OL1 postcode district: Oldham and around

OL1 is a postcode district in England, with 777 postcodes in use in 5 sectors. It has postcodes in Oldham, Chadderton, Royton and 1 more place. Its council is Oldham.

Postcodes in use
777
Sectors
5
Council
Oldham
Places
4 places

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

Every postcode in OL1, by flood risk

Map of every postcode in OL1, by flood risk Of the 777 postcodes in OL1 that ONS places, 1 have a home or business at high risk, 4 are at low risk at worst and 772 are not on the Environment Agency's at-risk list. Places named: Oldham, Chadderton, Royton, Lees. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. OL1 1AA: not on the flood risk listOL1 1AD: not on the flood risk listOL1 1AL: not on the flood risk listOL1 1AN: not on the flood risk listOL1 1AP: not on the flood risk listOL1 1BA: not on the flood risk listOL1 1BB: not on the flood risk listOL1 1BD: not on the flood risk listOL1 1BT: not on the flood risk listOL1 1DE: not on the flood risk listOL1 1DJ: not on the flood risk listOL1 1DU: not on the flood risk listOL1 1DZ: not on the flood risk listOL1 1ED: not on the flood risk listOL1 1EG: not on the flood risk listOL1 1EP: not on the flood risk listOL1 1HA: not on the flood risk listOL1 1HD: not on the flood risk listOL1 1HP: not on the flood risk listOL1 1HU: not on the flood risk listOL1 1HY: not on the flood risk listOL1 1JA: not on the flood risk listOL1 1JD: not on the flood risk listOL1 1JZ: not on the flood risk listOL1 1LB: not on the flood risk listOL1 1LE: not on the flood risk listOL1 1LP: not on the flood risk listOL1 1LT: not on the flood risk listOL1 1LU: not on the flood risk listOL1 1LW: not on the flood risk listOL1 1NG: not on the flood risk listOL1 1NH: not on the flood risk listOL1 1NJ: not on the flood risk listOL1 1NL: not on the flood risk listOL1 1NN: not on the flood risk listOL1 1NR: not on the flood risk listOL1 1NT: not on the flood risk listOL1 1NW: not on the flood risk listOL1 1PF: not on the flood risk listOL1 1PL: not on the flood risk listOL1 1QN: not on the flood risk listOL1 1QX: not on the flood risk listOL1 1RA: not on the flood risk listOL1 1RD: not on the flood risk listOL1 1RT: not on the flood risk listOL1 1RU: not on the flood risk listOL1 1SB: not on the flood risk listOL1 1SG: not on the flood risk listOL1 1SH: not on the flood risk listOL1 1SJ: not on the flood risk listOL1 1SN: not on the flood risk listOL1 1SR: not on the flood risk listOL1 1ST: not on the flood risk listOL1 1TD: not on the flood risk listOL1 1TT: not on the flood risk listOL1 1TU: not on the flood risk listOL1 1TX: not on the flood risk listOL1 1TZ: not on the flood risk listOL1 1UA: not on the flood risk listOL1 1UT: not on the flood risk listOL1 1XD: not on the flood risk listOL1 2AA: not on the flood risk listOL1 2AB: not on the flood risk listOL1 2AE: not on the flood risk listOL1 2AG: not on the flood risk listOL1 2AJ: not on the flood risk listOL1 2AL: not on the flood risk listOL1 2AN: not on the flood risk listOL1 2AQ: not on the flood risk listOL1 2AR: not on the flood risk listOL1 2AS: not on the flood risk listOL1 2AT: not on the flood risk listOL1 2AU: not on the flood risk listOL1 2AY: not on the flood risk listOL1 2BA: not on the flood risk listOL1 2BH: not on the flood risk listOL1 2BL: not on the flood risk listOL1 2BN: not on the flood risk listOL1 2BP: not on the flood risk listOL1 2BQ: not on the flood risk listOL1 2BS: not on the flood risk listOL1 2BT: not on the flood risk listOL1 2BU: not on the flood risk listOL1 2BX: not on the flood risk listOL1 2BY: not on the flood risk listOL1 2BZ: not on the flood risk listOL1 2DB: not on the flood risk listOL1 2DD: not on the flood risk listOL1 2DE: not on the flood risk listOL1 2DP: not on the flood risk listOL1 2DT: not on the flood risk listOL1 2DU: not on the flood risk listOL1 2DY: not on the flood risk listOL1 2EA: not on the flood risk listOL1 2EB: not on the flood risk listOL1 2EE: not on the flood risk listOL1 2EF: not on the flood risk listOL1 2EH: not on the flood risk listOL1 2EJ: not on the flood risk listOL1 2EL: not on the flood risk listOL1 2EW: not on the flood risk listOL1 2EY: not on the flood risk listOL1 2HA: not on the flood risk listOL1 2HD: not on the flood risk listOL1 2HF: not on the flood risk listOL1 2HG: not on the flood risk listOL1 2HH: not on the flood risk listOL1 2HJ: not on the flood risk listOL1 2HL: not on the flood risk listOL1 2HN: not on the flood risk listOL1 2HP: not on the flood risk listOL1 2HQ: not on the flood risk listOL1 2HR: not on the flood risk listOL1 2HX: not on the flood risk listOL1 2HZ: not on the flood risk listOL1 2JG: not on the flood risk listOL1 2JH: not on the flood risk listOL1 2JJ: not on the flood risk listOL1 2JL: not on the flood risk listOL1 2JN: not on the flood risk listOL1 2JP: not on the flood risk listOL1 2JQ: not on the flood risk listOL1 2JR: not on the flood risk listOL1 2JS: not on the flood risk listOL1 2JT: not on the flood risk listOL1 2JU: not on the flood risk listOL1 2JX: not on the flood risk listOL1 2LD: not on the flood risk listOL1 2LE: not on the flood risk listOL1 2LJ: not on the flood risk listOL1 2LP: not on the flood risk listOL1 2LS: not on the flood risk listOL1 2LX: not on the flood risk listOL1 2LY: not on the flood risk listOL1 2NA: not on the flood risk listOL1 2NG: not on the flood risk listOL1 2NH: not on the flood risk listOL1 2NJ: not on the flood risk listOL1 2NL: not on the flood risk listOL1 2NN: not on the flood risk listOL1 2NP: not on the flood risk listOL1 2NR: not on the flood risk listOL1 2NS: not on the flood risk listOL1 2NT: not on the flood risk listOL1 2NU: not on the flood risk listOL1 2NX: not on the flood risk listOL1 2NY: not on the flood risk listOL1 2NZ: not on the flood risk listOL1 2PB: not on the flood risk listOL1 2PD: not on the flood risk listOL1 2PE: not on the flood risk listOL1 2PH: not on the flood risk listOL1 2PJ: not on the flood risk listOL1 2PN: not on the flood risk listOL1 2PP: not on the flood risk listOL1 2PQ: not on the flood risk listOL1 2PR: not on the flood risk listOL1 2PS: not on the flood risk listOL1 2PT: not on the flood risk listOL1 2PW: not on the flood risk listOL1 2PX: not on the flood risk listOL1 2PY: not on the flood risk listOL1 2QA: not on the flood risk listOL1 2QB: not on the flood risk listOL1 2QD: not on the flood risk listOL1 2QE: not on the flood risk listOL1 2QF: not on the flood risk listOL1 2QG: not on the flood risk listOL1 2QH: not on the flood risk listOL1 2QJ: not on the flood risk listOL1 2QL: not on the flood risk listOL1 2QP: not on the flood risk listOL1 2QQ: not on the flood risk listOL1 2QR: not on the flood risk listOL1 2QS: not on the flood risk listOL1 2QT: not on the flood risk listOL1 2QU: not on the flood risk listOL1 2QW: not on the flood risk listOL1 2QY: not on the flood risk listOL1 2QZ: not on the flood risk listOL1 2RA: not on the flood risk listOL1 2RB: not on the flood risk listOL1 2RD: not on the flood risk listOL1 2RF: not on the flood risk listOL1 2RG: not on the flood risk listOL1 2RH: not on the flood risk listOL1 2RL: not on the flood risk listOL1 2RP: not on the flood risk listOL1 2RQ: not on the flood risk listOL1 2RT: not on the flood risk listOL1 2RU: not on the flood risk listOL1 2RY: not on the flood risk listOL1 2RZ: not on the flood risk listOL1 2SA: not on the flood risk listOL1 2SB: not on the flood risk listOL1 2SP: not on the flood risk listOL1 2SR: not on the flood risk listOL1 2SS: not on the flood risk listOL1 2SU: not on the flood risk listOL1 2SX: not on the flood risk listOL1 2SY: not on the flood risk listOL1 2TB: not on the flood risk listOL1 2TG: not on the flood risk listOL1 2TJ: not on the flood risk listOL1 2TL: not on the flood risk listOL1 2TP: not on the flood risk listOL1 2TQ: not on the flood risk listOL1 2TR: not on the flood risk listOL1 2TS: not on the flood risk listOL1 2TT: not on the flood risk listOL1 2TU: not on the flood risk listOL1 2TW: not on the flood risk listOL1 2UB: not on the flood risk listOL1 2UD: not on the flood risk listOL1 2XA: not on the flood risk listOL1 2XD: not on the flood risk listOL1 2XE: not on the flood risk listOL1 2XJ: not on the flood risk listOL1 2XL: not on the flood risk listOL1 2XN: not on the flood risk listOL1 2XP: not on the flood risk listOL1 2XR: not on the flood risk listOL1 2XS: not on the flood risk listOL1 2XU: not on the flood risk listOL1 2XW: not on the flood risk listOL1 3AA: not on the flood risk listOL1 3AB: not on the flood risk listOL1 3AE: not on the flood risk listOL1 3AJ: not on the flood risk listOL1 3AN: not on the flood risk listOL1 3BB: not on the flood risk listOL1 3BP: not on the flood risk listOL1 3BS: not on the flood risk listOL1 3BX: not on the flood risk listOL1 3BY: not on the flood risk listOL1 3BZ: not on the flood risk listOL1 3DA: not on the flood risk listOL1 3DD: not on the flood risk listOL1 3DE: not on the flood risk listOL1 3DH: not on the flood risk listOL1 3DJ: not on the flood risk listOL1 3DL: not on the flood risk listOL1 3DP: not on the flood risk listOL1 3DQ: not on the flood risk listOL1 3DR: not on the flood risk listOL1 3DS: not on the flood risk listOL1 3DT: not on the flood risk listOL1 3EA: not on the flood risk listOL1 3EF: not on the flood risk listOL1 3EG: not on the flood risk listOL1 3EH: not on the flood risk listOL1 3EJ: not on the flood risk listOL1 3EL: not on the flood risk listOL1 3EN: not on the flood risk listOL1 3EQ: not on the flood risk listOL1 3ER: not on the flood risk listOL1 3ES: not on the flood risk listOL1 3EW: not on the flood risk listOL1 3EX: not on the flood risk listOL1 3EZ: not on the flood risk listOL1 3FR: not on the flood risk listOL1 3FS: not on the flood risk listOL1 3FT: not on the flood risk listOL1 3FU: not on the flood risk listOL1 3FX: not on the flood risk listOL1 3HB: not on the flood risk listOL1 3HD: not on the flood risk listOL1 3HE: not on the flood risk listOL1 3HL: not on the flood risk listOL1 3HQ: not on the flood risk listOL1 3HR: not on the flood risk listOL1 3HS: not on the flood risk listOL1 3HY: not on the flood risk listOL1 3HZ: not on the flood risk listOL1 3JA: not on the flood risk listOL1 3JB: not on the flood risk listOL1 3JD: not on the flood risk listOL1 3JG: not on the flood risk listOL1 3JH: not on the flood risk listOL1 3JJ: not on the flood risk listOL1 3JL: not on the flood risk listOL1 3JN: not on the flood risk listOL1 3JP: not on the flood risk listOL1 3JS: not on the flood risk listOL1 3JT: not on the flood risk listOL1 3JU: not on the flood risk listOL1 3JW: not on the flood risk listOL1 3JX: not on the flood risk listOL1 3JY: not on the flood risk listOL1 3JZ: not on the flood risk listOL1 3LG: not on the flood risk listOL1 3LJ: not on the flood risk listOL1 3LL: not on the flood risk listOL1 3LQ: not on the flood risk listOL1 3LT: not on the flood risk listOL1 3LX: not on the flood risk listOL1 3LY: not on the flood risk listOL1 3LZ: not on the flood risk listOL1 3NB: not on the flood risk listOL1 3NE: not on the flood risk listOL1 3NG: not on the flood risk listOL1 3NN: not on the flood risk listOL1 3NP: not on the flood risk listOL1 3NR: not on the flood risk listOL1 3NS: not on the flood risk listOL1 3NU: not on the flood risk listOL1 3NY: not on the flood risk listOL1 3PF: not on the flood risk listOL1 3PG: not on the flood risk listOL1 3PS: not on the flood risk listOL1 3PW: not on the flood risk listOL1 3PX: not on the flood risk listOL1 3PY: not on the flood risk listOL1 3QB: not on the flood risk listOL1 3QE: not on the flood risk listOL1 3QF: not on the flood risk listOL1 3QH: not on the flood risk listOL1 3QJ: not on the flood risk listOL1 3QL: not on the flood risk listOL1 3QQ: not on the flood risk listOL1 3QT: not on the flood risk listOL1 3QU: not on the flood risk listOL1 3QW: not on the flood risk listOL1 3RE: not on the flood risk listOL1 3RF: not on the flood risk listOL1 3RG: not on the flood risk listOL1 3RH: not on the flood risk listOL1 3RL: not on the flood risk listOL1 3RP: not on the flood risk listOL1 3RQ: not on the flood risk listOL1 3RS: not on the flood risk listOL1 3RU: not on the flood risk listOL1 3SE: not on the flood risk listOL1 3SQ: not on the flood risk listOL1 3SW: not on the flood risk listOL1 3SX: not on the flood risk listOL1 3TD: not on the flood risk listOL1 3TH: not on the flood risk listOL1 3TL: not on the flood risk listOL1 3UB: not on the flood risk listOL1 3UE: not on the flood risk listOL1 3UF: not on the flood risk listOL1 3UH: not on the flood risk listOL1 3UJ: not on the flood risk listOL1 3UL: not on the flood risk listOL1 3UP: not on the flood risk listOL1 3UR: not on the flood risk listOL1 3UT: not on the flood risk listOL1 3UW: not on the flood risk listOL1 3UY: not on the flood risk listOL1 3UZ: not on the flood risk listOL1 3XA: not on the flood risk listOL1 3XB: not on the flood risk listOL1 3XD: not on the flood risk listOL1 3XE: not on the flood risk listOL1 4AA: not on the flood risk listOL1 4AB: not on the flood risk listOL1 4AE: not on the flood risk listOL1 4AH: not on the flood risk listOL1 4AN: not on the flood risk listOL1 4AP: not on the flood risk listOL1 4AR: not on the flood risk listOL1 4AS: not on the flood risk listOL1 4AT: not on the flood risk listOL1 4AU: not on the flood risk listOL1 4AW: not on the flood risk listOL1 4AX: not on the flood risk listOL1 4BE: not on the flood risk listOL1 4BJ: not on the flood risk listOL1 4BL: not on the flood risk listOL1 4BQ: not on the flood risk listOL1 4BS: not on the flood risk listOL1 4BT: not on the flood risk listOL1 4BU: not on the flood risk listOL1 4BW: not on the flood risk listOL1 4BX: not on the flood risk listOL1 4BY: not on the flood risk listOL1 4DA: not on the flood risk listOL1 4DD: not on the flood risk listOL1 4DE: not on the flood risk listOL1 4DF: not on the flood risk listOL1 4DJ: not on the flood risk listOL1 4DL: not on the flood risk listOL1 4DP: not on the flood risk listOL1 4DR: not on the flood risk listOL1 4DS: not on the flood risk listOL1 4DW: not on the flood risk listOL1 4DX: not on the flood risk listOL1 4DY: not on the flood risk listOL1 4EA: not on the flood risk listOL1 4EB: not on the flood risk listOL1 4EF: not on the flood risk listOL1 4EG: not on the flood risk listOL1 4EH: not on the flood risk listOL1 4EL: not on the flood risk listOL1 4EN: not on the flood risk listOL1 4EP: not on the flood risk listOL1 4EQ: not on the flood risk listOL1 4ER: not on the flood risk listOL1 4ET: not on the flood risk listOL1 4EW: not on the flood risk listOL1 4EX: not on the flood risk listOL1 4EY: not on the flood risk listOL1 4EZ: not on the flood risk listOL1 4FH: not on the flood risk listOL1 4FL: not on the flood risk listOL1 4GA: not on the flood risk listOL1 4GP: not on the flood risk listOL1 4GY: not on the flood risk listOL1 4HA: not on the flood risk listOL1 4HB: not on the flood risk listOL1 4HD: not on the flood risk listOL1 4HE: not on the flood risk listOL1 4HF: not on the flood risk listOL1 4HG: not on the flood risk listOL1 4HJ: not on the flood risk listOL1 4HN: not on the flood risk listOL1 4HP: not on the flood risk listOL1 4HQ: not on the flood risk listOL1 4HR: not on the flood risk listOL1 4HT: not on the flood risk listOL1 4HU: not on the flood risk listOL1 4HW: not on the flood risk listOL1 4HY: not on the flood risk listOL1 4HZ: not on the flood risk listOL1 4JB: not on the flood risk listOL1 4JD: not on the flood risk listOL1 4JE: not on the flood risk listOL1 4JG: not on the flood risk listOL1 4JH: not on the flood risk listOL1 4JL: not on the flood risk listOL1 4JN: not on the flood risk listOL1 4JP: not on the flood risk listOL1 4JQ: not on the flood risk listOL1 4JS: not on the flood risk listOL1 4JU: not on the flood risk listOL1 4JW: not on the flood risk listOL1 4JX: not on the flood risk listOL1 4LA: not on the flood risk listOL1 4LD: not on the flood risk listOL1 4LF: not on the flood risk listOL1 4LG: not on the flood risk listOL1 4LH: not on the flood risk listOL1 4LJ: not on the flood risk listOL1 4LP: not on the flood risk listOL1 4LQ: not on the flood risk listOL1 4LR: not on the flood risk listOL1 4LS: not on the flood risk listOL1 4LT: not on the flood risk listOL1 4LU: not on the flood risk listOL1 4LW: not on the flood risk listOL1 4LX: not on the flood risk listOL1 4LY: not on the flood risk listOL1 4NA: not on the flood risk listOL1 4NB: not on the flood risk listOL1 4ND: not on the flood risk listOL1 4NE: not on the flood risk listOL1 4NF: not on the flood risk listOL1 4NG: not on the flood risk listOL1 4NH: not on the flood risk listOL1 4NJ: not on the flood risk listOL1 4NL: not on the flood risk listOL1 4NN: not on the flood risk listOL1 4NP: not on the flood risk listOL1 4NR: not on the flood risk listOL1 4NS: not on the flood risk listOL1 4NT: not on the flood risk listOL1 4NU: not on the flood risk listOL1 4NW: not on the flood risk listOL1 4NX: not on the flood risk listOL1 4NY: not on the flood risk listOL1 4NZ: not on the flood risk listOL1 4PB: not on the flood risk listOL1 4PE: not on the flood risk listOL1 4PF: not on the flood risk listOL1 4PG: not on the flood risk listOL1 4PH: not on the flood risk listOL1 4PJ: not on the flood risk listOL1 4PN: not on the flood risk listOL1 4PP: not on the flood risk listOL1 4PQ: not on the flood risk listOL1 4PR: not on the flood risk listOL1 4PS: not on the flood risk listOL1 4PT: not on the flood risk listOL1 4PU: not on the flood risk listOL1 4PW: not on the flood risk listOL1 4PX: not on the flood risk listOL1 4PY: not on the flood risk listOL1 4PZ: not on the flood risk listOL1 4QA: not on the flood risk listOL1 4QB: not on the flood risk listOL1 4QE: not on the flood risk listOL1 4QF: not on the flood risk listOL1 4QG: not on the flood risk listOL1 4QH: not on the flood risk listOL1 4QJ: not on the flood risk listOL1 4QN: not on the flood risk listOL1 4QP: not on the flood risk listOL1 4QR: not on the flood risk listOL1 4QS: not on the flood risk listOL1 4QT: not on the flood risk listOL1 4QU: not on the flood risk listOL1 4QW: not on the flood risk listOL1 4QX: not on the flood risk listOL1 4QY: not on the flood risk listOL1 4QZ: not on the flood risk listOL1 4RA: not on the flood risk listOL1 4RB: not on the flood risk listOL1 4RE: not on the flood risk listOL1 4RF: not on the flood risk listOL1 4RH: not on the flood risk listOL1 4RJ: not on the flood risk listOL1 4RL: not on the flood risk listOL1 4RN: not on the flood risk listOL1 4RP: not on the flood risk listOL1 4RQ: not on the flood risk listOL1 4RR: not on the flood risk listOL1 4RS: not on the flood risk listOL1 4RT: not on the flood risk listOL1 4RU: not on the flood risk listOL1 4RW: not on the flood risk listOL1 4RX: not on the flood risk listOL1 4SA: not on the flood risk listOL1 4SD: not on the flood risk listOL1 4SE: not on the flood risk listOL1 4SF: not on the flood risk listOL1 4SJ: not on the flood risk listOL1 4SL: not on the flood risk listOL1 4SP: not on the flood risk listOL1 4SQ: not on the flood risk listOL1 4SS: not on the flood risk listOL1 4ST: not on the flood risk listOL1 4SU: not on the flood risk listOL1 4SX: not on the flood risk listOL1 4TA: not on the flood risk listOL1 4TB: not on the flood risk listOL1 4TD: not on the flood risk listOL1 4TE: not on the flood risk listOL1 4TG: not on the flood risk listOL1 4TH: not on the flood risk listOL1 4TJ: not on the flood risk listOL1 4TL: not on the flood risk listOL1 4TN: not on the flood risk listOL1 4TP: not on the flood risk listOL1 4TR: not on the flood risk listOL1 4WH: not on the flood risk listOL1 2RR: low flood risk at worstOL1 2RX: low flood risk at worstOL1 2SZ: low flood risk at worstOL1 2TX: low flood risk at worstOL1 4SR: high flood risk OldhamChaddertonRoytonLees Map of every postcode in OL1, by flood risk Of the 777 postcodes in OL1 that ONS places, 1 have a home or business at high risk, 4 are at low risk at worst and 772 are not on the Environment Agency's at-risk list. Places named: Oldham, Chadderton, Royton, Lees. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. A663A671A62 OldhamChaddertonRoytonLees
  • A home or business at high risk: 1
  • At medium risk at worst: 0
  • At low risk at worst: 4
  • At very low risk only: 0
  • Not on the at-risk list: 772

Of the 777 postcodes in OL1 that ONS places, 1 have a home or business at high risk, 4 are at low risk at worst and 772 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 53.5499, longitude -2.1069. 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

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

OL1 4SR1 at high risk

What broadband can you get in OL1?

Ofcom reports on 693 of the 777 postcodes in OL1. At 608 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit608 of 693
Postcodes where every home can get superfast672 of 693

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 OL1 at risk of flooding?

5 of the 777 postcodes in OL1 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 home or business in an area at high or medium risk.

Homes and businesses in an area at risk, at 5 of 777 postcodes High: 1Low: 26

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 OL1?

Homes in OL1 sold for a typical £190,000 in the 12 months to August 2026, across 143 sales, up 15.9% on the 12 months before, HM Land Registry's figures show.

£190,000 typical price, the 12 months to August 2026
12 months to August 2025
£164,000
12 months to August 2026
£190,000

▲ up 15.9% on the 12 months before

Detached£370,000 24 sales
Semi-detached£204,000 52 sales
Terraced£150,000 59 sales
Flat or maisonette£96,000 8 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 OL1

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

OL1 1100 postcodesOL1 2205 postcodesOL1 3182 postcodesOL1 4225 postcodesOL1 965 postcodes
UK postcode format explained

Places in OL1

Towns and villages with postcodes in OL1, and how many each has here.

Oldham postcodes,709Chadderton postcodes,48Royton postcodes,8Middleton postcodes,1

Who covers OL1

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

  • Oldham East and Saddleworth449
  • Oldham West, Chadderton and Royton328

Police force areas

  • Greater Manchester777

Next to OL1

OL2 postcode district All OL districts Oldham postcodes

"Next to" is by number: the district after OL1 in the OL area.

Check a postcode

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