DN12 postcode district: Conisbrough and around

DN12 is a postcode district in England, with 630 postcodes in use in 4 sectors. It has postcodes in Conisbrough, Warmsworth and Denaby Main. It is split between 2 councils: Doncaster (628 postcodes) and Rotherham (2).

Postcodes in use
630
Sectors
4
Councils
2 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 DN12, by flood risk

Map of every postcode in DN12, by flood risk Of the 630 postcodes in DN12 that ONS places, 7 have a home or business at high risk, 6 are at medium risk at worst, 13 are at low risk at worst, 1 are at very low risk only and 603 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Conisbrough, Warmsworth, Denaby Main. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. M18A630 DN12 1AA: not on the flood risk listDN12 1AB: not on the flood risk listDN12 1AD: not on the flood risk listDN12 1AE: not on the flood risk listDN12 1AF: not on the flood risk listDN12 1AH: not on the flood risk listDN12 1AJ: not on the flood risk listDN12 1AL: not on the flood risk listDN12 1AP: not on the flood risk listDN12 1AR: not on the flood risk listDN12 1AS: not on the flood risk listDN12 1AT: not on the flood risk listDN12 1AU: not on the flood risk listDN12 1AW: not on the flood risk listDN12 1AX: not on the flood risk listDN12 1AY: not on the flood risk listDN12 1AZ: not on the flood risk listDN12 1BA: not on the flood risk listDN12 1BD: not on the flood risk listDN12 1BE: not on the flood risk listDN12 1BF: not on the flood risk listDN12 1BG: not on the flood risk listDN12 1BH: not on the flood risk listDN12 1BJ: not on the flood risk listDN12 1BL: not on the flood risk listDN12 1BN: not on the flood risk listDN12 1BP: not on the flood risk listDN12 1BS: not on the flood risk listDN12 1BT: not on the flood risk listDN12 1BU: not on the flood risk listDN12 1BW: not on the flood risk listDN12 1BY: not on the flood risk listDN12 1BZ: not on the flood risk listDN12 1DA: not on the flood risk listDN12 1DF: not on the flood risk listDN12 1DG: not on the flood risk listDN12 1DJ: not on the flood risk listDN12 1DL: not on the flood risk listDN12 1DN: not on the flood risk listDN12 1DP: not on the flood risk listDN12 1DQ: not on the flood risk listDN12 1DS: not on the flood risk listDN12 1DT: not on the flood risk listDN12 1DU: not on the flood risk listDN12 1DW: not on the flood risk listDN12 1DX: not on the flood risk listDN12 1DY: not on the flood risk listDN12 1DZ: not on the flood risk listDN12 1EA: not on the flood risk listDN12 1EB: not on the flood risk listDN12 1ED: not on the flood risk listDN12 1EE: not on the flood risk listDN12 1EF: not on the flood risk listDN12 1EH: not on the flood risk listDN12 1EJ: not on the flood risk listDN12 1EN: not on the flood risk listDN12 1EP: not on the flood risk listDN12 1EQ: not on the flood risk listDN12 1ER: not on the flood risk listDN12 1ES: not on the flood risk listDN12 1EW: not on the flood risk listDN12 1EX: not on the flood risk listDN12 1EY: not on the flood risk listDN12 1EZ: not on the flood risk listDN12 1FA: not on the flood risk listDN12 1FR: not on the flood risk listDN12 1FS: not on the flood risk listDN12 1HA: not on the flood risk listDN12 1HB: not on the flood risk listDN12 1HD: not on the flood risk listDN12 1HE: not on the flood risk listDN12 1HF: not on the flood risk listDN12 1HH: not on the flood risk listDN12 1HJ: not on the flood risk listDN12 1HL: not on the flood risk listDN12 1HN: not on the flood risk listDN12 1HQ: not on the flood risk listDN12 1HR: not on the flood risk listDN12 1HS: not on the flood risk listDN12 1HT: not on the flood risk listDN12 1HU: not on the flood risk listDN12 1HW: not on the flood risk listDN12 1JA: not on the flood risk listDN12 1JB: not on the flood risk listDN12 1JD: not on the flood risk listDN12 1JE: not on the flood risk listDN12 1JF: not on the flood risk listDN12 1JG: not on the flood risk listDN12 1JH: not on the flood risk listDN12 1JJ: not on the flood risk listDN12 1JN: not on the flood risk listDN12 1JT: not on the flood risk listDN12 1JW: not on the flood risk listDN12 1LE: not on the flood risk listDN12 1LG: not on the flood risk listDN12 1LH: not on the flood risk listDN12 1LJ: not on the flood risk listDN12 1LL: not on the flood risk listDN12 1LP: not on the flood risk listDN12 1LQ: not on the flood risk listDN12 1LR: not on the flood risk listDN12 1LS: not on the flood risk listDN12 1LT: not on the flood risk listDN12 1LX: not on the flood risk listDN12 1LY: not on the flood risk listDN12 1LZ: not on the flood risk listDN12 1NA: not on the flood risk listDN12 1NB: not on the flood risk listDN12 1ND: not on the flood risk listDN12 1NE: not on the flood risk listDN12 1NF: not on the flood risk listDN12 1NG: not on the flood risk listDN12 1NH: not on the flood risk listDN12 1NL: not on the flood risk listDN12 1NN: not on the flood risk listDN12 1NP: not on the flood risk listDN12 1NQ: not on the flood risk listDN12 1NS: not on the flood risk listDN12 1NW: not on the flood risk listDN12 1PD: not on the flood risk listDN12 1PH: not on the flood risk listDN12 1PJ: not on the flood risk listDN12 1PL: not on the flood risk listDN12 1PN: not on the flood risk listDN12 1PP: not on the flood risk listDN12 1PQ: not on the flood risk listDN12 1PR: not on the flood risk listDN12 1PT: not on the flood risk listDN12 1PU: not on the flood risk listDN12 1PW: not on the flood risk listDN12 1PX: not on the flood risk listDN12 1PY: not on the flood risk listDN12 1PZ: not on the flood risk listDN12 1QA: not on the flood risk listDN12 1QB: not on the flood risk listDN12 1QD: not on the flood risk listDN12 1QF: not on the flood risk listDN12 1QG: not on the flood risk listDN12 1QJ: not on the flood risk listDN12 1QL: not on the flood risk listDN12 1QN: not on the flood risk listDN12 1QP: not on the flood risk listDN12 1QQ: not on the flood risk listDN12 1QR: not on the flood risk listDN12 1QS: not on the flood risk listDN12 1QW: not on the flood risk listDN12 1RE: not on the flood risk listDN12 1RH: not on the flood risk listDN12 1RJ: not on the flood risk listDN12 1RL: not on the flood risk listDN12 1RN: not on the flood risk listDN12 1SA: not on the flood risk listDN12 1SD: not on the flood risk listDN12 1SE: not on the flood risk listDN12 1SG: not on the flood risk listDN12 1SH: not on the flood risk listDN12 1SJ: not on the flood risk listDN12 1SP: not on the flood risk listDN12 1SQ: not on the flood risk listDN12 1SS: not on the flood risk listDN12 1ST: not on the flood risk listDN12 1SU: not on the flood risk listDN12 1SX: not on the flood risk listDN12 1SY: not on the flood risk listDN12 2AA: not on the flood risk listDN12 2AB: not on the flood risk listDN12 2AD: not on the flood risk listDN12 2AE: not on the flood risk listDN12 2AF: not on the flood risk listDN12 2AG: not on the flood risk listDN12 2AH: not on the flood risk listDN12 2AJ: not on the flood risk listDN12 2AL: not on the flood risk listDN12 2AN: not on the flood risk listDN12 2AP: not on the flood risk listDN12 2AQ: not on the flood risk listDN12 2AR: not on the flood risk listDN12 2AS: not on the flood risk listDN12 2AU: not on the flood risk listDN12 2AW: not on the flood risk listDN12 2AX: not on the flood risk listDN12 2AY: not on the flood risk listDN12 2AZ: not on the flood risk listDN12 2BA: not on the flood risk listDN12 2BB: not on the flood risk listDN12 2BD: not on the flood risk listDN12 2BE: not on the flood risk listDN12 2BF: not on the flood risk listDN12 2BG: not on the flood risk listDN12 2BH: not on the flood risk listDN12 2BJ: not on the flood risk listDN12 2BL: not on the flood risk listDN12 2BN: not on the flood risk listDN12 2BP: not on the flood risk listDN12 2BQ: not on the flood risk listDN12 2BU: not on the flood risk listDN12 2BW: not on the flood risk listDN12 2BX: not on the flood risk listDN12 2DA: not on the flood risk listDN12 2DB: not on the flood risk listDN12 2DD: not on the flood risk listDN12 2DE: not on the flood risk listDN12 2DF: not on the flood risk listDN12 2DG: not on the flood risk listDN12 2DH: not on the flood risk listDN12 2DJ: not on the flood risk listDN12 2DL: not on the flood risk listDN12 2DN: not on the flood risk listDN12 2DP: not on the flood risk listDN12 2DQ: not on the flood risk listDN12 2DR: not on the flood risk listDN12 2DS: not on the flood risk listDN12 2DT: not on the flood risk listDN12 2DU: not on the flood risk listDN12 2DW: not on the flood risk listDN12 2DX: not on the flood risk listDN12 2ED: not on the flood risk listDN12 2EF: not on the flood risk listDN12 2EG: not on the flood risk listDN12 2EH: not on the flood risk listDN12 2EJ: not on the flood risk listDN12 2EL: not on the flood risk listDN12 2EN: not on the flood risk listDN12 2EQ: not on the flood risk listDN12 2ER: not on the flood risk listDN12 2ES: not on the flood risk listDN12 2ET: not on the flood risk listDN12 2EU: not on the flood risk listDN12 2EW: not on the flood risk listDN12 2EX: not on the flood risk listDN12 2EY: not on the flood risk listDN12 2EZ: not on the flood risk listDN12 2HA: not on the flood risk listDN12 2HB: not on the flood risk listDN12 2HD: not on the flood risk listDN12 2HE: not on the flood risk listDN12 2HF: not on the flood risk listDN12 2HG: not on the flood risk listDN12 2HH: not on the flood risk listDN12 2HJ: not on the flood risk listDN12 2HL: not on the flood risk listDN12 2HN: not on the flood risk listDN12 2HQ: not on the flood risk listDN12 2HR: not on the flood risk listDN12 2HS: not on the flood risk listDN12 2HT: not on the flood risk listDN12 2HW: not on the flood risk listDN12 2JB: not on the flood risk listDN12 2JD: not on the flood risk listDN12 2JE: not on the flood risk listDN12 2JF: not on the flood risk listDN12 2JG: not on the flood risk listDN12 2JH: not on the flood risk listDN12 2JJ: not on the flood risk listDN12 2JN: not on the flood risk listDN12 2JQ: not on the flood risk listDN12 2JR: not on the flood risk listDN12 2JS: not on the flood risk listDN12 2JT: not on the flood risk listDN12 2JU: not on the flood risk listDN12 2JW: not on the flood risk listDN12 2JX: not on the flood risk listDN12 2JY: not on the flood risk listDN12 2JZ: not on the flood risk listDN12 2LB: not on the flood risk listDN12 2LD: not on the flood risk listDN12 2LE: not on the flood risk listDN12 2LF: not on the flood risk listDN12 2LH: not on the flood risk listDN12 2LJ: not on the flood risk listDN12 2LL: not on the flood risk listDN12 2LN: not on the flood risk listDN12 2LQ: not on the flood risk listDN12 2LY: not on the flood risk listDN12 2NA: not on the flood risk listDN12 2ND: not on the flood risk listDN12 2NE: not on the flood risk listDN12 2NF: not on the flood risk listDN12 2NG: not on the flood risk listDN12 2NH: not on the flood risk listDN12 2NJ: not on the flood risk listDN12 2NN: not on the flood risk listDN12 2NP: not on the flood risk listDN12 2NQ: not on the flood risk listDN12 2NR: not on the flood risk listDN12 2NS: not on the flood risk listDN12 2NT: not on the flood risk listDN12 2NU: not on the flood risk listDN12 2NW: not on the flood risk listDN12 2NY: not on the flood risk listDN12 2NZ: not on the flood risk listDN12 2PA: not on the flood risk listDN12 2PB: not on the flood risk listDN12 3AF: not on the flood risk listDN12 3AG: not on the flood risk listDN12 3AH: not on the flood risk listDN12 3AJ: not on the flood risk listDN12 3AL: not on the flood risk listDN12 3AQ: not on the flood risk listDN12 3AR: not on the flood risk listDN12 3AT: not on the flood risk listDN12 3AU: not on the flood risk listDN12 3AW: not on the flood risk listDN12 3AX: not on the flood risk listDN12 3AY: not on the flood risk listDN12 3AZ: not on the flood risk listDN12 3BA: not on the flood risk listDN12 3BB: not on the flood risk listDN12 3BD: not on the flood risk listDN12 3BF: not on the flood risk listDN12 3BG: not on the flood risk listDN12 3BH: not on the flood risk listDN12 3BJ: not on the flood risk listDN12 3BL: not on the flood risk listDN12 3BN: not on the flood risk listDN12 3BP: not on the flood risk listDN12 3BQ: not on the flood risk listDN12 3BS: not on the flood risk listDN12 3BT: not on the flood risk listDN12 3BU: not on the flood risk listDN12 3BW: not on the flood risk listDN12 3BX: not on the flood risk listDN12 3BY: not on the flood risk listDN12 3BZ: not on the flood risk listDN12 3DB: not on the flood risk listDN12 3DD: not on the flood risk listDN12 3DE: not on the flood risk listDN12 3DF: not on the flood risk listDN12 3DG: not on the flood risk listDN12 3DH: not on the flood risk listDN12 3DJ: not on the flood risk listDN12 3DL: not on the flood risk listDN12 3DP: not on the flood risk listDN12 3DQ: not on the flood risk listDN12 3DR: not on the flood risk listDN12 3DS: not on the flood risk listDN12 3DT: not on the flood risk listDN12 3DU: not on the flood risk listDN12 3DW: not on the flood risk listDN12 3EA: not on the flood risk listDN12 3EB: not on the flood risk listDN12 3EJ: not on the flood risk listDN12 3EL: not on the flood risk listDN12 3EP: not on the flood risk listDN12 3ER: not on the flood risk listDN12 3FA: not on the flood risk listDN12 3FD: not on the flood risk listDN12 3GF: not on the flood risk listDN12 3GZ: not on the flood risk listDN12 3HD: not on the flood risk listDN12 3HF: not on the flood risk listDN12 3HG: not on the flood risk listDN12 3HH: not on the flood risk listDN12 3HL: not on the flood risk listDN12 3HP: not on the flood risk listDN12 3HQ: not on the flood risk listDN12 3HS: not on the flood risk listDN12 3HT: not on the flood risk listDN12 3HU: not on the flood risk listDN12 3HW: not on the flood risk listDN12 3HX: not on the flood risk listDN12 3HY: not on the flood risk listDN12 3HZ: not on the flood risk listDN12 3JA: not on the flood risk listDN12 3JB: not on the flood risk listDN12 3JD: not on the flood risk listDN12 3JH: not on the flood risk listDN12 3JL: not on the flood risk listDN12 3JN: not on the flood risk listDN12 3JP: not on the flood risk listDN12 3JR: not on the flood risk listDN12 3JS: not on the flood risk listDN12 3JT: not on the flood risk listDN12 3JU: not on the flood risk listDN12 3JW: not on the flood risk listDN12 3JX: not on the flood risk listDN12 3JY: not on the flood risk listDN12 3JZ: not on the flood risk listDN12 3LA: not on the flood risk listDN12 3LB: not on the flood risk listDN12 3LD: not on the flood risk listDN12 3LE: not on the flood risk listDN12 3LF: not on the flood risk listDN12 3LG: not on the flood risk listDN12 3LH: not on the flood risk listDN12 3LQ: not on the flood risk listDN12 3LR: not on the flood risk listDN12 3LT: not on the flood risk listDN12 3LU: not on the flood risk listDN12 3LX: not on the flood risk listDN12 3LY: not on the flood risk listDN12 3LZ: not on the flood risk listDN12 3NB: not on the flood risk listDN12 3ND: not on the flood risk listDN12 3NE: not on the flood risk listDN12 3NH: not on the flood risk listDN12 3NJ: not on the flood risk listDN12 3NL: not on the flood risk listDN12 3NP: not on the flood risk listDN12 3NS: not on the flood risk listDN12 3NT: not on the flood risk listDN12 3NU: not on the flood risk listDN12 3NW: not on the flood risk listDN12 3NX: not on the flood risk listDN12 3NY: not on the flood risk listDN12 3PA: not on the flood risk listDN12 3PB: not on the flood risk listDN12 3PD: not on the flood risk listDN12 3PE: not on the flood risk listDN12 3PF: not on the flood risk listDN12 3PH: not on the flood risk listDN12 3PJ: not on the flood risk listDN12 3PL: not on the flood risk listDN12 3PN: not on the flood risk listDN12 3PP: not on the flood risk listDN12 3PQ: not on the flood risk listDN12 3PR: not on the flood risk listDN12 3PS: not on the flood risk listDN12 3PT: not on the flood risk listDN12 3PU: not on the flood risk listDN12 3PX: not on the flood risk listDN12 3PY: not on the flood risk listDN12 3PZ: not on the flood risk listDN12 3QB: not on the flood risk listDN12 3QD: not on the flood risk listDN12 3QN: not on the flood risk listDN12 4AD: not on the flood risk listDN12 4AF: not on the flood risk listDN12 4AG: not on the flood risk listDN12 4AH: not on the flood risk listDN12 4AL: not on the flood risk listDN12 4AN: not on the flood risk listDN12 4AP: not on the flood risk listDN12 4AQ: not on the flood risk listDN12 4AS: not on the flood risk listDN12 4AT: not on the flood risk listDN12 4AU: not on the flood risk listDN12 4AW: not on the flood risk listDN12 4AY: not on the flood risk listDN12 4BB: not on the flood risk listDN12 4BD: not on the flood risk listDN12 4BE: not on the flood risk listDN12 4BF: not on the flood risk listDN12 4BG: not on the flood risk listDN12 4BU: not on the flood risk listDN12 4BX: not on the flood risk listDN12 4BZ: not on the flood risk listDN12 4DA: not on the flood risk listDN12 4DB: not on the flood risk listDN12 4DD: not on the flood risk listDN12 4DE: not on the flood risk listDN12 4DG: not on the flood risk listDN12 4DH: not on the flood risk listDN12 4EA: not on the flood risk listDN12 4ED: not on the flood risk listDN12 4EE: not on the flood risk listDN12 4EF: not on the flood risk listDN12 4EG: not on the flood risk listDN12 4EL: not on the flood risk listDN12 4EN: not on the flood risk listDN12 4EP: not on the flood risk listDN12 4ER: not on the flood risk listDN12 4ES: not on the flood risk listDN12 4HA: not on the flood risk listDN12 4HB: not on the flood risk listDN12 4HG: not on the flood risk listDN12 4HH: not on the flood risk listDN12 4HJ: not on the flood risk listDN12 4HL: not on the flood risk listDN12 4HQ: not on the flood risk listDN12 4HR: not on the flood risk listDN12 4HT: not on the flood risk listDN12 4HZ: not on the flood risk listDN12 4JA: not on the flood risk listDN12 4JB: not on the flood risk listDN12 4JD: not on the flood risk listDN12 4JE: not on the flood risk listDN12 4JG: not on the flood risk listDN12 4JJ: not on the flood risk listDN12 4JL: not on the flood risk listDN12 4JQ: not on the flood risk listDN12 4JU: not on the flood risk listDN12 4JX: not on the flood risk listDN12 4JZ: not on the flood risk listDN12 4LD: not on the flood risk listDN12 4LE: not on the flood risk listDN12 4LF: not on the flood risk listDN12 4LG: not on the flood risk listDN12 4LH: not on the flood risk listDN12 4LJ: not on the flood risk listDN12 4LP: not on the flood risk listDN12 4LQ: not on the flood risk listDN12 4LR: not on the flood risk listDN12 4LS: not on the flood risk listDN12 4LU: not on the flood risk listDN12 4LX: not on the flood risk listDN12 4LY: not on the flood risk listDN12 4NA: not on the flood risk listDN12 4NB: not on the flood risk listDN12 4ND: not on the flood risk listDN12 4NE: not on the flood risk listDN12 4NF: not on the flood risk listDN12 4NG: not on the flood risk listDN12 4SA: not on the flood risk listDN12 4SB: not on the flood risk listDN12 4TA: not on the flood risk listDN12 4TB: not on the flood risk listDN12 4TD: not on the flood risk listDN12 4TE: not on the flood risk listDN12 4TF: not on the flood risk listDN12 4TG: not on the flood risk listDN12 4TH: not on the flood risk listDN12 4TJ: not on the flood risk listDN12 4TL: not on the flood risk listDN12 4TN: not on the flood risk listDN12 4TP: not on the flood risk listDN12 4TQ: not on the flood risk listDN12 4TR: not on the flood risk listDN12 4TS: not on the flood risk listDN12 4TT: not on the flood risk listDN12 4TU: not on the flood risk listDN12 4TX: not on the flood risk listDN12 4TY: not on the flood risk listDN12 4TZ: not on the flood risk listDN12 4UA: not on the flood risk listDN12 4UB: not on the flood risk listDN12 4UD: not on the flood risk listDN12 4UE: not on the flood risk listDN12 4UF: not on the flood risk listDN12 4UG: not on the flood risk listDN12 4UH: not on the flood risk listDN12 4UJ: not on the flood risk listDN12 4UL: not on the flood risk listDN12 4UN: not on the flood risk listDN12 4UQ: not on the flood risk listDN12 4EH: very low flood risk onlyDN12 2BT: low flood risk at worstDN12 2BZ: low flood risk at worstDN12 2EE: low flood risk at worstDN12 3AE: low flood risk at worstDN12 3GA: low flood risk at worstDN12 3EF: low flood risk at worstDN12 3EH: low flood risk at worstDN12 3GB: low flood risk at worstDN12 4AB: low flood risk at worstDN12 4ET: low flood risk at worstDN12 4HU: low flood risk at worstDN12 4JH: low flood risk at worstDN12 4UW: low flood risk at worstDN12 3AB: medium flood risk at worstDN12 3AD: medium flood risk at worstDN12 3EG: medium flood risk at worstDN12 3EQ: medium flood risk at worstDN12 3GE: medium flood risk at worstDN12 3HB: medium flood risk at worstDN12 2AT: high flood riskDN12 2BY: high flood riskDN12 3EE: high flood riskDN12 3EN: high flood riskDN12 3ES: high flood riskDN12 3HA: high flood riskDN12 4LB: high flood risk ConisbroughWarmsworthDenaby Main 5 postcodes at high or medium risk, outlined: this goes to DN12 3EN, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in DN12, by flood risk Of the 630 postcodes in DN12 that ONS places, 7 have a home or business at high risk, 6 are at medium risk at worst, 13 are at low risk at worst, 1 are at very low risk only and 603 are not on the Environment Agency's at-risk list. One group of postcodes at high or medium risk is outlined: 5 postcodes at high or medium risk. Places named: Conisbrough, Warmsworth. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2 km. M18 ConisbroughWarmsworth 5 postcodes at high or medium risk, outlined: this goes to DN12 3EN, the one with most homes and businesses at high risk5 postcodes at high or medium risk
  • A home or business at high risk: 7
  • At medium risk at worst: 6
  • At low risk at worst: 13
  • At very low risk only: 1
  • Not on the at-risk list: 603
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 630 postcodes in DN12 that ONS places, 7 have a home or business at high risk, 6 are at medium risk at worst, 13 are at low risk at worst, 1 are at very low risk only and 603 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 53.4826, longitude -1.2239. 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.

DN12 3EN13 at high riskDN12 3ES7 at high riskDN12 4LB6 at high riskDN12 2AT2 at high riskDN12 3HA2 at high riskDN12 2BY1 at high riskDN12 3EE1 at high risk

Where the postcodes at high or medium risk lie together

  • 5 postcodes at high or medium risk, outlined on the map. DN12 3EN, is the one with most homes and businesses at high risk.

What broadband can you get in DN12?

Ofcom reports on 625 of the 630 postcodes in DN12. At 550 of them every home and business can get gigabit broadband.

Postcodes where every home can get gigabit550 of 625
Postcodes where every home can get superfast601 of 625

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 DN12 at risk of flooding?

27 of the 630 postcodes in DN12 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 61 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 27 of 630 postcodes High: 32Medium: 29Low: 94Very low: 6

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 DN12?

Homes in DN12 sold for a typical £146,500 in the 12 months to August 2026, across 200 sales, up 4.6% on the 12 months before, HM Land Registry's figures show.

£146,500 typical price, the 12 months to August 2026
12 months to August 2025
£140,000
12 months to August 2026
£146,500

▲ up 4.6% on the 12 months before

Detached£247,500 27 sales
Semi-detached£150,000 108 sales
Terraced£117,500 62 sales
Flat or maisonette 3 sales, too few to price

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 DN12

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

DN12 1183 postcodesDN12 2143 postcodesDN12 3176 postcodesDN12 4128 postcodes
UK postcode format explained

Places in DN12

Towns and villages with postcodes in DN12, and how many each has here.

Conisbrough postcodes,296Warmsworth postcodes,172Denaby Main postcodes,122

Who covers DN12

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

  • Rawmarsh and Conisbrough630

Police force areas

  • South Yorkshire630

Next to DN12

DN11 postcode district DN14 postcode district All DN districts Conisbrough postcodes

"Next to" is by number: the districts before and after DN12 in the DN area.

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