WN4 postcode district: Ashton-in-Makerfield and around

WN4 is a postcode district in England, with 604 postcodes in use in 3 sectors. It has postcodes in Ashton-in-Makerfield and Wigan. It is split between 2 councils: Wigan (510 postcodes) and St. Helens (94).

Postcodes in use
604
Sectors
3
Councils
2 councils
Places
2 places

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

Every postcode in WN4, by flood risk

Map of every postcode in WN4, by flood risk Of the 604 postcodes in WN4 that ONS places, 20 have a home or business at high risk, 3 are at medium risk at worst, 14 are at low risk at worst and 567 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 12 postcodes at high or medium risk. 5 postcodes lie beyond the edge and are listed under the map. Places named: Ashton-in-Makerfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M6 WN4 0AA: not on the flood risk listWN4 0AD: not on the flood risk listWN4 0AF: not on the flood risk listWN4 0AG: not on the flood risk listWN4 0AH: not on the flood risk listWN4 0AL: not on the flood risk listWN4 0AN: not on the flood risk listWN4 0AP: not on the flood risk listWN4 0AQ: not on the flood risk listWN4 0AR: not on the flood risk listWN4 0AS: not on the flood risk listWN4 0AT: not on the flood risk listWN4 0AU: not on the flood risk listWN4 0AW: not on the flood risk listWN4 0AX: not on the flood risk listWN4 0AY: not on the flood risk listWN4 0AZ: not on the flood risk listWN4 0BA: not on the flood risk listWN4 0BB: not on the flood risk listWN4 0BD: not on the flood risk listWN4 0BE: not on the flood risk listWN4 0BF: not on the flood risk listWN4 0BG: not on the flood risk listWN4 0BH: not on the flood risk listWN4 0BL: not on the flood risk listWN4 0BN: not on the flood risk listWN4 0BP: not on the flood risk listWN4 0BQ: not on the flood risk listWN4 0BS: not on the flood risk listWN4 0BW: not on the flood risk listWN4 0BX: not on the flood risk listWN4 0BY: not on the flood risk listWN4 0BZ: not on the flood risk listWN4 0DA: not on the flood risk listWN4 0DD: not on the flood risk listWN4 0DE: not on the flood risk listWN4 0DG: not on the flood risk listWN4 0DH: not on the flood risk listWN4 0DJ: not on the flood risk listWN4 0DL: not on the flood risk listWN4 0DN: not on the flood risk listWN4 0DP: not on the flood risk listWN4 0DQ: not on the flood risk listWN4 0DR: not on the flood risk listWN4 0DS: not on the flood risk listWN4 0DT: not on the flood risk listWN4 0DU: not on the flood risk listWN4 0DW: not on the flood risk listWN4 0DX: not on the flood risk listWN4 0DY: not on the flood risk listWN4 0DZ: not on the flood risk listWN4 0EA: not on the flood risk listWN4 0EB: not on the flood risk listWN4 0ED: not on the flood risk listWN4 0EE: not on the flood risk listWN4 0EF: not on the flood risk listWN4 0EG: not on the flood risk listWN4 0EH: not on the flood risk listWN4 0EJ: not on the flood risk listWN4 0EP: not on the flood risk listWN4 0EQ: not on the flood risk listWN4 0ER: not on the flood risk listWN4 0ET: not on the flood risk listWN4 0JA: not on the flood risk listWN4 0JH: not on the flood risk listWN4 0JJ: not on the flood risk listWN4 0JP: not on the flood risk listWN4 0JR: not on the flood risk listWN4 0JS: not on the flood risk listWN4 0JT: not on the flood risk listWN4 0JU: not on the flood risk listWN4 0JX: not on the flood risk listWN4 0JZ: not on the flood risk listWN4 0LA: not on the flood risk listWN4 0LB: not on the flood risk listWN4 0LD: not on the flood risk listWN4 0LH: not on the flood risk listWN4 0LJ: not on the flood risk listWN4 0LL: not on the flood risk listWN4 0LN: not on the flood risk listWN4 0LP: not on the flood risk listWN4 0LR: not on the flood risk listWN4 0LS: not on the flood risk listWN4 0LT: not on the flood risk listWN4 0LU: not on the flood risk listWN4 0LW: not on the flood risk listWN4 0LY: not on the flood risk listWN4 0LZ: not on the flood risk listWN4 0NB: not on the flood risk listWN4 0ND: not on the flood risk listWN4 0NH: not on the flood risk listWN4 0NJ: not on the flood risk listWN4 0NP: not on the flood risk listWN4 0NQ: not on the flood risk listWN4 0NR: not on the flood risk listWN4 0PW: not on the flood risk listWN4 0PX: not on the flood risk listWN4 0PY: not on the flood risk listWN4 0PZ: not on the flood risk listWN4 0QA: not on the flood risk listWN4 0QB: not on the flood risk listWN4 0QD: not on the flood risk listWN4 0QF: not on the flood risk listWN4 0QG: not on the flood risk listWN4 0QJ: not on the flood risk listWN4 0QL: not on the flood risk listWN4 0QN: not on the flood risk listWN4 0QP: not on the flood risk listWN4 0QR: not on the flood risk listWN4 0QS: not on the flood risk listWN4 0QT: not on the flood risk listWN4 0QU: not on the flood risk listWN4 0QW: not on the flood risk listWN4 0QX: not on the flood risk listWN4 0QY: not on the flood risk listWN4 0QZ: not on the flood risk listWN4 0RB: not on the flood risk listWN4 0RD: not on the flood risk listWN4 0RE: not on the flood risk listWN4 0RF: not on the flood risk listWN4 0RG: not on the flood risk listWN4 0RH: not on the flood risk listWN4 0RJ: not on the flood risk listWN4 0RL: not on the flood risk listWN4 0RN: not on the flood risk listWN4 0RP: not on the flood risk listWN4 0RQ: not on the flood risk listWN4 0RR: not on the flood risk listWN4 0RS: not on the flood risk listWN4 0RT: not on the flood risk listWN4 0RU: not on the flood risk listWN4 0RW: not on the flood risk listWN4 0RX: not on the flood risk listWN4 0RY: not on the flood risk listWN4 0SA: not on the flood risk listWN4 0SB: not on the flood risk listWN4 0SD: not on the flood risk listWN4 0SE: not on the flood risk listWN4 0SF: not on the flood risk listWN4 0SG: not on the flood risk listWN4 0SH: not on the flood risk listWN4 0SJ: not on the flood risk listWN4 0SL: not on the flood risk listWN4 0SN: not on the flood risk listWN4 0SP: not on the flood risk listWN4 0SQ: not on the flood risk listWN4 0SR: not on the flood risk listWN4 0SS: not on the flood risk listWN4 0ST: not on the flood risk listWN4 0SU: not on the flood risk listWN4 0SW: not on the flood risk listWN4 0SX: not on the flood risk listWN4 0SY: not on the flood risk listWN4 0SZ: not on the flood risk listWN4 0TA: not on the flood risk listWN4 0TB: not on the flood risk listWN4 0TT: not on the flood risk listWN4 0TU: not on the flood risk listWN4 0TX: not on the flood risk listWN4 0TY: not on the flood risk listWN4 0TZ: not on the flood risk listWN4 0UA: not on the flood risk listWN4 0UB: not on the flood risk listWN4 0UD: not on the flood risk listWN4 0UE: not on the flood risk listWN4 0UF: not on the flood risk listWN4 0UG: not on the flood risk listWN4 0UH: not on the flood risk listWN4 0UQ: not on the flood risk listWN4 0UT: not on the flood risk listWN4 0UU: not on the flood risk listWN4 0XA: not on the flood risk listWN4 0XD: not on the flood risk listWN4 0XH: not on the flood risk listWN4 0XJ: not on the flood risk listWN4 0XS: not on the flood risk listWN4 0XU: not on the flood risk listWN4 0YA: not on the flood risk listWN4 0YB: not on the flood risk listWN4 0YD: not on the flood risk listWN4 0YF: not on the flood risk listWN4 0YT: not on the flood risk listWN4 0YU: not on the flood risk listWN4 0YX: not on the flood risk listWN4 8AB: not on the flood risk listWN4 8AD: not on the flood risk listWN4 8AE: not on the flood risk listWN4 8AG: not on the flood risk listWN4 8AH: not on the flood risk listWN4 8AL: not on the flood risk listWN4 8AN: not on the flood risk listWN4 8AP: not on the flood risk listWN4 8AR: not on the flood risk listWN4 8AS: not on the flood risk listWN4 8AT: not on the flood risk listWN4 8AU: not on the flood risk listWN4 8AX: not on the flood risk listWN4 8AY: not on the flood risk listWN4 8AZ: not on the flood risk listWN4 8BA: not on the flood risk listWN4 8BB: not on the flood risk listWN4 8BH: not on the flood risk listWN4 8BJ: not on the flood risk listWN4 8BN: not on the flood risk listWN4 8BP: not on the flood risk listWN4 8BQ: not on the flood risk listWN4 8BS: not on the flood risk listWN4 8BT: not on the flood risk listWN4 8BU: not on the flood risk listWN4 8BW: not on the flood risk listWN4 8BX: not on the flood risk listWN4 8BY: not on the flood risk listWN4 8BZ: not on the flood risk listWN4 8DA: not on the flood risk listWN4 8DD: not on the flood risk listWN4 8DE: not on the flood risk listWN4 8DF: not on the flood risk listWN4 8DG: not on the flood risk listWN4 8DH: not on the flood risk listWN4 8DL: not on the flood risk listWN4 8DN: not on the flood risk listWN4 8DP: not on the flood risk listWN4 8DQ: not on the flood risk listWN4 8DT: not on the flood risk listWN4 8DU: not on the flood risk listWN4 8DW: not on the flood risk listWN4 8DY: not on the flood risk listWN4 8EB: not on the flood risk listWN4 8ED: not on the flood risk listWN4 8EE: not on the flood risk listWN4 8EF: not on the flood risk listWN4 8EG: not on the flood risk listWN4 8LA: not on the flood risk listWN4 8LB: not on the flood risk listWN4 8LE: not on the flood risk listWN4 8LH: not on the flood risk listWN4 8LJ: not on the flood risk listWN4 8LL: not on the flood risk listWN4 8LN: not on the flood risk listWN4 8LT: not on the flood risk listWN4 8LU: not on the flood risk listWN4 8LW: not on the flood risk listWN4 8LX: not on the flood risk listWN4 8PB: not on the flood risk listWN4 8PD: not on the flood risk listWN4 8PE: not on the flood risk listWN4 8PF: not on the flood risk listWN4 8PG: not on the flood risk listWN4 8PH: not on the flood risk listWN4 8PJ: not on the flood risk listWN4 8PL: not on the flood risk listWN4 8PP: not on the flood risk listWN4 8PQ: not on the flood risk listWN4 8PR: not on the flood risk listWN4 8PT: not on the flood risk listWN4 8QA: not on the flood risk listWN4 8QD: not on the flood risk listWN4 8QP: not on the flood risk listWN4 8QR: not on the flood risk listWN4 8QS: not on the flood risk listWN4 8QT: not on the flood risk listWN4 8QU: not on the flood risk listWN4 8QW: not on the flood risk listWN4 8QX: not on the flood risk listWN4 8QY: not on the flood risk listWN4 8QZ: not on the flood risk listWN4 8RH: not on the flood risk listWN4 8RP: not on the flood risk listWN4 8RQ: not on the flood risk listWN4 8RR: not on the flood risk listWN4 8RS: not on the flood risk listWN4 8RT: not on the flood risk listWN4 8RU: not on the flood risk listWN4 8RW: not on the flood risk listWN4 8RX: not on the flood risk listWN4 8RY: not on the flood risk listWN4 8RZ: not on the flood risk listWN4 8SA: not on the flood risk listWN4 8SB: not on the flood risk listWN4 8SD: not on the flood risk listWN4 8SE: not on the flood risk listWN4 8SF: not on the flood risk listWN4 8SG: not on the flood risk listWN4 8SH: not on the flood risk listWN4 8SJ: not on the flood risk listWN4 8SL: not on the flood risk listWN4 8SN: not on the flood risk listWN4 8SP: not on the flood risk listWN4 8SQ: not on the flood risk listWN4 8SR: not on the flood risk listWN4 8SS: not on the flood risk listWN4 8ST: not on the flood risk listWN4 8SU: not on the flood risk listWN4 8SW: not on the flood risk listWN4 8SX: not on the flood risk listWN4 8SY: not on the flood risk listWN4 8SZ: not on the flood risk listWN4 8TA: not on the flood risk listWN4 8TB: not on the flood risk listWN4 8TD: not on the flood risk listWN4 8TE: not on the flood risk listWN4 8TF: not on the flood risk listWN4 8TG: not on the flood risk listWN4 8TH: not on the flood risk listWN4 8TJ: not on the flood risk listWN4 8TL: not on the flood risk listWN4 8TN: not on the flood risk listWN4 8TP: not on the flood risk listWN4 8TQ: not on the flood risk listWN4 8TR: not on the flood risk listWN4 8TS: not on the flood risk listWN4 8TT: not on the flood risk listWN4 8TU: not on the flood risk listWN4 8TW: not on the flood risk listWN4 8TX: not on the flood risk listWN4 8TY: not on the flood risk listWN4 8TZ: not on the flood risk listWN4 8UA: not on the flood risk listWN4 8UB: not on the flood risk listWN4 8UD: not on the flood risk listWN4 8UE: not on the flood risk listWN4 8UF: not on the flood risk listWN4 8UG: not on the flood risk listWN4 8UQ: not on the flood risk listWN4 8UW: not on the flood risk listWN4 8WA: not on the flood risk listWN4 8WB: not on the flood risk listWN4 8XA: not on the flood risk listWN4 8XB: not on the flood risk listWN4 8XD: not on the flood risk listWN4 8XE: not on the flood risk listWN4 8XF: not on the flood risk listWN4 8XG: not on the flood risk listWN4 8XH: not on the flood risk listWN4 8XJ: not on the flood risk listWN4 8XL: not on the flood risk listWN4 8XN: not on the flood risk listWN4 8XP: not on the flood risk listWN4 8XQ: not on the flood risk listWN4 8XR: not on the flood risk listWN4 8XS: not on the flood risk listWN4 8XT: not on the flood risk listWN4 8XU: not on the flood risk listWN4 8XW: not on the flood risk listWN4 8XX: not on the flood risk listWN4 8XY: not on the flood risk listWN4 8XZ: not on the flood risk listWN4 8YA: not on the flood risk listWN4 8YE: not on the flood risk listWN4 8YF: not on the flood risk listWN4 8YG: not on the flood risk listWN4 9AE: not on the flood risk listWN4 9AL: not on the flood risk listWN4 9BA: not on the flood risk listWN4 9BE: not on the flood risk listWN4 9BF: not on the flood risk listWN4 9BH: not on the flood risk listWN4 9BN: not on the flood risk listWN4 9BP: not on the flood risk listWN4 9BQ: not on the flood risk listWN4 9BS: not on the flood risk listWN4 9BT: not on the flood risk listWN4 9BU: not on the flood risk listWN4 9DB: not on the flood risk listWN4 9DE: not on the flood risk listWN4 9DF: not on the flood risk listWN4 9DG: not on the flood risk listWN4 9DJ: not on the flood risk listWN4 9DL: not on the flood risk listWN4 9DP: not on the flood risk listWN4 9DQ: not on the flood risk listWN4 9DR: not on the flood risk listWN4 9DS: not on the flood risk listWN4 9DT: not on the flood risk listWN4 9DU: not on the flood risk listWN4 9DW: not on the flood risk listWN4 9DX: not on the flood risk listWN4 9DY: not on the flood risk listWN4 9DZ: not on the flood risk listWN4 9EA: not on the flood risk listWN4 9EB: not on the flood risk listWN4 9ED: not on the flood risk listWN4 9EE: not on the flood risk listWN4 9EF: not on the flood risk listWN4 9EG: not on the flood risk listWN4 9EH: not on the flood risk listWN4 9EJ: not on the flood risk listWN4 9EL: not on the flood risk listWN4 9EN: not on the flood risk listWN4 9EP: not on the flood risk listWN4 9EQ: not on the flood risk listWN4 9ER: not on the flood risk listWN4 9ES: not on the flood risk listWN4 9ET: not on the flood risk listWN4 9EU: not on the flood risk listWN4 9EX: not on the flood risk listWN4 9EY: not on the flood risk listWN4 9EZ: not on the flood risk listWN4 9GD: not on the flood risk listWN4 9HE: not on the flood risk listWN4 9HH: not on the flood risk listWN4 9HJ: not on the flood risk listWN4 9HP: not on the flood risk listWN4 9HR: not on the flood risk listWN4 9HS: not on the flood risk listWN4 9HW: not on the flood risk listWN4 9HY: not on the flood risk listWN4 9JE: not on the flood risk listWN4 9JF: not on the flood risk listWN4 9JL: not on the flood risk listWN4 9JN: not on the flood risk listWN4 9JP: not on the flood risk listWN4 9JR: not on the flood risk listWN4 9JW: not on the flood risk listWN4 9JX: not on the flood risk listWN4 9JZ: not on the flood risk listWN4 9LA: not on the flood risk listWN4 9LB: not on the flood risk listWN4 9LD: not on the flood risk listWN4 9LE: not on the flood risk listWN4 9LF: not on the flood risk listWN4 9LG: not on the flood risk listWN4 9LH: not on the flood risk listWN4 9LJ: not on the flood risk listWN4 9LL: not on the flood risk listWN4 9LP: not on the flood risk listWN4 9LQ: not on the flood risk listWN4 9LR: not on the flood risk listWN4 9LS: not on the flood risk listWN4 9LT: not on the flood risk listWN4 9LU: not on the flood risk listWN4 9LW: not on the flood risk listWN4 9LX: not on the flood risk listWN4 9LZ: not on the flood risk listWN4 9NB: not on the flood risk listWN4 9ND: not on the flood risk listWN4 9NE: not on the flood risk listWN4 9NF: not on the flood risk listWN4 9NG: not on the flood risk listWN4 9NH: not on the flood risk listWN4 9NJ: not on the flood risk listWN4 9NL: not on the flood risk listWN4 9NN: not on the flood risk listWN4 9NP: not on the flood risk listWN4 9NQ: not on the flood risk listWN4 9NR: not on the flood risk listWN4 9NS: not on the flood risk listWN4 9NT: not on the flood risk listWN4 9NU: not on the flood risk listWN4 9NX: not on the flood risk listWN4 9PA: not on the flood risk listWN4 9PB: not on the flood risk listWN4 9PD: not on the flood risk listWN4 9PE: not on the flood risk listWN4 9PF: not on the flood risk listWN4 9PG: not on the flood risk listWN4 9PH: not on the flood risk listWN4 9PJ: not on the flood risk listWN4 9PL: not on the flood risk listWN4 9PP: not on the flood risk listWN4 9PQ: not on the flood risk listWN4 9PR: not on the flood risk listWN4 9PS: not on the flood risk listWN4 9PT: not on the flood risk listWN4 9PU: not on the flood risk listWN4 9PW: not on the flood risk listWN4 9PZ: not on the flood risk listWN4 9QG: not on the flood risk listWN4 9QH: not on the flood risk listWN4 9QJ: not on the flood risk listWN4 9QL: not on the flood risk listWN4 9QN: not on the flood risk listWN4 9QP: not on the flood risk listWN4 9QQ: not on the flood risk listWN4 9QS: not on the flood risk listWN4 9QT: not on the flood risk listWN4 9QU: not on the flood risk listWN4 9QW: not on the flood risk listWN4 9QX: not on the flood risk listWN4 9QY: not on the flood risk listWN4 9QZ: not on the flood risk listWN4 9RA: not on the flood risk listWN4 9RB: not on the flood risk listWN4 9RD: not on the flood risk listWN4 9RE: not on the flood risk listWN4 9RF: not on the flood risk listWN4 9RG: not on the flood risk listWN4 9RH: not on the flood risk listWN4 9RJ: not on the flood risk listWN4 9RL: not on the flood risk listWN4 9RN: not on the flood risk listWN4 9RP: not on the flood risk listWN4 9RQ: not on the flood risk listWN4 9RR: not on the flood risk listWN4 9RS: not on the flood risk listWN4 9RT: not on the flood risk listWN4 9RU: not on the flood risk listWN4 9RW: not on the flood risk listWN4 9RX: not on the flood risk listWN4 9RY: not on the flood risk listWN4 9RZ: not on the flood risk listWN4 9SA: not on the flood risk listWN4 9SB: not on the flood risk listWN4 9SD: not on the flood risk listWN4 9SE: not on the flood risk listWN4 9SF: not on the flood risk listWN4 9SG: not on the flood risk listWN4 9SH: not on the flood risk listWN4 9SJ: not on the flood risk listWN4 9SP: not on the flood risk listWN4 9SQ: not on the flood risk listWN4 9SS: not on the flood risk listWN4 9ST: not on the flood risk listWN4 9SU: not on the flood risk listWN4 9SX: not on the flood risk listWN4 9TA: not on the flood risk listWN4 9TB: not on the flood risk listWN4 9TE: not on the flood risk listWN4 9TP: not on the flood risk listWN4 9TR: not on the flood risk listWN4 9TT: not on the flood risk listWN4 9TU: not on the flood risk listWN4 9TW: not on the flood risk listWN4 9TX: not on the flood risk listWN4 9TY: not on the flood risk listWN4 9TZ: not on the flood risk listWN4 9UA: not on the flood risk listWN4 9UB: not on the flood risk listWN4 9UD: not on the flood risk listWN4 9UE: not on the flood risk listWN4 9UF: not on the flood risk listWN4 9UG: not on the flood risk listWN4 9UH: not on the flood risk listWN4 9UJ: not on the flood risk listWN4 9UL: not on the flood risk listWN4 9UN: not on the flood risk listWN4 9UP: not on the flood risk listWN4 9UQ: not on the flood risk listWN4 9UR: not on the flood risk listWN4 9UT: not on the flood risk listWN4 9UU: not on the flood risk listWN4 9UW: not on the flood risk listWN4 9UX: not on the flood risk listWN4 9UY: not on the flood risk listWN4 9UZ: not on the flood risk listWN4 9XA: not on the flood risk listWN4 9XB: not on the flood risk listWN4 9XD: not on the flood risk listWN4 9XE: not on the flood risk listWN4 9XF: not on the flood risk listWN4 9XG: not on the flood risk listWN4 9XH: not on the flood risk listWN4 9XQ: not on the flood risk listWN4 8AF: low flood risk at worstWN4 8BD: low flood risk at worstWN4 8BE: low flood risk at worstWN4 8BG: low flood risk at worstWN4 8LD: low flood risk at worstWN4 8LG: low flood risk at worstWN4 9AX: low flood risk at worstWN4 9BG: low flood risk at worstWN4 9HZ: low flood risk at worstWN4 9JA: low flood risk at worstWN4 9JB: low flood risk at worstWN4 9JY: low flood risk at worstWN4 9PY: low flood risk at worstWN4 9SL: low flood risk at worstWN4 0NA: medium flood risk at worstWN4 9HU: medium flood risk at worstWN4 9HX: medium flood risk at worstWN4 0NG: high flood riskWN4 0PA: high flood riskWN4 8AA: high flood riskWN4 8PA: high flood riskWN4 8QQ: high flood riskWN4 9AA: high flood riskWN4 9AB: high flood riskWN4 9AF: high flood riskWN4 9AG: high flood riskWN4 9AN: high flood riskWN4 9AR: high flood riskWN4 9AU: high flood riskWN4 9BJ: high flood riskWN4 9DA: high flood riskWN4 9DD: high flood riskWN4 9DH: high flood riskWN4 9HT: high flood riskWN4 9JD: high flood risk Ashton-in-Makerfield 12 postcodes at high or medium risk, outlined: this goes to WN4 9AR, the one with most homes and businesses at high risk12 postcodes at high or medium risk Map of every postcode in WN4, by flood risk Of the 604 postcodes in WN4 that ONS places, 20 have a home or business at high risk, 3 are at medium risk at worst, 14 are at low risk at worst and 567 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 12 postcodes at high or medium risk. 5 postcodes lie beyond the edge and are listed under the map. Places named: Ashton-in-Makerfield. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M6 Ashton-in-Makerfield
  • A home or business at high risk: 20
  • At medium risk at worst: 3
  • At low risk at worst: 14
  • At very low risk only: 0
  • Not on the at-risk list: 567
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 604 postcodes in WN4 that ONS places, 20 have a home or business at high risk, 3 are at medium risk at worst, 14 are at low risk at worst and 567 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 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 53.4937, longitude -2.6445. 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

20 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.

WN4 9AR22 at high riskWN4 9DA15 at high riskWN4 9AA13 at high riskWN4 9AG9 at high riskWN4 9BJ8 at high riskWN4 9AS4 at high riskWN4 8PA3 at high riskWN4 9AF3 at high riskWN4 9DH3 at high riskWN4 8QQ2 at high riskWN4 0PA2 at high riskWN4 9AT2 at high risk

5 further out, not drawn

These postcodes lie well apart from the rest, so the map is drawn without them to show the rest closer; they are in every count.

WN4 0ELWN4 0TWWN4 0XLWN4 0XRWN4 8YB

Where the postcodes at high or medium risk lie together

  • 12 postcodes at high or medium risk, outlined on the map. WN4 9AR, is the one with most homes and businesses at high risk.

What broadband can you get in WN4?

Ofcom reports on 598 of the 604 postcodes in WN4. At 536 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit536 of 598
Postcodes where every home can get superfast574 of 598

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 WN4 at risk of flooding?

37 of the 604 postcodes in WN4 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 120 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 37 of 604 postcodes High: 95Medium: 25Low: 118

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 WN4?

Homes in WN4 sold for a typical £199,995 in the 12 months to August 2026, across 299 sales, up 6.9% on the 12 months before, HM Land Registry's figures show.

£199,995 typical price, the 12 months to August 2026
£187,000 12 months to August 2025
▲ up 6.9% on the 12 months before
  • Detached £322,500 56 sales
  • Semi-detached £198,000 173 sales
  • Terraced £157,000 66 sales
  • Flat or maisonette 4 sales, too few to price

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 WN4

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

WN4 0193 postcodesWN4 8180 postcodesWN4 9231 postcodes
UK postcode format explained

Places in WN4

Towns and villages with postcodes in WN4, and how many each has here.

Ashton-in-Makerfield postcodes,543Wigan postcodes,1

Who covers WN4

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

  • Makerfield506
  • St Helens North94
  • Leigh and Atherton3
  • Wigan1

Police force areas

  • Greater Manchester510
  • Merseyside94

Next to WN4

WN3 postcode district WN5 postcode district All WN districts Ashton-in-Makerfield postcodes

"Next to" is by number: the districts before and after WN4 in the WN area.

Check a postcode

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