L23 postcode district: Crosby and around, Sefton

L23 is a postcode district in England, with 703 postcodes in use in 10 sectors. It has postcodes in Crosby. Its council is Sefton.

Postcodes in use
703
Sectors
10
Council
Sefton
Places
Crosby

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

Every postcode in L23, by flood risk

Map of every postcode in L23, by flood risk Of the 703 postcodes in L23 that ONS places, 703 are not on the Environment Agency's at-risk list. Places named: Crosby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 500 m. A5758 L23 0AB: not on the flood risk listL23 0QA: not on the flood risk listL23 0QB: not on the flood risk listL23 0QD: not on the flood risk listL23 0QE: not on the flood risk listL23 0QF: not on the flood risk listL23 0QG: not on the flood risk listL23 0QH: not on the flood risk listL23 0QJ: not on the flood risk listL23 0QL: not on the flood risk listL23 0QN: not on the flood risk listL23 0QP: not on the flood risk listL23 0QQ: not on the flood risk listL23 0QR: not on the flood risk listL23 0QS: not on the flood risk listL23 0QT: not on the flood risk listL23 0QU: not on the flood risk listL23 0QW: not on the flood risk listL23 0QX: not on the flood risk listL23 0QZ: not on the flood risk listL23 0RA: not on the flood risk listL23 0RB: not on the flood risk listL23 0RD: not on the flood risk listL23 0RE: not on the flood risk listL23 0RG: not on the flood risk listL23 0RH: not on the flood risk listL23 0RJ: not on the flood risk listL23 0RL: not on the flood risk listL23 0RN: not on the flood risk listL23 0RP: not on the flood risk listL23 0RQ: not on the flood risk listL23 0RS: not on the flood risk listL23 0RT: not on the flood risk listL23 0RU: not on the flood risk listL23 0RW: not on the flood risk listL23 0RX: not on the flood risk listL23 0RY: not on the flood risk listL23 0RZ: not on the flood risk listL23 0SA: not on the flood risk listL23 0SB: not on the flood risk listL23 0SD: not on the flood risk listL23 0SE: not on the flood risk listL23 0SF: not on the flood risk listL23 0SG: not on the flood risk listL23 0SH: not on the flood risk listL23 0SJ: not on the flood risk listL23 0SL: not on the flood risk listL23 0SN: not on the flood risk listL23 0SP: not on the flood risk listL23 0SQ: not on the flood risk listL23 0SR: not on the flood risk listL23 0SS: not on the flood risk listL23 0ST: not on the flood risk listL23 0SU: not on the flood risk listL23 0SW: not on the flood risk listL23 0SX: not on the flood risk listL23 0SY: not on the flood risk listL23 0SZ: not on the flood risk listL23 0TA: not on the flood risk listL23 0TB: not on the flood risk listL23 0TD: not on the flood risk listL23 0TE: not on the flood risk listL23 0TF: not on the flood risk listL23 0TG: not on the flood risk listL23 0TH: not on the flood risk listL23 0TJ: not on the flood risk listL23 0TL: not on the flood risk listL23 0TN: not on the flood risk listL23 0TP: not on the flood risk listL23 0TQ: not on the flood risk listL23 0TR: not on the flood risk listL23 0TT: not on the flood risk listL23 0TU: not on the flood risk listL23 0TW: not on the flood risk listL23 0TX: not on the flood risk listL23 0TY: not on the flood risk listL23 0TZ: not on the flood risk listL23 0UA: not on the flood risk listL23 0UB: not on the flood risk listL23 0UE: not on the flood risk listL23 0UF: not on the flood risk listL23 0UG: not on the flood risk listL23 0UH: not on the flood risk listL23 0UJ: not on the flood risk listL23 0UL: not on the flood risk listL23 0UN: not on the flood risk listL23 0UQ: not on the flood risk listL23 0UR: not on the flood risk listL23 0UT: not on the flood risk listL23 0UW: not on the flood risk listL23 0YD: not on the flood risk listL23 0YE: not on the flood risk listL23 1AB: not on the flood risk listL23 1AD: not on the flood risk listL23 1AE: not on the flood risk listL23 1AF: not on the flood risk listL23 1AG: not on the flood risk listL23 1AJ: not on the flood risk listL23 1AN: not on the flood risk listL23 1AP: not on the flood risk listL23 1AQ: not on the flood risk listL23 1AR: not on the flood risk listL23 1AS: not on the flood risk listL23 1AT: not on the flood risk listL23 1AU: not on the flood risk listL23 1AW: not on the flood risk listL23 1AX: not on the flood risk listL23 1AY: not on the flood risk listL23 1AZ: not on the flood risk listL23 1BA: not on the flood risk listL23 1BD: not on the flood risk listL23 1BE: not on the flood risk listL23 1BF: not on the flood risk listL23 1BJ: not on the flood risk listL23 1TA: not on the flood risk listL23 1TB: not on the flood risk listL23 1TD: not on the flood risk listL23 1TE: not on the flood risk listL23 1TF: not on the flood risk listL23 1TG: not on the flood risk listL23 1TH: not on the flood risk listL23 1TJ: not on the flood risk listL23 1TL: not on the flood risk listL23 1TN: not on the flood risk listL23 1TP: not on the flood risk listL23 1TQ: not on the flood risk listL23 1TR: not on the flood risk listL23 1TS: not on the flood risk listL23 1TY: not on the flood risk listL23 1TZ: not on the flood risk listL23 1UA: not on the flood risk listL23 1UE: not on the flood risk listL23 1UF: not on the flood risk listL23 1UH: not on the flood risk listL23 1UJ: not on the flood risk listL23 1UP: not on the flood risk listL23 1UR: not on the flood risk listL23 1US: not on the flood risk listL23 1UT: not on the flood risk listL23 1UW: not on the flood risk listL23 1UY: not on the flood risk listL23 1XB: not on the flood risk listL23 1XD: not on the flood risk listL23 1XE: not on the flood risk listL23 1XF: not on the flood risk listL23 1XG: not on the flood risk listL23 1XH: not on the flood risk listL23 1XJ: not on the flood risk listL23 1XL: not on the flood risk listL23 1XQ: not on the flood risk listL23 1XS: not on the flood risk listL23 1XT: not on the flood risk listL23 1ZA: not on the flood risk listL23 1ZD: not on the flood risk listL23 2AA: not on the flood risk listL23 2AD: not on the flood risk listL23 2QY: not on the flood risk listL23 2QZ: not on the flood risk listL23 2RA: not on the flood risk listL23 2RB: not on the flood risk listL23 2RD: not on the flood risk listL23 2RE: not on the flood risk listL23 2RF: not on the flood risk listL23 2RG: not on the flood risk listL23 2RH: not on the flood risk listL23 2RJ: not on the flood risk listL23 2RL: not on the flood risk listL23 2RN: not on the flood risk listL23 2RP: not on the flood risk listL23 2RQ: not on the flood risk listL23 2RR: not on the flood risk listL23 2RS: not on the flood risk listL23 2RT: not on the flood risk listL23 2RU: not on the flood risk listL23 2RX: not on the flood risk listL23 2RY: not on the flood risk listL23 2RZ: not on the flood risk listL23 2SA: not on the flood risk listL23 2SD: not on the flood risk listL23 2SE: not on the flood risk listL23 2SF: not on the flood risk listL23 2SG: not on the flood risk listL23 2SH: not on the flood risk listL23 2SJ: not on the flood risk listL23 2SL: not on the flood risk listL23 2SN: not on the flood risk listL23 2SP: not on the flood risk listL23 2SQ: not on the flood risk listL23 2SR: not on the flood risk listL23 2SS: not on the flood risk listL23 2ST: not on the flood risk listL23 2SU: not on the flood risk listL23 2SW: not on the flood risk listL23 2SX: not on the flood risk listL23 2SY: not on the flood risk listL23 2SZ: not on the flood risk listL23 2TA: not on the flood risk listL23 2TB: not on the flood risk listL23 2TD: not on the flood risk listL23 2TE: not on the flood risk listL23 2TF: not on the flood risk listL23 2TG: not on the flood risk listL23 2TH: not on the flood risk listL23 2TJ: not on the flood risk listL23 2TL: not on the flood risk listL23 2TN: not on the flood risk listL23 2TP: not on the flood risk listL23 2TQ: not on the flood risk listL23 2TR: not on the flood risk listL23 2TS: not on the flood risk listL23 2TT: not on the flood risk listL23 2TU: not on the flood risk listL23 2TW: not on the flood risk listL23 2TX: not on the flood risk listL23 2TY: not on the flood risk listL23 2TZ: not on the flood risk listL23 2UA: not on the flood risk listL23 2UB: not on the flood risk listL23 2UD: not on the flood risk listL23 2UE: not on the flood risk listL23 2UF: not on the flood risk listL23 2UH: not on the flood risk listL23 2UL: not on the flood risk listL23 2UN: not on the flood risk listL23 2UP: not on the flood risk listL23 2UQ: not on the flood risk listL23 2UR: not on the flood risk listL23 2US: not on the flood risk listL23 2UT: not on the flood risk listL23 2UU: not on the flood risk listL23 2UX: not on the flood risk listL23 2UY: not on the flood risk listL23 2UZ: not on the flood risk listL23 2XA: not on the flood risk listL23 2XB: not on the flood risk listL23 2XD: not on the flood risk listL23 2XF: not on the flood risk listL23 2XH: not on the flood risk listL23 2XJ: not on the flood risk listL23 2XN: not on the flood risk listL23 2XQ: not on the flood risk listL23 2XT: not on the flood risk listL23 2YR: not on the flood risk listL23 2YW: not on the flood risk listL23 3AD: not on the flood risk listL23 3AE: not on the flood risk listL23 3AF: not on the flood risk listL23 3AG: not on the flood risk listL23 3AH: not on the flood risk listL23 3AJ: not on the flood risk listL23 3AL: not on the flood risk listL23 3AN: not on the flood risk listL23 3AP: not on the flood risk listL23 3AQ: not on the flood risk listL23 3AR: not on the flood risk listL23 3AS: not on the flood risk listL23 3AT: not on the flood risk listL23 3AW: not on the flood risk listL23 3AX: not on the flood risk listL23 3AY: not on the flood risk listL23 3AZ: not on the flood risk listL23 3BA: not on the flood risk listL23 3BB: not on the flood risk listL23 3BD: not on the flood risk listL23 3BE: not on the flood risk listL23 3BJ: not on the flood risk listL23 3BN: not on the flood risk listL23 3BP: not on the flood risk listL23 3BQ: not on the flood risk listL23 3BR: not on the flood risk listL23 3BS: not on the flood risk listL23 3BT: not on the flood risk listL23 3BU: not on the flood risk listL23 3BW: not on the flood risk listL23 3BX: not on the flood risk listL23 3BY: not on the flood risk listL23 3DA: not on the flood risk listL23 3DB: not on the flood risk listL23 3DD: not on the flood risk listL23 3DE: not on the flood risk listL23 3DF: not on the flood risk listL23 3DG: not on the flood risk listL23 3DH: not on the flood risk listL23 3DJ: not on the flood risk listL23 3DL: not on the flood risk listL23 3DN: not on the flood risk listL23 3DP: not on the flood risk listL23 3DQ: not on the flood risk listL23 3DR: not on the flood risk listL23 3DS: not on the flood risk listL23 3DW: not on the flood risk listL23 4AB: not on the flood risk listL23 4AD: not on the flood risk listL23 4AE: not on the flood risk listL23 4AF: not on the flood risk listL23 4AG: not on the flood risk listL23 4AH: not on the flood risk listL23 4AJ: not on the flood risk listL23 4AL: not on the flood risk listL23 4TA: not on the flood risk listL23 4TB: not on the flood risk listL23 4TD: not on the flood risk listL23 4TE: not on the flood risk listL23 4TF: not on the flood risk listL23 4TG: not on the flood risk listL23 4TH: not on the flood risk listL23 4TJ: not on the flood risk listL23 4TL: not on the flood risk listL23 4TP: not on the flood risk listL23 4TQ: not on the flood risk listL23 4TR: not on the flood risk listL23 4TS: not on the flood risk listL23 4TT: not on the flood risk listL23 4TU: not on the flood risk listL23 4TW: not on the flood risk listL23 4TX: not on the flood risk listL23 4TY: not on the flood risk listL23 4TZ: not on the flood risk listL23 4UA: not on the flood risk listL23 4UB: not on the flood risk listL23 4UD: not on the flood risk listL23 4UE: not on the flood risk listL23 4UF: not on the flood risk listL23 4UG: not on the flood risk listL23 4UH: not on the flood risk listL23 4UJ: not on the flood risk listL23 4UL: not on the flood risk listL23 4UN: not on the flood risk listL23 4UP: not on the flood risk listL23 4UQ: not on the flood risk listL23 5RB: not on the flood risk listL23 5RD: not on the flood risk listL23 5RE: not on the flood risk listL23 5RF: not on the flood risk listL23 5RG: not on the flood risk listL23 5RH: not on the flood risk listL23 5RL: not on the flood risk listL23 5RN: not on the flood risk listL23 5RP: not on the flood risk listL23 5RQ: not on the flood risk listL23 5RS: not on the flood risk listL23 5RT: not on the flood risk listL23 5RU: not on the flood risk listL23 5RW: not on the flood risk listL23 5RX: not on the flood risk listL23 5RY: not on the flood risk listL23 5RZ: not on the flood risk listL23 5SD: not on the flood risk listL23 5SE: not on the flood risk listL23 5SF: not on the flood risk listL23 5SH: not on the flood risk listL23 5SJ: not on the flood risk listL23 5SP: not on the flood risk listL23 5SR: not on the flood risk listL23 5ST: not on the flood risk listL23 5SU: not on the flood risk listL23 5SX: not on the flood risk listL23 5SY: not on the flood risk listL23 5TA: not on the flood risk listL23 5TB: not on the flood risk listL23 5TD: not on the flood risk listL23 5TE: not on the flood risk listL23 5TF: not on the flood risk listL23 5TG: not on the flood risk listL23 5TH: not on the flood risk listL23 5TJ: not on the flood risk listL23 5TL: not on the flood risk listL23 5TN: not on the flood risk listL23 5TP: not on the flood risk listL23 5TR: not on the flood risk listL23 5TS: not on the flood risk listL23 5TT: not on the flood risk listL23 5TU: not on the flood risk listL23 5TW: not on the flood risk listL23 5TX: not on the flood risk listL23 5UE: not on the flood risk listL23 5UJ: not on the flood risk listL23 6AB: not on the flood risk listL23 6AD: not on the flood risk listL23 6AE: not on the flood risk listL23 6BA: not on the flood risk listL23 6BD: not on the flood risk listL23 6RJ: not on the flood risk listL23 6SA: not on the flood risk listL23 6SG: not on the flood risk listL23 6SN: not on the flood risk listL23 6SP: not on the flood risk listL23 6SR: not on the flood risk listL23 6SS: not on the flood risk listL23 6ST: not on the flood risk listL23 6SU: not on the flood risk listL23 6SW: not on the flood risk listL23 6SX: not on the flood risk listL23 6SY: not on the flood risk listL23 6SZ: not on the flood risk listL23 6TA: not on the flood risk listL23 6TD: not on the flood risk listL23 6TE: not on the flood risk listL23 6TF: not on the flood risk listL23 6TH: not on the flood risk listL23 6TJ: not on the flood risk listL23 6TL: not on the flood risk listL23 6TN: not on the flood risk listL23 6TP: not on the flood risk listL23 6TQ: not on the flood risk listL23 6TR: not on the flood risk listL23 6TS: not on the flood risk listL23 6TT: not on the flood risk listL23 6TU: not on the flood risk listL23 6TW: not on the flood risk listL23 6TX: not on the flood risk listL23 6TY: not on the flood risk listL23 6TZ: not on the flood risk listL23 6UA: not on the flood risk listL23 6UB: not on the flood risk listL23 6UE: not on the flood risk listL23 6UF: not on the flood risk listL23 6UG: not on the flood risk listL23 6UH: not on the flood risk listL23 6UJ: not on the flood risk listL23 6UL: not on the flood risk listL23 6UN: not on the flood risk listL23 6UP: not on the flood risk listL23 6UQ: not on the flood risk listL23 6UR: not on the flood risk listL23 6US: not on the flood risk listL23 6UT: not on the flood risk listL23 6UU: not on the flood risk listL23 6UW: not on the flood risk listL23 6UX: not on the flood risk listL23 6UY: not on the flood risk listL23 6UZ: not on the flood risk listL23 6WD: not on the flood risk listL23 6WE: not on the flood risk listL23 6WG: not on the flood risk listL23 6XA: not on the flood risk listL23 6XB: not on the flood risk listL23 6XD: not on the flood risk listL23 6XE: not on the flood risk listL23 6XG: not on the flood risk listL23 6XH: not on the flood risk listL23 6XJ: not on the flood risk listL23 6XN: not on the flood risk listL23 6XP: not on the flood risk listL23 6XQ: not on the flood risk listL23 6XR: not on the flood risk listL23 6XS: not on the flood risk listL23 6XT: not on the flood risk listL23 6XU: not on the flood risk listL23 6XW: not on the flood risk listL23 6XX: not on the flood risk listL23 6XY: not on the flood risk listL23 6YD: not on the flood risk listL23 7TA: not on the flood risk listL23 7TB: not on the flood risk listL23 7TD: not on the flood risk listL23 7TE: not on the flood risk listL23 7TF: not on the flood risk listL23 7TG: not on the flood risk listL23 7TH: not on the flood risk listL23 7TJ: not on the flood risk listL23 7TL: not on the flood risk listL23 7TN: not on the flood risk listL23 7TP: not on the flood risk listL23 7TQ: not on the flood risk listL23 7TR: not on the flood risk listL23 7TS: not on the flood risk listL23 7TU: not on the flood risk listL23 7TW: not on the flood risk listL23 7TX: not on the flood risk listL23 7TY: not on the flood risk listL23 7TZ: not on the flood risk listL23 7UA: not on the flood risk listL23 7UB: not on the flood risk listL23 7UD: not on the flood risk listL23 7UE: not on the flood risk listL23 7UG: not on the flood risk listL23 7UH: not on the flood risk listL23 7UJ: not on the flood risk listL23 7UL: not on the flood risk listL23 7UN: not on the flood risk listL23 7UP: not on the flood risk listL23 7UQ: not on the flood risk listL23 7UR: not on the flood risk listL23 7US: not on the flood risk listL23 7UT: not on the flood risk listL23 7UU: not on the flood risk listL23 7UW: not on the flood risk listL23 7UX: not on the flood risk listL23 7UY: not on the flood risk listL23 7UZ: not on the flood risk listL23 7XA: not on the flood risk listL23 7XB: not on the flood risk listL23 7XD: not on the flood risk listL23 7XE: not on the flood risk listL23 7XF: not on the flood risk listL23 7XG: not on the flood risk listL23 7XH: not on the flood risk listL23 7XJ: not on the flood risk listL23 7XL: not on the flood risk listL23 7XN: not on the flood risk listL23 7XS: not on the flood risk listL23 7XT: not on the flood risk listL23 7XU: not on the flood risk listL23 7XW: not on the flood risk listL23 7XX: not on the flood risk listL23 7XY: not on the flood risk listL23 7XZ: not on the flood risk listL23 7YA: not on the flood risk listL23 7YB: not on the flood risk listL23 7YD: not on the flood risk listL23 7YE: not on the flood risk listL23 7YF: not on the flood risk listL23 7YG: not on the flood risk listL23 7YH: not on the flood risk listL23 7YJ: not on the flood risk listL23 7YQ: not on the flood risk listL23 7YX: not on the flood risk listL23 8AA: not on the flood risk listL23 8AB: not on the flood risk listL23 8AD: not on the flood risk listL23 8AE: not on the flood risk listL23 8RA: not on the flood risk listL23 8SA: not on the flood risk listL23 8SB: not on the flood risk listL23 8SD: not on the flood risk listL23 8SE: not on the flood risk listL23 8SF: not on the flood risk listL23 8SG: not on the flood risk listL23 8SH: not on the flood risk listL23 8SJ: not on the flood risk listL23 8SL: not on the flood risk listL23 8SN: not on the flood risk listL23 8SP: not on the flood risk listL23 8SQ: not on the flood risk listL23 8SR: not on the flood risk listL23 8SS: not on the flood risk listL23 8ST: not on the flood risk listL23 8SU: not on the flood risk listL23 8SW: not on the flood risk listL23 8SX: not on the flood risk listL23 8SY: not on the flood risk listL23 8SZ: not on the flood risk listL23 8TA: not on the flood risk listL23 8TB: not on the flood risk listL23 8TD: not on the flood risk listL23 8TE: not on the flood risk listL23 8TF: not on the flood risk listL23 8TG: not on the flood risk listL23 8TH: not on the flood risk listL23 8TJ: not on the flood risk listL23 8TL: not on the flood risk listL23 8TN: not on the flood risk listL23 8TP: not on the flood risk listL23 8TQ: not on the flood risk listL23 8TR: not on the flood risk listL23 8TS: not on the flood risk listL23 8TT: not on the flood risk listL23 8TU: not on the flood risk listL23 8TW: not on the flood risk listL23 8TX: not on the flood risk listL23 8TY: not on the flood risk listL23 8TZ: not on the flood risk listL23 8UA: not on the flood risk listL23 8UB: not on the flood risk listL23 8UD: not on the flood risk listL23 8UE: not on the flood risk listL23 8UF: not on the flood risk listL23 8UG: not on the flood risk listL23 8UH: not on the flood risk listL23 8UJ: not on the flood risk listL23 8UL: not on the flood risk listL23 8UN: not on the flood risk listL23 8UP: not on the flood risk listL23 8UQ: not on the flood risk listL23 8UR: not on the flood risk listL23 8US: not on the flood risk listL23 8UT: not on the flood risk listL23 8UU: not on the flood risk listL23 8UW: not on the flood risk listL23 8UX: not on the flood risk listL23 8XB: not on the flood risk listL23 8XN: not on the flood risk listL23 9AB: not on the flood risk listL23 9AE: not on the flood risk listL23 9AF: not on the flood risk listL23 9RR: not on the flood risk listL23 9RU: not on the flood risk listL23 9SA: not on the flood risk listL23 9SB: not on the flood risk listL23 9SD: not on the flood risk listL23 9SE: not on the flood risk listL23 9SF: not on the flood risk listL23 9SG: not on the flood risk listL23 9SH: not on the flood risk listL23 9SJ: not on the flood risk listL23 9SL: not on the flood risk listL23 9SN: not on the flood risk listL23 9SP: not on the flood risk listL23 9SQ: not on the flood risk listL23 9SR: not on the flood risk listL23 9SS: not on the flood risk listL23 9ST: not on the flood risk listL23 9SU: not on the flood risk listL23 9SW: not on the flood risk listL23 9SX: not on the flood risk listL23 9SY: not on the flood risk listL23 9SZ: not on the flood risk listL23 9TA: not on the flood risk listL23 9TB: not on the flood risk listL23 9TD: not on the flood risk listL23 9TE: not on the flood risk listL23 9TF: not on the flood risk listL23 9TG: not on the flood risk listL23 9TH: not on the flood risk listL23 9TJ: not on the flood risk listL23 9TL: not on the flood risk listL23 9TN: not on the flood risk listL23 9TP: not on the flood risk listL23 9TQ: not on the flood risk listL23 9TR: not on the flood risk listL23 9TS: not on the flood risk listL23 9TT: not on the flood risk listL23 9TU: not on the flood risk listL23 9TW: not on the flood risk listL23 9TX: not on the flood risk listL23 9TY: not on the flood risk listL23 9TZ: not on the flood risk listL23 9UA: not on the flood risk listL23 9UB: not on the flood risk listL23 9UD: not on the flood risk listL23 9UE: not on the flood risk listL23 9UF: not on the flood risk listL23 9UG: not on the flood risk listL23 9UH: not on the flood risk listL23 9UL: not on the flood risk listL23 9UN: not on the flood risk listL23 9UP: not on the flood risk listL23 9UQ: not on the flood risk listL23 9US: not on the flood risk listL23 9UT: not on the flood risk listL23 9UU: not on the flood risk listL23 9UW: not on the flood risk listL23 9UX: not on the flood risk listL23 9UY: not on the flood risk listL23 9UZ: not on the flood risk listL23 9XA: not on the flood risk listL23 9XB: not on the flood risk listL23 9XD: not on the flood risk listL23 9XE: not on the flood risk listL23 9XF: not on the flood risk listL23 9XG: not on the flood risk listL23 9XH: not on the flood risk listL23 9XJ: not on the flood risk listL23 9XL: not on the flood risk listL23 9XQ: not on the flood risk listL23 9XR: not on the flood risk listL23 9XS: not on the flood risk listL23 9XT: not on the flood risk listL23 9XU: not on the flood risk listL23 9XW: not on the flood risk listL23 9XX: not on the flood risk listL23 9XY: not on the flood risk listL23 9YB: not on the flood risk listL23 9YF: not on the flood risk listL23 9YG: not on the flood risk listL23 9YH: not on the flood risk listL23 9YJ: not on the flood risk listL23 9YL: not on the flood risk listL23 9YN: not on the flood risk listL23 9YP: not on the flood risk listL23 9YQ: not on the flood risk listL23 9YR: not on the flood risk listL23 9YT: not on the flood risk listL23 9YU: not on the flood risk listL23 9YW: not on the flood risk list Crosby Map of every postcode in L23, by flood risk Of the 703 postcodes in L23 that ONS places, 703 are not on the Environment Agency's at-risk list. Places named: Crosby. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Crosby
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 703

Of the 703 postcodes in L23 that ONS places, 703 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. 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 53.4916, longitude -3.0225. 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

What broadband can you get in L23?

Ofcom reports on 680 of the 703 postcodes in L23. At 627 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit627 of 680
Postcodes where every home can get superfast664 of 680

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 L23 at risk of flooding?

None of the 703 postcodes in L23 is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

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 L23?

Homes in L23 sold for a typical £279,007 in the 12 months to August 2026, across 328 sales, down 3.8% on the 12 months before, HM Land Registry's figures show.

£279,007 typical price, the 12 months to August 2026
12 months to August 2025
£290,000
12 months to August 2026
£279,007

▼ down 3.8% on the 12 months before

Detached£480,000 46 sales
Semi-detached£307,750 172 sales
Terraced£218,500 54 sales
Flat or maisonette£180,000 56 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 L23

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

L23 093 postcodesL23 165 postcodesL23 293 postcodesL23 351 postcodesL23 439 postcodesL23 551 postcodesL23 679 postcodesL23 766 postcodesL23 867 postcodesL23 999 postcodes
UK postcode format explained

Places in L23

Towns and villages with postcodes in L23, and how many each has here.

Crosby postcodes,673

Who covers L23

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

  • Sefton Central476
  • Bootle227

Police force areas

  • Merseyside703

Next to L23

L22 postcode district L24 postcode district All L districts Crosby postcodes

"Next to" is by number: the districts before and after L23 in the L area.

Check a postcode

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