SG12 postcode district: Ware and around, Hertfordshire

SG12 is a postcode district in Hertfordshire, with 939 postcodes in use in 5 sectors. It has postcodes in Ware, Stanstead Abbotts and Hoddesdon. Its council is East Hertfordshire.

Postcodes in use
939
Sectors
5
Council
East Hertfordshire
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 SG12, by flood risk

Map of every postcode in SG12, by flood risk Of the 939 postcodes in SG12 that ONS places, 77 have a home or business at high risk, 17 are at medium risk at worst, 97 are at low risk at worst, 1 are at very low risk only and 747 are not on the Environment Agency's at-risk list. 6 groups of postcodes at high or medium risk are outlined: 22 postcodes at high or medium risk; 10 postcodes at high or medium risk; 8 postcodes at high or medium risk; 8 postcodes at high or medium risk; 6 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Ware, Hertford, Stanstead Abbotts, Hertford Heath. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A119A10A602A120 SG12 0AG: not on the flood risk listSG12 0AN: not on the flood risk listSG12 0AP: not on the flood risk listSG12 0AR: not on the flood risk listSG12 0AT: not on the flood risk listSG12 0AU: not on the flood risk listSG12 0AW: not on the flood risk listSG12 0AX: not on the flood risk listSG12 0AZ: not on the flood risk listSG12 0BA: not on the flood risk listSG12 0BB: not on the flood risk listSG12 0BD: not on the flood risk listSG12 0BE: not on the flood risk listSG12 0BG: not on the flood risk listSG12 0BH: not on the flood risk listSG12 0BN: not on the flood risk listSG12 0BQ: not on the flood risk listSG12 0BU: not on the flood risk listSG12 0BX: not on the flood risk listSG12 0DB: not on the flood risk listSG12 0DJ: not on the flood risk listSG12 0DN: not on the flood risk listSG12 0DP: not on the flood risk listSG12 0DQ: not on the flood risk listSG12 0DR: not on the flood risk listSG12 0DS: not on the flood risk listSG12 0DT: not on the flood risk listSG12 0DU: not on the flood risk listSG12 0DX: not on the flood risk listSG12 0DY: not on the flood risk listSG12 0DZ: not on the flood risk listSG12 0EA: not on the flood risk listSG12 0EB: not on the flood risk listSG12 0EF: not on the flood risk listSG12 0EG: not on the flood risk listSG12 0EH: not on the flood risk listSG12 0EJ: not on the flood risk listSG12 0EL: not on the flood risk listSG12 0EN: not on the flood risk listSG12 0EP: not on the flood risk listSG12 0EQ: not on the flood risk listSG12 0ER: not on the flood risk listSG12 0EU: not on the flood risk listSG12 0EW: not on the flood risk listSG12 0EX: not on the flood risk listSG12 0EY: not on the flood risk listSG12 0EZ: not on the flood risk listSG12 0FF: not on the flood risk listSG12 0FG: not on the flood risk listSG12 0GB: not on the flood risk listSG12 0GD: not on the flood risk listSG12 0GE: not on the flood risk listSG12 0GG: not on the flood risk listSG12 0GQ: not on the flood risk listSG12 0GX: not on the flood risk listSG12 0HA: not on the flood risk listSG12 0HB: not on the flood risk listSG12 0HD: not on the flood risk listSG12 0HE: not on the flood risk listSG12 0HF: not on the flood risk listSG12 0HG: not on the flood risk listSG12 0HH: not on the flood risk listSG12 0HJ: not on the flood risk listSG12 0HL: not on the flood risk listSG12 0HN: not on the flood risk listSG12 0HP: not on the flood risk listSG12 0HQ: not on the flood risk listSG12 0HS: not on the flood risk listSG12 0HT: not on the flood risk listSG12 0HW: not on the flood risk listSG12 0HZ: not on the flood risk listSG12 0JE: not on the flood risk listSG12 0JF: not on the flood risk listSG12 0JH: not on the flood risk listSG12 0JJ: not on the flood risk listSG12 0JL: not on the flood risk listSG12 0JN: not on the flood risk listSG12 0JQ: not on the flood risk listSG12 0JR: not on the flood risk listSG12 0JS: not on the flood risk listSG12 0JT: not on the flood risk listSG12 0JU: not on the flood risk listSG12 0JX: not on the flood risk listSG12 0JY: not on the flood risk listSG12 0JZ: not on the flood risk listSG12 0LA: not on the flood risk listSG12 0LB: not on the flood risk listSG12 0LD: not on the flood risk listSG12 0LP: not on the flood risk listSG12 0LR: not on the flood risk listSG12 0LU: not on the flood risk listSG12 0LW: not on the flood risk listSG12 0LX: not on the flood risk listSG12 0LY: not on the flood risk listSG12 0LZ: not on the flood risk listSG12 0ND: not on the flood risk listSG12 0NE: not on the flood risk listSG12 0NF: not on the flood risk listSG12 0NG: not on the flood risk listSG12 0NL: not on the flood risk listSG12 0NR: not on the flood risk listSG12 0NS: not on the flood risk listSG12 0NT: not on the flood risk listSG12 0NX: not on the flood risk listSG12 0NY: not on the flood risk listSG12 0NZ: not on the flood risk listSG12 0PB: not on the flood risk listSG12 0PD: not on the flood risk listSG12 0PE: not on the flood risk listSG12 0PF: not on the flood risk listSG12 0PG: not on the flood risk listSG12 0PH: not on the flood risk listSG12 0PJ: not on the flood risk listSG12 0PL: not on the flood risk listSG12 0PN: not on the flood risk listSG12 0PP: not on the flood risk listSG12 0PQ: not on the flood risk listSG12 0PR: not on the flood risk listSG12 0PT: not on the flood risk listSG12 0QA: not on the flood risk listSG12 0QD: not on the flood risk listSG12 0QE: not on the flood risk listSG12 0QF: not on the flood risk listSG12 0QG: not on the flood risk listSG12 0QH: not on the flood risk listSG12 0QL: not on the flood risk listSG12 0QN: not on the flood risk listSG12 0QR: not on the flood risk listSG12 0QS: not on the flood risk listSG12 0QX: not on the flood risk listSG12 0RF: not on the flood risk listSG12 0RG: not on the flood risk listSG12 0RH: not on the flood risk listSG12 0RJ: not on the flood risk listSG12 0RL: not on the flood risk listSG12 0RN: not on the flood risk listSG12 0RP: not on the flood risk listSG12 0RR: not on the flood risk listSG12 0RT: not on the flood risk listSG12 0RW: not on the flood risk listSG12 0RX: not on the flood risk listSG12 0RZ: not on the flood risk listSG12 0SB: not on the flood risk listSG12 0SD: not on the flood risk listSG12 0SG: not on the flood risk listSG12 0SJ: not on the flood risk listSG12 0SL: not on the flood risk listSG12 0SN: not on the flood risk listSG12 0SP: not on the flood risk listSG12 0SR: not on the flood risk listSG12 0SS: not on the flood risk listSG12 0TB: not on the flood risk listSG12 0TF: not on the flood risk listSG12 0TR: not on the flood risk listSG12 0TS: not on the flood risk listSG12 0TU: not on the flood risk listSG12 0TX: not on the flood risk listSG12 0TY: not on the flood risk listSG12 0UB: not on the flood risk listSG12 0UD: not on the flood risk listSG12 0UF: not on the flood risk listSG12 0UG: not on the flood risk listSG12 0UQ: not on the flood risk listSG12 0XA: not on the flood risk listSG12 0XE: not on the flood risk listSG12 0XF: not on the flood risk listSG12 0XG: not on the flood risk listSG12 0XH: not on the flood risk listSG12 0XJ: not on the flood risk listSG12 0XL: not on the flood risk listSG12 0XP: not on the flood risk listSG12 0XR: not on the flood risk listSG12 0XX: not on the flood risk listSG12 0XY: not on the flood risk listSG12 7AE: not on the flood risk listSG12 7AP: not on the flood risk listSG12 7AT: not on the flood risk listSG12 7AU: not on the flood risk listSG12 7AX: not on the flood risk listSG12 7AY: not on the flood risk listSG12 7BA: not on the flood risk listSG12 7BB: not on the flood risk listSG12 7BE: not on the flood risk listSG12 7BH: not on the flood risk listSG12 7BN: not on the flood risk listSG12 7BS: not on the flood risk listSG12 7BT: not on the flood risk listSG12 7BU: not on the flood risk listSG12 7BX: not on the flood risk listSG12 7BY: not on the flood risk listSG12 7BZ: not on the flood risk listSG12 7DB: not on the flood risk listSG12 7DD: not on the flood risk listSG12 7DG: not on the flood risk listSG12 7DH: not on the flood risk listSG12 7DJ: not on the flood risk listSG12 7DL: not on the flood risk listSG12 7DN: not on the flood risk listSG12 7DP: not on the flood risk listSG12 7DR: not on the flood risk listSG12 7DS: not on the flood risk listSG12 7DT: not on the flood risk listSG12 7DU: not on the flood risk listSG12 7DX: not on the flood risk listSG12 7DY: not on the flood risk listSG12 7EH: not on the flood risk listSG12 7EJ: not on the flood risk listSG12 7EL: not on the flood risk listSG12 7EN: not on the flood risk listSG12 7EP: not on the flood risk listSG12 7ES: not on the flood risk listSG12 7ET: not on the flood risk listSG12 7EU: not on the flood risk listSG12 7EW: not on the flood risk listSG12 7EX: not on the flood risk listSG12 7FA: not on the flood risk listSG12 7FB: not on the flood risk listSG12 7FD: not on the flood risk listSG12 7FH: not on the flood risk listSG12 7HA: not on the flood risk listSG12 7HB: not on the flood risk listSG12 7HD: not on the flood risk listSG12 7HH: not on the flood risk listSG12 7HJ: not on the flood risk listSG12 7HN: not on the flood risk listSG12 7HR: not on the flood risk listSG12 7HS: not on the flood risk listSG12 7HT: not on the flood risk listSG12 7HY: not on the flood risk listSG12 7HZ: not on the flood risk listSG12 7JA: not on the flood risk listSG12 7JE: not on the flood risk listSG12 7JF: not on the flood risk listSG12 7JG: not on the flood risk listSG12 7JH: not on the flood risk listSG12 7JJ: not on the flood risk listSG12 7JN: not on the flood risk listSG12 7JR: not on the flood risk listSG12 7JT: not on the flood risk listSG12 7JX: not on the flood risk listSG12 7LD: not on the flood risk listSG12 7LE: not on the flood risk listSG12 7LF: not on the flood risk listSG12 7LH: not on the flood risk listSG12 7LJ: not on the flood risk listSG12 7LL: not on the flood risk listSG12 7LP: not on the flood risk listSG12 7LQ: not on the flood risk listSG12 7LR: not on the flood risk listSG12 7LS: not on the flood risk listSG12 7LT: not on the flood risk listSG12 7LW: not on the flood risk listSG12 7LX: not on the flood risk listSG12 7NB: not on the flood risk listSG12 7NE: not on the flood risk listSG12 7NF: not on the flood risk listSG12 7NJ: not on the flood risk listSG12 7NL: not on the flood risk listSG12 7NN: not on the flood risk listSG12 7NP: not on the flood risk listSG12 7NQ: not on the flood risk listSG12 7NR: not on the flood risk listSG12 7NS: not on the flood risk listSG12 7NW: not on the flood risk listSG12 7NZ: not on the flood risk listSG12 7PB: not on the flood risk listSG12 7PE: not on the flood risk listSG12 7PG: not on the flood risk listSG12 7PR: not on the flood risk listSG12 7PU: not on the flood risk listSG12 7PW: not on the flood risk listSG12 7PX: not on the flood risk listSG12 7PY: not on the flood risk listSG12 7PZ: not on the flood risk listSG12 7QA: not on the flood risk listSG12 7QB: not on the flood risk listSG12 7QE: not on the flood risk listSG12 7QF: not on the flood risk listSG12 7QG: not on the flood risk listSG12 7QH: not on the flood risk listSG12 7QJ: not on the flood risk listSG12 7QL: not on the flood risk listSG12 7QP: not on the flood risk listSG12 7QR: not on the flood risk listSG12 7QS: not on the flood risk listSG12 7QT: not on the flood risk listSG12 7QU: not on the flood risk listSG12 7QW: not on the flood risk listSG12 7QZ: not on the flood risk listSG12 7RA: not on the flood risk listSG12 7RB: not on the flood risk listSG12 7RD: not on the flood risk listSG12 7RE: not on the flood risk listSG12 7RG: not on the flood risk listSG12 7RQ: not on the flood risk listSG12 7RR: not on the flood risk listSG12 7RS: not on the flood risk listSG12 7RT: not on the flood risk listSG12 7RU: not on the flood risk listSG12 7RY: not on the flood risk listSG12 7RZ: not on the flood risk listSG12 7SD: not on the flood risk listSG12 7SG: not on the flood risk listSG12 7SH: not on the flood risk listSG12 7SJ: not on the flood risk listSG12 7SL: not on the flood risk listSG12 7SN: not on the flood risk listSG12 7SP: not on the flood risk listSG12 7SR: not on the flood risk listSG12 7SW: not on the flood risk listSG12 7XA: not on the flood risk listSG12 8AN: not on the flood risk listSG12 8AR: not on the flood risk listSG12 8AY: not on the flood risk listSG12 8AZ: not on the flood risk listSG12 8BA: not on the flood risk listSG12 8BB: not on the flood risk listSG12 8BD: not on the flood risk listSG12 8BE: not on the flood risk listSG12 8BG: not on the flood risk listSG12 8BH: not on the flood risk listSG12 8BJ: not on the flood risk listSG12 8BS: not on the flood risk listSG12 8BW: not on the flood risk listSG12 8BX: not on the flood risk listSG12 8DA: not on the flood risk listSG12 8DB: not on the flood risk listSG12 8DH: not on the flood risk listSG12 8DL: not on the flood risk listSG12 8ED: not on the flood risk listSG12 8EG: not on the flood risk listSG12 8EH: not on the flood risk listSG12 8EN: not on the flood risk listSG12 8EP: not on the flood risk listSG12 8FA: not on the flood risk listSG12 8FD: not on the flood risk listSG12 8FE: not on the flood risk listSG12 8FF: not on the flood risk listSG12 8FG: not on the flood risk listSG12 8FH: not on the flood risk listSG12 8FJ: not on the flood risk listSG12 8FL: not on the flood risk listSG12 8FP: not on the flood risk listSG12 8FQ: not on the flood risk listSG12 8FR: not on the flood risk listSG12 8HB: not on the flood risk listSG12 8HR: not on the flood risk listSG12 8HT: not on the flood risk listSG12 8HU: not on the flood risk listSG12 8HX: not on the flood risk listSG12 8JB: not on the flood risk listSG12 8JD: not on the flood risk listSG12 8JE: not on the flood risk listSG12 8JF: not on the flood risk listSG12 8JP: not on the flood risk listSG12 8JR: not on the flood risk listSG12 8JT: not on the flood risk listSG12 8JU: not on the flood risk listSG12 8JZ: not on the flood risk listSG12 8LA: not on the flood risk listSG12 8LB: not on the flood risk listSG12 8LE: not on the flood risk listSG12 8LF: not on the flood risk listSG12 8LG: not on the flood risk listSG12 8LH: not on the flood risk listSG12 8LJ: not on the flood risk listSG12 8LP: not on the flood risk listSG12 8LR: not on the flood risk listSG12 8LS: not on the flood risk listSG12 8LT: not on the flood risk listSG12 8LW: not on the flood risk listSG12 8LX: not on the flood risk listSG12 8LY: not on the flood risk listSG12 8NB: not on the flood risk listSG12 8NH: not on the flood risk listSG12 8NJ: not on the flood risk listSG12 8NL: not on the flood risk listSG12 8NN: not on the flood risk listSG12 8NQ: not on the flood risk listSG12 8NR: not on the flood risk listSG12 8NS: not on the flood risk listSG12 8NU: not on the flood risk listSG12 8NW: not on the flood risk listSG12 8NZ: not on the flood risk listSG12 8PB: not on the flood risk listSG12 8PD: not on the flood risk listSG12 8PE: not on the flood risk listSG12 8PG: not on the flood risk listSG12 8PH: not on the flood risk listSG12 8PL: not on the flood risk listSG12 8PN: not on the flood risk listSG12 8PP: not on the flood risk listSG12 8PS: not on the flood risk listSG12 8PT: not on the flood risk listSG12 8PU: not on the flood risk listSG12 8PW: not on the flood risk listSG12 8PZ: not on the flood risk listSG12 8QB: not on the flood risk listSG12 8QD: not on the flood risk listSG12 8QE: not on the flood risk listSG12 8QF: not on the flood risk listSG12 8QH: not on the flood risk listSG12 8QQ: not on the flood risk listSG12 8RA: not on the flood risk listSG12 8RB: not on the flood risk listSG12 8RE: not on the flood risk listSG12 8RH: not on the flood risk listSG12 8RL: not on the flood risk listSG12 8RN: not on the flood risk listSG12 8RP: not on the flood risk listSG12 8RQ: not on the flood risk listSG12 8RS: not on the flood risk listSG12 8RT: not on the flood risk listSG12 8RW: not on the flood risk listSG12 8RZ: not on the flood risk listSG12 8SA: not on the flood risk listSG12 8SB: not on the flood risk listSG12 8SE: not on the flood risk listSG12 8SH: not on the flood risk listSG12 8SJ: not on the flood risk listSG12 8SL: not on the flood risk listSG12 8ST: not on the flood risk listSG12 8SZ: not on the flood risk listSG12 8TA: not on the flood risk listSG12 8TB: not on the flood risk listSG12 8TD: not on the flood risk listSG12 8TG: not on the flood risk listSG12 8TH: not on the flood risk listSG12 8TJ: not on the flood risk listSG12 8TL: not on the flood risk listSG12 9AX: not on the flood risk listSG12 9BE: not on the flood risk listSG12 9BT: not on the flood risk listSG12 9DS: not on the flood risk listSG12 9DT: not on the flood risk listSG12 9EG: not on the flood risk listSG12 9EH: not on the flood risk listSG12 9EY: not on the flood risk listSG12 9FL: not on the flood risk listSG12 9FR: not on the flood risk listSG12 9FS: not on the flood risk listSG12 9FX: not on the flood risk listSG12 9FY: not on the flood risk listSG12 9HF: not on the flood risk listSG12 9JF: not on the flood risk listSG12 9JG: not on the flood risk listSG12 9JJ: not on the flood risk listSG12 9JL: not on the flood risk listSG12 9JN: not on the flood risk listSG12 9JP: not on the flood risk listSG12 9JQ: not on the flood risk listSG12 9JW: not on the flood risk listSG12 9JX: not on the flood risk listSG12 9JY: not on the flood risk listSG12 9JZ: not on the flood risk listSG12 9LA: not on the flood risk listSG12 9LE: not on the flood risk listSG12 9LF: not on the flood risk listSG12 9LQ: not on the flood risk listSG12 9LS: not on the flood risk listSG12 9LX: not on the flood risk listSG12 9LY: not on the flood risk listSG12 9NA: not on the flood risk listSG12 9NB: not on the flood risk listSG12 9NE: not on the flood risk listSG12 9NH: not on the flood risk listSG12 9NL: not on the flood risk listSG12 9NN: not on the flood risk listSG12 9NP: not on the flood risk listSG12 9NQ: not on the flood risk listSG12 9NR: not on the flood risk listSG12 9NU: not on the flood risk listSG12 9NX: not on the flood risk listSG12 9NY: not on the flood risk listSG12 9PA: not on the flood risk listSG12 9PB: not on the flood risk listSG12 9PD: not on the flood risk listSG12 9PE: not on the flood risk listSG12 9PQ: not on the flood risk listSG12 9QT: not on the flood risk listSG12 9QX: not on the flood risk listSG12 9QY: not on the flood risk listSG12 9QZ: not on the flood risk listSG12 9RA: not on the flood risk listSG12 9RB: not on the flood risk listSG12 9RD: not on the flood risk listSG12 9RF: not on the flood risk listSG12 9RG: not on the flood risk listSG12 9RH: not on the flood risk listSG12 9RJ: not on the flood risk listSG12 9RL: not on the flood risk listSG12 9RP: not on the flood risk listSG12 9RR: not on the flood risk listSG12 9RS: not on the flood risk listSG12 9RT: not on the flood risk listSG12 9RU: not on the flood risk listSG12 9RW: not on the flood risk listSG12 9RX: not on the flood risk listSG12 9RY: not on the flood risk listSG12 9RZ: not on the flood risk listSG12 9SD: not on the flood risk listSG12 9SE: not on the flood risk listSG12 9SG: not on the flood risk listSG12 9SH: not on the flood risk listSG12 9SJ: not on the flood risk listSG12 9SN: not on the flood risk listSG12 9SP: not on the flood risk listSG12 9SQ: not on the flood risk listSG12 9SU: not on the flood risk listSG12 9SW: not on the flood risk listSG12 9SZ: not on the flood risk listSG12 9TA: not on the flood risk listSG12 9TE: not on the flood risk listSG12 9TF: not on the flood risk listSG12 9TH: not on the flood risk listSG12 9TJ: not on the flood risk listSG12 9TN: not on the flood risk listSG12 9XB: not on the flood risk listSG12 9QS: very low flood risk onlySG12 0GP: low flood risk at worstSG12 0BS: low flood risk at worstSG12 0ES: low flood risk at worstSG12 9WR: low flood risk at worstSG12 0JP: low flood risk at worstSG12 0LH: low flood risk at worstSG12 0LL: low flood risk at worstSG12 0NU: low flood risk at worstSG12 0PY: low flood risk at worstSG12 0PZ: low flood risk at worstSG12 0SY: low flood risk at worstSG12 0SZ: low flood risk at worstSG12 0TA: low flood risk at worstSG12 0TE: low flood risk at worstSG12 0TH: low flood risk at worstSG12 0TN: low flood risk at worstSG12 7AA: low flood risk at worstSG12 7AB: low flood risk at worstSG12 7AG: low flood risk at worstSG12 7AH: low flood risk at worstSG12 7AJ: low flood risk at worstSG12 7AN: low flood risk at worstSG12 7AR: low flood risk at worstSG12 7BP: low flood risk at worstSG12 7EA: low flood risk at worstSG12 7EG: low flood risk at worstSG12 7QN: low flood risk at worstSG12 7QQ: low flood risk at worstSG12 8AA: low flood risk at worstSG12 8AB: low flood risk at worstSG12 8AD: low flood risk at worstSG12 8AE: low flood risk at worstSG12 8AQ: low flood risk at worstSG12 8AW: low flood risk at worstSG12 8BU: low flood risk at worstSG12 8EE: low flood risk at worstSG12 8HL: low flood risk at worstSG12 8JL: low flood risk at worstSG12 8JW: low flood risk at worstSG12 8JX: low flood risk at worstSG12 8TZ: low flood risk at worstSG12 9AD: low flood risk at worstSG12 9AE: low flood risk at worstSG12 9AL: low flood risk at worstSG12 9AP: low flood risk at worstSG12 9AR: low flood risk at worstSG12 9DD: low flood risk at worstSG12 9FD: low flood risk at worstSG12 9FE: low flood risk at worstSG12 9FH: low flood risk at worstSG12 9FJ: low flood risk at worstSG12 9JE: low flood risk at worstSG12 9LP: low flood risk at worstSG12 9NZ: low flood risk at worstSG12 9PZ: low flood risk at worstSG12 9QB: low flood risk at worstSG12 9QF: low flood risk at worstSG12 9QN: low flood risk at worstSG12 9UN: low flood risk at worstSG12 0AD: medium flood risk at worstSG12 0BL: medium flood risk at worstSG12 0JW: medium flood risk at worstSG12 0LN: medium flood risk at worstSG12 0RA: medium flood risk at worstSG12 0XS: medium flood risk at worstSG12 7RP: medium flood risk at worstSG12 8AS: medium flood risk at worstSG12 8AJ: medium flood risk at worstSG12 8AL: medium flood risk at worstSG12 8AP: medium flood risk at worstSG12 8AT: medium flood risk at worstSG12 9EJ: medium flood risk at worstSG12 9PY: medium flood risk at worstSG12 9FN: medium flood risk at worstSG12 9FP: medium flood risk at worstSG12 0AA: high flood riskSG12 0AQ: high flood riskSG12 0BP: high flood riskSG12 0DA: high flood riskSG12 0DE: high flood riskSG12 0ET: high flood riskSG12 0HU: high flood riskSG12 0JB: high flood riskSG12 0PU: high flood riskSG12 0SQ: high flood riskSG12 0TD: high flood riskSG12 0TZ: high flood riskSG12 0UE: high flood riskSG12 0XT: high flood riskSG12 7AW: high flood riskSG12 7QX: high flood riskSG12 7RH: high flood riskSG12 8AF: high flood riskSG12 8DY: high flood riskSG12 8BY: high flood riskSG12 8BZ: high flood riskSG12 8DE: high flood riskSG12 8DG: high flood riskSG12 8DR: high flood riskSG12 8DX: high flood riskSG12 8DT: high flood riskSG12 8DU: high flood riskSG12 8DW: high flood riskSG12 8DZ: high flood riskSG12 8EB: high flood riskSG12 8EF: high flood riskSG12 8EL: high flood riskSG12 8EQ: high flood riskSG12 8HD: high flood riskSG12 8HQ: high flood riskSG12 8GA: high flood riskSG12 8HA: high flood riskSG12 8HH: high flood riskSG12 8JS: high flood riskSG12 8JY: high flood riskSG12 8LD: high flood riskSG12 8LL: high flood riskSG12 8LN: high flood riskSG12 8LQ: high flood riskSG12 8LZ: high flood riskSG12 8QP: high flood riskSG12 8QT: high flood riskSG12 8SX: high flood riskSG12 8TX: high flood riskSG12 8XH: high flood riskSG12 9DX: high flood riskSG12 9DZ: high flood riskSG12 9FW: high flood riskSG12 9HP: high flood riskSG12 9HT: high flood riskSG12 9HY: high flood riskSG12 9LH: high flood riskSG12 9SS: high flood riskSG12 9SY: high flood riskSG12 9UT: high flood risk WareHertfordStanstead AbbottsHertford Heath 22 postcodes at high or medium risk, outlined: this goes to SG12 8GA, the one with most homes and businesses at high risk22 postcodes at high or medium risk10 postcodes at high or medium risk, outlined: this goes to SG12 9HP, the one with most homes and businesses at high risk10 postcodes at high or medium risk8 postcodes at high or medium risk, outlined: this goes to SG12 9DH, the one with most homes and businesses at high risk8 postcodes at high or medium risk8 postcodes at high or medium risk, outlined: this goes to SG12 8HQ, the one with most homes and businesses at high risk8 postcodes at high or medium risk6 postcodes at high or medium risk, outlined: this goes to SG12 8AF, the one with most homes and businesses at high risk6 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to SG12 7QY, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in SG12, by flood risk Of the 939 postcodes in SG12 that ONS places, 77 have a home or business at high risk, 17 are at medium risk at worst, 97 are at low risk at worst, 1 are at very low risk only and 747 are not on the Environment Agency's at-risk list. 6 groups of postcodes at high or medium risk are outlined: 22 postcodes at high or medium risk; 10 postcodes at high or medium risk; 8 postcodes at high or medium risk; 8 postcodes at high or medium risk; 6 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Ware, Hertford, Stanstead Abbotts, Hertford Heath. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A119A10 WareHertfordStanstead AbbottsHertford Heath
  • A home or business at high risk: 77
  • At medium risk at worst: 17
  • At low risk at worst: 97
  • At very low risk only: 1
  • Not on the at-risk list: 747
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 939 postcodes in SG12 that ONS places, 77 have a home or business at high risk, 17 are at medium risk at worst, 97 are at low risk at worst, 1 are at very low risk only and 747 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 51.8143, longitude -0.0169. 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

77 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.

SG12 8GA72 at high riskSG12 8EL71 at high riskSG12 8XH64 at high riskSG12 8EU47 at high riskSG12 9HP34 at high riskSG12 9FW32 at high riskSG12 9HW31 at high riskSG12 9HT30 at high riskSG12 9DH28 at high riskSG12 0HU25 at high riskSG12 9HX25 at high riskSG12 8HQ23 at high risk

Where the postcodes at high or medium risk lie together

  • 22 postcodes at high or medium risk, outlined on the map. SG12 8GA, is the one with most homes and businesses at high risk.
  • 10 postcodes at high or medium risk, outlined on the map. SG12 9HP, is the one with most homes and businesses at high risk.
  • 8 postcodes at high or medium risk, outlined on the map. SG12 9DH, is the one with most homes and businesses at high risk.
  • 8 postcodes at high or medium risk, outlined on the map. SG12 8HQ, is the one with most homes and businesses at high risk.
  • 6 postcodes at high or medium risk, outlined on the map. SG12 8AF, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. SG12 7QY, is the one with most homes and businesses at high risk.

What broadband can you get in SG12?

Ofcom reports on 909 of the 939 postcodes in SG12. At 651 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit651 of 909
Postcodes where every home can get superfast814 of 909
Postcodes where some cannot get decent broadband1 of 909

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 SG12 at risk of flooding?

192 of the 939 postcodes in SG12 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 1,207 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 192 of 939 postcodes High: 884Medium: 323Low: 1,676Very low: 14

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 SG12?

Homes in SG12 sold for a typical £450,000 in the 12 months to August 2026, across 389 sales, up 5.9% on the 12 months before, HM Land Registry's figures show.

£450,000 typical price, the 12 months to August 2026
12 months to August 2025
£425,000
12 months to August 2026
£450,000

▲ up 5.9% on the 12 months before

Detached£777,500 60 sales
Semi-detached£540,000 107 sales
Terraced£430,000 106 sales
Flat or maisonette£251,000 116 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 SG12

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

SG12 0270 postcodesSG12 420 postcodesSG12 7212 postcodesSG12 8226 postcodesSG12 9211 postcodes
UK postcode format explained

Places in SG12

Towns and villages with postcodes in SG12, and how many each has here.

Ware postcodes,469Stanstead Abbotts postcodes,100Hoddesdon postcodes,8

Who covers SG12

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

  • Hertford and Stortford621
  • Broxbourne183
  • North East Hertfordshire135

Police force areas

  • Hertfordshire939

Next to SG12

SG11 postcode district SG13 postcode district All SG districts Ware postcodes

"Next to" is by number: the districts before and after SG12 in the SG area.

Check a postcode

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