on the flood risk listRG4 7JF: not on the flood risk listRG4 7JH: not on the flood risk listRG4 7JJ: not on the flood risk listRG4 7JL: not on the flood risk listRG4 7JN: not on the flood risk listRG4 7JP: not on the flood risk listRG4 7JQ: not on the flood risk listRG4 7JR: not on the flood risk listRG4 7JS: not on the flood risk listRG4 7JT: not on the flood risk listRG4 7JU: not on the flood risk listRG4 7JX: not on the flood risk listRG4 7JY: not on the flood risk listRG4 7JZ: not on the flood risk listRG4 7LB: not on the flood risk listRG4 7LD: not on the flood risk listRG4 7LE: not on the flood risk listRG4 7LH: not on the flood risk listRG4 7LJ: not on the flood risk listRG4 7LR: not on the flood risk listRG4 7LS: not on the flood risk listRG4 7LX: not on the flood risk listRG4 7LZ: not on the flood risk listRG4 7NB: not on the flood risk listRG4 7NE: not on the flood risk listRG4 7NF: not on the flood risk listRG4 7NG: not on the flood risk listRG4 7NH: not on the flood risk listRG4 7NL: not on the flood risk listRG4 7NN: not on the flood risk listRG4 7NP: not on the flood risk listRG4 7NQ: not on the flood risk listRG4 7NR: not on the flood risk listRG4 7NT: not on the flood risk listRG4 7NX: not on the flood risk listRG4 7NY: not on the flood risk listRG4 7PA: not on the flood risk listRG4 7PB: not on the flood risk listRG4 7PD: not on the flood risk listRG4 7PE: not on the flood risk listRG4 7PH: not on the flood risk listRG4 7PJ: not on the flood risk listRG4 7PL: not on the flood risk listRG4 7PN: not on the flood risk listRG4 7PP: not on the flood risk listRG4 7PQ: not on the flood risk listRG4 7PR: not on the flood risk listRG4 7PS: not on the flood risk listRG4 7PW: not on the flood risk listRG4 7PX: not on the flood risk listRG4 7QA: not on the flood risk listRG4 7QB: not on the flood risk listRG4 7QD: not on the flood risk listRG4 7QH: not on the flood risk listRG4 7QJ: not on the flood risk listRG4 7QL: not on the flood risk listRG4 7QR: not on the flood risk listRG4 7QS: not on the flood risk listRG4 7QT: not on the flood risk listRG4 7QU: not on the flood risk listRG4 7QW: not on the flood risk listRG4 7QY: not on the flood risk listRG4 7RA: not on the flood risk listRG4 7RB: not on the flood risk listRG4 7RE: not on the flood risk listRG4 7RG: not on the flood risk listRG4 7RH: not on the flood risk listRG4 7RL: not on the flood risk listRG4 7RN: not on the flood risk listRG4 7RP: not on the flood risk listRG4 7RQ: not on the flood risk listRG4 7RS: not on the flood risk listRG4 7RT: not on the flood risk listRG4 7RU: not on the flood risk listRG4 7RW: not on the flood risk listRG4 7RY: not on the flood risk listRG4 7RZ: not on the flood risk listRG4 7SA: not on the flood risk listRG4 7SB: not on the flood risk listRG4 7SD: not on the flood risk listRG4 7SN: not on the flood risk listRG4 7ST: not on the flood risk listRG4 7SU: not on the flood risk listRG4 7TG: not on the flood risk listRG4 7TJ: not on the flood risk listRG4 7TT: not on the flood risk listRG4 7TU: not on the flood risk listRG4 7TW: not on the flood risk listRG4 7TX: not on the flood risk listRG4 7TY: not on the flood risk listRG4 7TZ: not on the flood risk listRG4 7UA: not on the flood risk listRG4 7UB: not on the flood risk listRG4 7UD: not on the flood risk listRG4 7UE: not on the flood risk listRG4 7UF: not on the flood risk listRG4 7UG: not on the flood risk listRG4 7UH: not on the flood risk listRG4 7UJ: not on the flood risk listRG4 7UL: not on the flood risk listRG4 7UN: not on the flood risk listRG4 7UP: not on the flood risk listRG4 7UR: not on the flood risk listRG4 7UT: not on the flood risk listRG4 7UW: not on the flood risk listRG4 7XA: not on the flood risk listRG4 7XB: not on the flood risk listRG4 7XD: not on the flood risk listRG4 7XE: not on the flood risk listRG4 7XF: not on the flood risk listRG4 7XG: not on the flood risk listRG4 7XH: not on the flood risk listRG4 7XJ: not on the flood risk listRG4 7XN: not on the flood risk listRG4 7XQ: not on the flood risk listRG4 7XR: not on the flood risk listRG4 7XW: not on the flood risk listRG4 8AB: not on the flood risk listRG4 8AP: not on the flood risk listRG4 8AQ: not on the flood risk listRG4 8AW: not on the flood risk listRG4 8AX: not on the flood risk listRG4 8EJ: not on the flood risk listRG4 8ES: not on the flood risk listRG4 8EZ: not on the flood risk listRG4 8FZ: not on the flood risk listRG4 8HJ: not on the flood risk listRG4 8HN: not on the flood risk listRG4 8HQ: not on the flood risk listRG4 8HR: not on the flood risk listRG4 8HW: not on the flood risk listRG4 8JA: not on the flood risk listRG4 8JG: not on the flood risk listRG4 8JN: not on the flood risk listRG4 8JP: not on the flood risk listRG4 8JQ: not on the flood risk listRG4 8JR: not on the flood risk listRG4 8JW: not on the flood risk listRG4 8JZ: not on the flood risk listRG4 8LA: not on the flood risk listRG4 8LB: not on the flood risk listRG4 8LD: not on the flood risk listRG4 8LE: not on the flood risk listRG4 8LF: not on the flood risk listRG4 8LH: not on the flood risk listRG4 8LJ: not on the flood risk listRG4 8LL: not on the flood risk listRG4 8LN: not on the flood risk listRG4 8LP: not on the flood risk listRG4 8LR: not on the flood risk listRG4 8LS: not on the flood risk listRG4 8LT: not on the flood risk listRG4 8LU: not on the flood risk listRG4 8LY: not on the flood risk listRG4 8NB: not on the flood risk listRG4 8ND: not on the flood risk listRG4 8NE: not on the flood risk listRG4 8NG: not on the flood risk listRG4 8NH: not on the flood risk listRG4 8NJ: not on the flood risk listRG4 8NL: not on the flood risk listRG4 8NN: not on the flood risk listRG4 8NQ: not on the flood risk listRG4 8NR: not on the flood risk listRG4 8NS: not on the flood risk listRG4 8NT: not on the flood risk listRG4 8NW: not on the flood risk listRG4 8NX: not on the flood risk listRG4 8NY: not on the flood risk listRG4 8NZ: not on the flood risk listRG4 8PA: not on the flood risk listRG4 8PE: not on the flood risk listRG4 8PF: not on the flood risk listRG4 8PH: not on the flood risk listRG4 8PJ: not on the flood risk listRG4 8PL: not on the flood risk listRG4 8PN: not on the flood risk listRG4 8PP: not on the flood risk listRG4 8PQ: not on the flood risk listRG4 8PR: not on the flood risk listRG4 8PU: not on the flood risk listRG4 8PW: not on the flood risk listRG4 8PX: not on the flood risk listRG4 8PY: not on the flood risk listRG4 8PZ: not on the flood risk listRG4 8QB: not on the flood risk listRG4 8QD: not on the flood risk listRG4 8QE: not on the flood risk listRG4 8QG: not on the flood risk listRG4 8QH: not on the flood risk listRG4 8QL: not on the flood risk listRG4 8QN: not on the flood risk listRG4 8QP: not on the flood risk listRG4 8QQ: not on the flood risk listRG4 8QR: not on the flood risk listRG4 8QS: not on the flood risk listRG4 8QU: not on the flood risk listRG4 8QW: not on the flood risk listRG4 8QX: not on the flood risk listRG4 8QZ: not on the flood risk listRG4 8RA: not on the flood risk listRG4 8RB: not on the flood risk listRG4 8RD: not on the flood risk listRG4 8RF: not on the flood risk listRG4 8RG: not on the flood risk listRG4 8RH: not on the flood risk listRG4 8RJ: not on the flood risk listRG4 8RL: not on the flood risk listRG4 8RN: not on the flood risk listRG4 8RP: not on the flood risk listRG4 8RQ: not on the flood risk listRG4 8RR: not on the flood risk listRG4 8RS: not on the flood risk listRG4 8RW: not on the flood risk listRG4 8RX: not on the flood risk listRG4 8RY: not on the flood risk listRG4 8SA: not on the flood risk listRG4 8SB: not on the flood risk listRG4 8SD: not on the flood risk listRG4 8SE: not on the flood risk listRG4 8SG: not on the flood risk listRG4 8SJ: not on the flood risk listRG4 8SL: not on the flood risk listRG4 8SN: not on the flood risk listRG4 8SP: not on the flood risk listRG4 8SR: not on the flood risk listRG4 8ST: not on the flood risk listRG4 8SU: not on the flood risk listRG4 8SX: not on the flood risk listRG4 8SY: not on the flood risk listRG4 8TB: not on the flood risk listRG4 8TD: not on the flood risk listRG4 8TG: not on the flood risk listRG4 8TH: not on the flood risk listRG4 8TJ: not on the flood risk listRG4 8TL: not on the flood risk listRG4 8TN: not on the flood risk listRG4 8TP: not on the flood risk listRG4 8TQ: not on the flood risk listRG4 8TR: not on the flood risk listRG4 8TS: not on the flood risk listRG4 8TT: not on the flood risk listRG4 8TU: not on the flood risk listRG4 8UB: not on the flood risk listRG4 8UD: not on the flood risk listRG4 8UE: not on the flood risk listRG4 8UF: not on the flood risk listRG4 8UG: not on the flood risk listRG4 8UH: not on the flood risk listRG4 8UJ: not on the flood risk listRG4 8UL: not on the flood risk listRG4 8UN: not on the flood risk listRG4 8UP: not on the flood risk listRG4 8UR: not on the flood risk listRG4 8US: not on the flood risk listRG4 8UU: not on the flood risk listRG4 8UX: not on the flood risk listRG4 8UZ: not on the flood risk listRG4 8XA: not on the flood risk listRG4 8XB: not on the flood risk listRG4 8XE: not on the flood risk listRG4 8XF: not on the flood risk listRG4 8XG: not on the flood risk listRG4 8XH: not on the flood risk listRG4 8XJ: not on the flood risk listRG4 8XL: not on the flood risk listRG4 8XU: not on the flood risk listRG4 9AA: not on the flood risk listRG4 9AB: not on the flood risk listRG4 9AD: not on the flood risk listRG4 9AF: not on the flood risk listRG4 9AG: not on the flood risk listRG4 9AH: not on the flood risk listRG4 9AJ: not on the flood risk listRG4 9AL: not on the flood risk listRG4 9AN: not on the flood risk listRG4 9AP: not on the flood risk listRG4 9AQ: not on the flood risk listRG4 9AR: not on the flood risk listRG4 9AS: not on the flood risk listRG4 9AT: not on the flood risk listRG4 9AU: not on the flood risk listRG4 9AW: not on the flood risk listRG4 9AX: not on the flood risk listRG4 9AY: not on the flood risk listRG4 9AZ: not on the flood risk listRG4 9BA: not on the flood risk listRG4 9BB: not on the flood risk listRG4 9BD: not on the flood risk listRG4 9BG: not on the flood risk listRG4 9BH: not on the flood risk listRG4 9BJ: not on the flood risk listRG4 9BL: not on the flood risk listRG4 9BP: not on the flood risk listRG4 9BQ: not on the flood risk listRG4 9BS: not on the flood risk listRG4 9BT: not on the flood risk listRG4 9BU: not on the flood risk listRG4 9BW: not on the flood risk listRG4 9DA: not on the flood risk listRG4 9DB: not on the flood risk listRG4 9DD: not on the flood risk listRG4 9DE: not on the flood risk listRG4 9DH: not on the flood risk listRG4 9DJ: not on the flood risk listRG4 9DL: not on the flood risk listRG4 9DP: not on the flood risk listRG4 9DQ: not on the flood risk listRG4 9DR: not on the flood risk listRG4 9DW: not on the flood risk listRG4 9EA: not on the flood risk listRG4 9EB: not on the flood risk listRG4 9ED: not on the flood risk listRG4 9EE: not on the flood risk listRG4 9EF: not on the flood risk listRG4 9EG: not on the flood risk listRG4 9EH: not on the flood risk listRG4 9EJ: not on the flood risk listRG4 9EN: not on the flood risk listRG4 9EP: not on the flood risk listRG4 9EQ: not on the flood risk listRG4 9ER: not on the flood risk listRG4 9ES: not on the flood risk listRG4 9ET: not on the flood risk listRG4 9EU: not on the flood risk listRG4 9EW: not on the flood risk listRG4 9EX: not on the flood risk listRG4 9EY: not on the flood risk listRG4 9EZ: not on the flood risk listRG4 9FA: not on the flood risk listRG4 9FD: not on the flood risk listRG4 9FE: not on the flood risk listRG4 9FF: not on the flood risk listRG4 9FG: not on the flood risk listRG4 9HA: not on the flood risk listRG4 9HB: not on the flood risk listRG4 9HD: not on the flood risk listRG4 9HE: not on the flood risk listRG4 9HG: not on the flood risk listRG4 9HH: not on the flood risk listRG4 9HJ: not on the flood risk listRG4 9HL: not on the flood risk listRG4 9HN: not on the flood risk listRG4 9HP: not on the flood risk listRG4 9HR: not on the flood risk listRG4 9HS: not on the flood risk listRG4 9HT: not on the flood risk listRG4 9HU: not on the flood risk listRG4 9HX: not on the flood risk listRG4 9HY: not on the flood risk listRG4 9JA: not on the flood risk listRG4 9JB: not on the flood risk listRG4 9JE: not on the flood risk listRG4 9JF: not on the flood risk listRG4 9JJ: not on the flood risk listRG4 9JP: not on the flood risk listRG4 9JR: not on the flood risk listRG4 9JS: not on the flood risk listRG4 9JT: not on the flood risk listRG4 9JX: not on the flood risk listRG4 9JY: not on the flood risk listRG4 9LA: not on the flood risk listRG4 9LB: not on the flood risk listRG4 9LD: not on the flood risk listRG4 9LF: not on the flood risk listRG4 9LG: not on the flood risk listRG4 9LH: not on the flood risk listRG4 9LJ: not on the flood risk listRG4 9LN: not on the flood risk listRG4 9LP: not on the flood risk listRG4 9LQ: not on the flood risk listRG4 9LR: not on the flood risk listRG4 9LS: not on the flood risk listRG4 9LT: not on the flood risk listRG4 9LW: not on the flood risk listRG4 9LX: not on the flood risk listRG4 9LY: not on the flood risk listRG4 9LZ: not on the flood risk listRG4 9NA: not on the flood risk listRG4 9NB: not on the flood risk listRG4 9ND: not on the flood risk listRG4 9NE: not on the flood risk listRG4 9NG: not on the flood risk listRG4 9NH: not on the flood risk listRG4 9NJ: not on the flood risk listRG4 9NL: not on the flood risk listRG4 9NP: not on the flood risk listRG4 9NR: not on the flood risk listRG4 9NS: not on the flood risk listRG4 9NU: not on the flood risk listRG4 9NX: not on the flood risk listRG4 9NY: not on the flood risk listRG4 9PA: not on the flood risk listRG4 9PB: not on the flood risk listRG4 9PE: not on the flood risk listRG4 9PG: not on the flood risk listRG4 9PH: not on the flood risk listRG4 9PL: not on the flood risk listRG4 9PN: not on the flood risk listRG4 9PP: not on the flood risk listRG4 9PQ: not on the flood risk listRG4 9PR: not on the flood risk listRG4 9PS: not on the flood risk listRG4 9PT: not on the flood risk listRG4 9PU: not on the flood risk listRG4 9PW: not on the flood risk listRG4 9PX: not on the flood risk listRG4 9PY: not on the flood risk listRG4 9QA: not on the flood risk listRG4 9QD: not on the flood risk listRG4 9QE: not on the flood risk listRG4 9QF: not on the flood risk listRG4 9QG: not on the flood risk listRG4 9QH: not on the flood risk listRG4 9QJ: not on the flood risk listRG4 9QL: not on the flood risk listRG4 9QN: not on the flood risk listRG4 9QS: not on the flood risk listRG4 9RE: not on the flood risk listRG4 9RF: not on the flood risk listRG4 9RG: not on the flood risk listRG4 9RH: not on the flood risk listRG4 9RJ: not on the flood risk listRG4 9RP: not on the flood risk listRG4 9RR: not on the flood risk listRG4 9RS: not on the flood risk listRG4 9RU: not on the flood risk listRG4 9RY: not on the flood risk listRG4 9SA: not on the flood risk listRG4 9SH: not on the flood risk listRG4 9SJ: not on the flood risk listRG4 9SP: not on the flood risk listRG4 9SQ: not on the flood risk listRG4 9SS: not on the flood risk listRG4 9SU: not on the flood risk listRG4 9SW: not on the flood risk listRG4 9TA: not on the flood risk listRG4 9TB: not on the flood risk listRG4 9TD: not on the flood risk listRG4 9TG: not on the flood risk listRG4 9TH: not on the flood risk listRG4 9TJ: not on the flood risk listRG4 9TS: not on the flood risk listRG4 5AF: low flood risk at worstRG4 5DA: low flood risk at worstRG4 5DD: low flood risk at worstRG4 5DG: low flood risk at worstRG4 5ED: low flood risk at worstRG4 5JZ: low flood risk at worstRG4 6LB: low flood risk at worstRG4 6LL: low flood risk at worstRG4 7AA: low flood risk at worstRG4 7SY: low flood risk at worstRG4 7SE: low flood risk at worstRG4 7SS: low flood risk at worstRG4 7TN: low flood risk at worstRG4 8AU: low flood risk at worstRG4 8AZ: low flood risk at worstRG4 8BB: low flood risk at worstRG4 8BQ: low flood risk at worstRG4 8BT: low flood risk at worstRG4 8BY: low flood risk at worstRG4 8BZ: low flood risk at worstRG4 8DB: low flood risk at worstRG4 8EQ: low flood risk at worstRG4 8HH: low flood risk at worstRG4 9QP: low flood risk at worstRG4 9QR: low flood risk at worstRG4 5AA: medium flood risk at worstRG4 5AB: medium flood risk at worstRG4 5AD: medium flood risk at worstRG4 5AE: medium flood risk at worstRG4 5AH: medium flood risk at worstRG4 5AJ: medium flood risk at worstRG4 5AL: medium flood risk at worstRG4 5AN: medium flood risk at worstRG4 5AP: medium flood risk at worstRG4 5AS: medium flood risk at worstRG4 5AT: medium flood risk at worstRG4 5AX: medium flood risk at worstRG4 5AY: medium flood risk at worstRG4 5BB: medium flood risk at worstRG4 5BE: medium flood risk at worstRG4 5BF: medium flood risk at worstRG4 5BH: medium flood risk at worstRG4 5BJ: medium flood risk at worstRG4 5BL: medium flood risk at worstRG4 5BN: medium flood risk at worstRG4 5BT: medium flood risk at worstRG4 5BZ: medium flood risk at worstRG4 5DB: medium flood risk at worstRG4 5DE: medium flood risk at worstRG4 5LE: medium flood risk at worstRG4 5LQ: medium flood risk at worstRG4 5LY: medium flood risk at worstRG4 6AE: medium flood risk at worstRG4 6LE: medium flood risk at worstRG4 6LF: medium flood risk at worstRG4 8BD: medium flood risk at worstRG4 8BG: medium flood risk at worstRG4 8BH: medium flood risk at worstRG4 8BJ: medium flood risk at worstRG4 8BL: medium flood risk at worstRG4 8DD: medium flood risk at worstRG4 8DW: medium flood risk at worstRG4 8DX: medium flood risk at worstRG4 8DY: medium flood risk at worstRG4 8EG: high flood riskRG4 5BG: high flood riskRG4 5NA: high flood riskRG4 5BQ: high flood riskRG4 5BS: high flood riskRG4 5BY: high flood riskRG4 5JX: high flood riskRG4 5LG: high flood riskRG4 5LR: high flood riskRG4 5LS: high flood riskRG4 5LT: high flood riskRG4 5LX: high flood riskRG4 5LZ: high flood riskRG4 6LP: high flood riskRG4 6LQ: high flood riskRG4 6TN: high flood riskRG4 6TP: high flood riskRG4 6TR: high flood riskRG4 6TT: high flood riskRG4 6TU: high flood riskRG4 6TW: high flood riskRG4 6TX: high flood riskRG4 6TZ: high flood riskRG4 6UR: high flood riskRG4 6UT: high flood riskRG4 7AH: high flood riskRG4 7TH: high flood riskRG4 7TL: high flood riskRG4 7TP: high flood riskRG4 7TQ: high flood riskRG4 7TR: high flood riskRG4 8AA: high flood riskRG4 8AH: high flood riskRG4 8AL: high flood riskRG4 8BE: high flood riskRG4 8BF: high flood riskRG4 8BU: high flood riskRG4 8BW: high flood riskRG4 8DG: high flood riskRG4 8DH: high flood riskRG4 8DL: high flood riskRG4 8DN: high flood riskRG4 8DP: high flood riskRG4 8DQ: high flood riskRG4 8DU: high flood riskRG4 8ED: high flood riskRG4 8EF: high flood riskRG4 8EH: high flood riskRG4 8ET: high flood riskRG4 8EW: high flood riskRG4 8EX: high flood riskRG4 9RA: high flood riskRG4 9RB: high flood riskRG4 9RD: high flood risk CavershamReadingWoodleyHenley-on-ThamesSonning CommonLower Shiplake 81 postcodes at high or medium risk, outlined: this goes to RG4 5JX, the one with most homes and businesses at high risk81 postcodes at high or medium risk7 postcodes at high or medium risk, outlined: this goes to RG4 5LX, 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 RG4 8AL, the one with most homes and businesses at high risk7 postcodes at high or medium risk Map of every postcode in RG4, by flood risk Of the 1,000 postcodes in RG4 that ONS places, 59 have a home or business at high risk, 58 are at medium risk at worst, 32 are at low risk at worst and 851 are not on the Environment Agency's at-risk list. 3 groups of postcodes at high or medium risk are outlined: 81 postcodes at high or medium risk; 7 postcodes at high or medium risk; 7 postcodes at high or medium risk. Places named: Caversham, Reading, Woodley, Henley-on-Thames. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A329A4155A4 CavershamReadingWoodleyHenley-on-Thames
  • A home or business at high risk: 59
  • At medium risk at worst: 58
  • At low risk at worst: 32
  • At very low risk only: 0
  • Not on the at-risk list: 851
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 1,000 postcodes in RG4 that ONS places, 59 have a home or business at high risk, 58 are at medium risk at worst, 32 are at low risk at worst and 851 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 51.4829, longitude -0.9697. 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

59 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.

RG4 5JX34 at high riskRG4 8EX31 at high riskRG4 8AL31 at high riskRG4 8EN26 at high riskRG4 8DN25 at high riskRG4 8EH24 at high riskRG4 5LX23 at high riskRG4 7TQ23 at high riskRG4 5BG15 at high riskRG4 5LT14 at high riskRG4 8DP14 at high riskRG4 5LS13 at high risk

Where the postcodes at high or medium risk lie together

  • 81 postcodes at high or medium risk, outlined on the map. RG4 5JX, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. RG4 5LX, is the one with most homes and businesses at high risk.
  • 7 postcodes at high or medium risk, outlined on the map. RG4 8AL, is the one with most homes and businesses at high risk.

What broadband can you get in RG4?

Ofcom reports on 988 of the 1,000 postcodes in RG4. At 794 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit794 of 988
Postcodes where every home can get superfast946 of 988
Postcodes where some cannot get decent broadband1 of 988

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 RG4 at risk of flooding?

149 of the 1,000 postcodes in RG4 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 1,969 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 149 of 1,000 postcodes High: 501Medium: 1,468Low: 1,192

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 RG4?

Homes in RG4 sold for a typical £487,500 in the 12 months to August 2026, across 482 sales, up 1.6% on the 12 months before, HM Land Registry's figures show.

£487,500 typical price, the 12 months to August 2026
£480,000 12 months to August 2025
▲ up 1.6% on the 12 months before
  • Detached £742,500 140 sales
  • Semi-detached £527,000 130 sales
  • Terraced £405,000 125 sales
  • Flat or maisonette £250,000 87 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in RG4

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

RG4 5113 postcodesRG4 6180 postcodesRG4 7237 postcodesRG4 8257 postcodesRG4 9213 postcodes
UK postcode format explained

Places in RG4

Towns and villages with postcodes in RG4, and how many each has here.

Caversham postcodes,690Sonning Common postcodes,88Reading postcodes,4

Who covers RG4

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

  • Reading Central698
  • Henley and Thame252
  • Earley and Woodley50

Police force areas

  • Thames Valley1,000

Next to RG4

RG2 postcode district RG5 postcode district All RG districts Caversham postcodes

"Next to" is by number: the districts before and after RG4 in the RG area.

Check a postcode

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