SN11 postcode district: Calne and around, Wiltshire

SN11 is a postcode district in England, with 774 postcodes in use in 4 sectors. It has postcodes in Calne. Its council is Wiltshire.

Postcodes in use
774
Sectors
4
Council
Wiltshire
Places
Calne

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

Every postcode in SN11, by flood risk

Map of every postcode in SN11, by flood risk Of the 774 postcodes in SN11 that ONS places, 15 have a home or business at high risk, 2 are at medium risk at worst, 23 are at low risk at worst and 734 are not on the Environment Agency's at-risk list. Places named: Calne. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A361 SN11 0AA: not on the flood risk listSN11 0AD: not on the flood risk listSN11 0AE: not on the flood risk listSN11 0AF: not on the flood risk listSN11 0AH: not on the flood risk listSN11 0AJ: not on the flood risk listSN11 0AL: not on the flood risk listSN11 0AN: not on the flood risk listSN11 0AR: not on the flood risk listSN11 0AT: not on the flood risk listSN11 0AU: not on the flood risk listSN11 0AZ: not on the flood risk listSN11 0BA: not on the flood risk listSN11 0BB: not on the flood risk listSN11 0BE: not on the flood risk listSN11 0BJ: not on the flood risk listSN11 0BP: not on the flood risk listSN11 0BQ: not on the flood risk listSN11 0BZ: not on the flood risk listSN11 0DB: not on the flood risk listSN11 0DF: not on the flood risk listSN11 0DG: not on the flood risk listSN11 0DJ: not on the flood risk listSN11 0DL: not on the flood risk listSN11 0DN: not on the flood risk listSN11 0DP: not on the flood risk listSN11 0DS: not on the flood risk listSN11 0DT: not on the flood risk listSN11 0DW: not on the flood risk listSN11 0DX: not on the flood risk listSN11 0DZ: not on the flood risk listSN11 0EB: not on the flood risk listSN11 0EE: not on the flood risk listSN11 0EP: not on the flood risk listSN11 0ER: not on the flood risk listSN11 0ES: not on the flood risk listSN11 0ET: not on the flood risk listSN11 0EX: not on the flood risk listSN11 0EZ: not on the flood risk listSN11 0FB: not on the flood risk listSN11 0FD: not on the flood risk listSN11 0FF: not on the flood risk listSN11 0FG: not on the flood risk listSN11 0FH: not on the flood risk listSN11 0FJ: not on the flood risk listSN11 0FL: not on the flood risk listSN11 0FN: not on the flood risk listSN11 0FP: not on the flood risk listSN11 0FQ: not on the flood risk listSN11 0FR: not on the flood risk listSN11 0FU: not on the flood risk listSN11 0FW: not on the flood risk listSN11 0FY: not on the flood risk listSN11 0FZ: not on the flood risk listSN11 0GD: not on the flood risk listSN11 0GF: not on the flood risk listSN11 0GG: not on the flood risk listSN11 0GH: not on the flood risk listSN11 0GJ: not on the flood risk listSN11 0HB: not on the flood risk listSN11 0HH: not on the flood risk listSN11 0HJ: not on the flood risk listSN11 0HL: not on the flood risk listSN11 0HQ: not on the flood risk listSN11 0HY: not on the flood risk listSN11 0HZ: not on the flood risk listSN11 0JF: not on the flood risk listSN11 0JG: not on the flood risk listSN11 0JP: not on the flood risk listSN11 0JW: not on the flood risk listSN11 0JX: not on the flood risk listSN11 0JY: not on the flood risk listSN11 0JZ: not on the flood risk listSN11 0LA: not on the flood risk listSN11 0LB: not on the flood risk listSN11 0LD: not on the flood risk listSN11 0LE: not on the flood risk listSN11 0LF: not on the flood risk listSN11 0LG: not on the flood risk listSN11 0LH: not on the flood risk listSN11 0LN: not on the flood risk listSN11 0LP: not on the flood risk listSN11 0LQ: not on the flood risk listSN11 0LS: not on the flood risk listSN11 0LU: not on the flood risk listSN11 0LX: not on the flood risk listSN11 0LY: not on the flood risk listSN11 0LZ: not on the flood risk listSN11 0NA: not on the flood risk listSN11 0NB: not on the flood risk listSN11 0ND: not on the flood risk listSN11 0NE: not on the flood risk listSN11 0NF: not on the flood risk listSN11 0NG: not on the flood risk listSN11 0NH: not on the flood risk listSN11 0NJ: not on the flood risk listSN11 0NL: not on the flood risk listSN11 0NN: not on the flood risk listSN11 0NP: not on the flood risk listSN11 0NQ: not on the flood risk listSN11 0NS: not on the flood risk listSN11 0NU: not on the flood risk listSN11 0NW: not on the flood risk listSN11 0NX: not on the flood risk listSN11 0NY: not on the flood risk listSN11 0NZ: not on the flood risk listSN11 0PA: not on the flood risk listSN11 0PB: not on the flood risk listSN11 0PD: not on the flood risk listSN11 0PE: not on the flood risk listSN11 0PF: not on the flood risk listSN11 0PG: not on the flood risk listSN11 0PH: not on the flood risk listSN11 0PL: not on the flood risk listSN11 0PN: not on the flood risk listSN11 0PP: not on the flood risk listSN11 0PQ: not on the flood risk listSN11 0PR: not on the flood risk listSN11 0PS: not on the flood risk listSN11 0PT: not on the flood risk listSN11 0PU: not on the flood risk listSN11 0PW: not on the flood risk listSN11 0PX: not on the flood risk listSN11 0PY: not on the flood risk listSN11 0PZ: not on the flood risk listSN11 0QB: not on the flood risk listSN11 0QD: not on the flood risk listSN11 0QE: not on the flood risk listSN11 0QG: not on the flood risk listSN11 0QJ: not on the flood risk listSN11 0QL: not on the flood risk listSN11 0QR: not on the flood risk listSN11 0QS: not on the flood risk listSN11 0QT: not on the flood risk listSN11 0RH: not on the flood risk listSN11 0RP: not on the flood risk listSN11 0RR: not on the flood risk listSN11 0RS: not on the flood risk listSN11 0RT: not on the flood risk listSN11 0RU: not on the flood risk listSN11 0RX: not on the flood risk listSN11 0SA: not on the flood risk listSN11 0SB: not on the flood risk listSN11 0SE: not on the flood risk listSN11 0SL: not on the flood risk listSN11 0SP: not on the flood risk listSN11 0SS: not on the flood risk listSN11 0UA: not on the flood risk listSN11 0UD: not on the flood risk listSN11 0UF: not on the flood risk listSN11 0UQ: not on the flood risk listSN11 8AD: not on the flood risk listSN11 8AG: not on the flood risk listSN11 8AH: not on the flood risk listSN11 8AL: not on the flood risk listSN11 8AP: not on the flood risk listSN11 8AQ: not on the flood risk listSN11 8AR: not on the flood risk listSN11 8AU: not on the flood risk listSN11 8AW: not on the flood risk listSN11 8AZ: not on the flood risk listSN11 8BA: not on the flood risk listSN11 8BB: not on the flood risk listSN11 8BD: not on the flood risk listSN11 8BE: not on the flood risk listSN11 8BG: not on the flood risk listSN11 8BH: not on the flood risk listSN11 8BN: not on the flood risk listSN11 8BQ: not on the flood risk listSN11 8BU: not on the flood risk listSN11 8BY: not on the flood risk listSN11 8BZ: not on the flood risk listSN11 8DA: not on the flood risk listSN11 8DG: not on the flood risk listSN11 8DH: not on the flood risk listSN11 8DQ: not on the flood risk listSN11 8DT: not on the flood risk listSN11 8DU: not on the flood risk listSN11 8DY: not on the flood risk listSN11 8DZ: not on the flood risk listSN11 8EB: not on the flood risk listSN11 8EE: not on the flood risk listSN11 8EF: not on the flood risk listSN11 8EJ: not on the flood risk listSN11 8EL: not on the flood risk listSN11 8EN: not on the flood risk listSN11 8ER: not on the flood risk listSN11 8ET: not on the flood risk listSN11 8EW: not on the flood risk listSN11 8EY: not on the flood risk listSN11 8EZ: not on the flood risk listSN11 8FA: not on the flood risk listSN11 8FJ: not on the flood risk listSN11 8FP: not on the flood risk listSN11 8FR: not on the flood risk listSN11 8FS: not on the flood risk listSN11 8FT: not on the flood risk listSN11 8FU: not on the flood risk listSN11 8FX: not on the flood risk listSN11 8FY: not on the flood risk listSN11 8GA: not on the flood risk listSN11 8GB: not on the flood risk listSN11 8GD: not on the flood risk listSN11 8GE: not on the flood risk listSN11 8GH: not on the flood risk listSN11 8GJ: not on the flood risk listSN11 8GL: not on the flood risk listSN11 8GN: not on the flood risk listSN11 8GQ: not on the flood risk listSN11 8GS: not on the flood risk listSN11 8GT: not on the flood risk listSN11 8GU: not on the flood risk listSN11 8GY: not on the flood risk listSN11 8HD: not on the flood risk listSN11 8HJ: not on the flood risk listSN11 8HN: not on the flood risk listSN11 8HP: not on the flood risk listSN11 8HS: not on the flood risk listSN11 8HT: not on the flood risk listSN11 8HX: not on the flood risk listSN11 8JB: not on the flood risk listSN11 8JD: not on the flood risk listSN11 8JG: not on the flood risk listSN11 8JJ: not on the flood risk listSN11 8JL: not on the flood risk listSN11 8JP: not on the flood risk listSN11 8JU: not on the flood risk listSN11 8JW: not on the flood risk listSN11 8JX: not on the flood risk listSN11 8JZ: not on the flood risk listSN11 8LA: not on the flood risk listSN11 8LB: not on the flood risk listSN11 8LD: not on the flood risk listSN11 8LE: not on the flood risk listSN11 8LF: not on the flood risk listSN11 8LG: not on the flood risk listSN11 8LH: not on the flood risk listSN11 8LN: not on the flood risk listSN11 8LP: not on the flood risk listSN11 8LQ: not on the flood risk listSN11 8LR: not on the flood risk listSN11 8LW: not on the flood risk listSN11 8LX: not on the flood risk listSN11 8LY: not on the flood risk listSN11 8NB: not on the flood risk listSN11 8ND: not on the flood risk listSN11 8NE: not on the flood risk listSN11 8NG: not on the flood risk listSN11 8NH: not on the flood risk listSN11 8NL: not on the flood risk listSN11 8NS: not on the flood risk listSN11 8NX: not on the flood risk listSN11 8PB: not on the flood risk listSN11 8PD: not on the flood risk listSN11 8PE: not on the flood risk listSN11 8PG: not on the flood risk listSN11 8PL: not on the flood risk listSN11 8PS: not on the flood risk listSN11 8PT: not on the flood risk listSN11 8PU: not on the flood risk listSN11 8PW: not on the flood risk listSN11 8PX: not on the flood risk listSN11 8PY: not on the flood risk listSN11 8PZ: not on the flood risk listSN11 8QA: not on the flood risk listSN11 8QB: not on the flood risk listSN11 8QD: not on the flood risk listSN11 8QE: not on the flood risk listSN11 8QG: not on the flood risk listSN11 8QH: not on the flood risk listSN11 8QJ: not on the flood risk listSN11 8QL: not on the flood risk listSN11 8QN: not on the flood risk listSN11 8QQ: not on the flood risk listSN11 8QR: not on the flood risk listSN11 8QU: not on the flood risk listSN11 8QW: not on the flood risk listSN11 8QY: not on the flood risk listSN11 8QZ: not on the flood risk listSN11 8RA: not on the flood risk listSN11 8RB: not on the flood risk listSN11 8RD: not on the flood risk listSN11 8RE: not on the flood risk listSN11 8RF: not on the flood risk listSN11 8RG: not on the flood risk listSN11 8RH: not on the flood risk listSN11 8RJ: not on the flood risk listSN11 8RP: not on the flood risk listSN11 8RQ: not on the flood risk listSN11 8RR: not on the flood risk listSN11 8RS: not on the flood risk listSN11 8RT: not on the flood risk listSN11 8RU: not on the flood risk listSN11 8RX: not on the flood risk listSN11 8RZ: not on the flood risk listSN11 8SA: not on the flood risk listSN11 8SB: not on the flood risk listSN11 8SD: not on the flood risk listSN11 8SE: not on the flood risk listSN11 8SF: not on the flood risk listSN11 8SG: not on the flood risk listSN11 8SJ: not on the flood risk listSN11 8SL: not on the flood risk listSN11 8SN: not on the flood risk listSN11 8SP: not on the flood risk listSN11 8SQ: not on the flood risk listSN11 8SR: not on the flood risk listSN11 8SS: not on the flood risk listSN11 8ST: not on the flood risk listSN11 8SU: not on the flood risk listSN11 8SW: not on the flood risk listSN11 8SX: not on the flood risk listSN11 8SY: not on the flood risk listSN11 8TB: not on the flood risk listSN11 8TD: not on the flood risk listSN11 8TE: not on the flood risk listSN11 8TH: not on the flood risk listSN11 8TJ: not on the flood risk listSN11 8TT: not on the flood risk listSN11 8UA: not on the flood risk listSN11 8UB: not on the flood risk listSN11 8UD: not on the flood risk listSN11 8UL: not on the flood risk listSN11 8UN: not on the flood risk listSN11 8UP: not on the flood risk listSN11 8UQ: not on the flood risk listSN11 8UR: not on the flood risk listSN11 8UT: not on the flood risk listSN11 8UW: not on the flood risk listSN11 8UX: not on the flood risk listSN11 8UZ: not on the flood risk listSN11 8WP: not on the flood risk listSN11 8XN: not on the flood risk listSN11 8XP: not on the flood risk listSN11 8XS: not on the flood risk listSN11 8XT: not on the flood risk listSN11 8XU: not on the flood risk listSN11 8XW: not on the flood risk listSN11 8XX: not on the flood risk listSN11 8XY: not on the flood risk listSN11 8YA: not on the flood risk listSN11 8YB: not on the flood risk listSN11 8YD: not on the flood risk listSN11 8YE: not on the flood risk listSN11 8YF: not on the flood risk listSN11 8YG: not on the flood risk listSN11 8YH: not on the flood risk listSN11 8YL: not on the flood risk listSN11 8YQ: not on the flood risk listSN11 9AA: not on the flood risk listSN11 9AB: not on the flood risk listSN11 9AD: not on the flood risk listSN11 9AF: not on the flood risk listSN11 9AG: not on the flood risk listSN11 9AH: not on the flood risk listSN11 9AJ: not on the flood risk listSN11 9AL: not on the flood risk listSN11 9AN: not on the flood risk listSN11 9AP: not on the flood risk listSN11 9AQ: not on the flood risk listSN11 9AR: not on the flood risk listSN11 9AT: not on the flood risk listSN11 9AZ: not on the flood risk listSN11 9BA: not on the flood risk listSN11 9BE: not on the flood risk listSN11 9BF: not on the flood risk listSN11 9BG: not on the flood risk listSN11 9BH: not on the flood risk listSN11 9BL: not on the flood risk listSN11 9BN: not on the flood risk listSN11 9BP: not on the flood risk listSN11 9BS: not on the flood risk listSN11 9BT: not on the flood risk listSN11 9BU: not on the flood risk listSN11 9BW: not on the flood risk listSN11 9BX: not on the flood risk listSN11 9DB: not on the flood risk listSN11 9DD: not on the flood risk listSN11 9DF: not on the flood risk listSN11 9DG: not on the flood risk listSN11 9DH: not on the flood risk listSN11 9DJ: not on the flood risk listSN11 9DN: not on the flood risk listSN11 9DP: not on the flood risk listSN11 9DR: not on the flood risk listSN11 9DS: not on the flood risk listSN11 9DU: not on the flood risk listSN11 9DX: not on the flood risk listSN11 9DY: not on the flood risk listSN11 9DZ: not on the flood risk listSN11 9EB: not on the flood risk listSN11 9ED: not on the flood risk listSN11 9EE: not on the flood risk listSN11 9EF: not on the flood risk listSN11 9EG: not on the flood risk listSN11 9EH: not on the flood risk listSN11 9EJ: not on the flood risk listSN11 9EN: not on the flood risk listSN11 9EP: not on the flood risk listSN11 9ET: not on the flood risk listSN11 9EU: not on the flood risk listSN11 9EX: not on the flood risk listSN11 9EY: not on the flood risk listSN11 9FA: not on the flood risk listSN11 9FD: not on the flood risk listSN11 9FL: not on the flood risk listSN11 9FN: not on the flood risk listSN11 9FP: not on the flood risk listSN11 9FQ: not on the flood risk listSN11 9FR: not on the flood risk listSN11 9FS: not on the flood risk listSN11 9FT: not on the flood risk listSN11 9HA: not on the flood risk listSN11 9HB: not on the flood risk listSN11 9HD: not on the flood risk listSN11 9HE: not on the flood risk listSN11 9HF: not on the flood risk listSN11 9HG: not on the flood risk listSN11 9HH: not on the flood risk listSN11 9HJ: not on the flood risk listSN11 9HL: not on the flood risk listSN11 9HN: not on the flood risk listSN11 9HP: not on the flood risk listSN11 9HQ: not on the flood risk listSN11 9HR: not on the flood risk listSN11 9HS: not on the flood risk listSN11 9HT: not on the flood risk listSN11 9HU: not on the flood risk listSN11 9HW: not on the flood risk listSN11 9HX: not on the flood risk listSN11 9HY: not on the flood risk listSN11 9HZ: not on the flood risk listSN11 9JA: not on the flood risk listSN11 9JB: not on the flood risk listSN11 9JD: not on the flood risk listSN11 9JE: not on the flood risk listSN11 9JG: not on the flood risk listSN11 9JH: not on the flood risk listSN11 9JJ: not on the flood risk listSN11 9JL: not on the flood risk listSN11 9JN: not on the flood risk listSN11 9JP: not on the flood risk listSN11 9JQ: not on the flood risk listSN11 9JT: not on the flood risk listSN11 9JU: not on the flood risk listSN11 9JW: not on the flood risk listSN11 9JY: not on the flood risk listSN11 9JZ: not on the flood risk listSN11 9LA: not on the flood risk listSN11 9LB: not on the flood risk listSN11 9LD: not on the flood risk listSN11 9LE: not on the flood risk listSN11 9LF: not on the flood risk listSN11 9LG: not on the flood risk listSN11 9LH: not on the flood risk listSN11 9LL: not on the flood risk listSN11 9LN: not on the flood risk listSN11 9LP: not on the flood risk listSN11 9LR: not on the flood risk listSN11 9LS: not on the flood risk listSN11 9LT: not on the flood risk listSN11 9LW: not on the flood risk listSN11 9LX: not on the flood risk listSN11 9LY: not on the flood risk listSN11 9NA: not on the flood risk listSN11 9ND: not on the flood risk listSN11 9NE: not on the flood risk listSN11 9NH: not on the flood risk listSN11 9NJ: not on the flood risk listSN11 9NL: not on the flood risk listSN11 9NN: not on the flood risk listSN11 9NP: not on the flood risk listSN11 9NQ: not on the flood risk listSN11 9NR: not on the flood risk listSN11 9NS: not on the flood risk listSN11 9NT: not on the flood risk listSN11 9NU: not on the flood risk listSN11 9NW: not on the flood risk listSN11 9NX: not on the flood risk listSN11 9NY: not on the flood risk listSN11 9PA: not on the flood risk listSN11 9PB: not on the flood risk listSN11 9PD: not on the flood risk listSN11 9PE: not on the flood risk listSN11 9PF: not on the flood risk listSN11 9PG: not on the flood risk listSN11 9PJ: not on the flood risk listSN11 9PL: not on the flood risk listSN11 9PN: not on the flood risk listSN11 9PP: not on the flood risk listSN11 9PQ: not on the flood risk listSN11 9PR: not on the flood risk listSN11 9PS: not on the flood risk listSN11 9PT: not on the flood risk listSN11 9PU: not on the flood risk listSN11 9PW: not on the flood risk listSN11 9PX: not on the flood risk listSN11 9QA: not on the flood risk listSN11 9QB: not on the flood risk listSN11 9QD: not on the flood risk listSN11 9QE: not on the flood risk listSN11 9QJ: not on the flood risk listSN11 9QL: not on the flood risk listSN11 9QP: not on the flood risk listSN11 9QS: not on the flood risk listSN11 9QZ: not on the flood risk listSN11 9RA: not on the flood risk listSN11 9RB: not on the flood risk listSN11 9RF: not on the flood risk listSN11 9RG: not on the flood risk listSN11 9RJ: not on the flood risk listSN11 9RT: not on the flood risk listSN11 9RW: not on the flood risk listSN11 9RZ: not on the flood risk listSN11 9SD: not on the flood risk listSN11 9SE: not on the flood risk listSN11 9SF: not on the flood risk listSN11 9SH: not on the flood risk listSN11 9TD: not on the flood risk listSN11 9TE: not on the flood risk listSN11 9UE: not on the flood risk listSN11 9UF: not on the flood risk listSN11 9UG: not on the flood risk listSN11 9UP: not on the flood risk listSN11 9UR: not on the flood risk listSN11 9UW: not on the flood risk listSN11 0AY: low flood risk at worstSN11 0RA: low flood risk at worstSN11 0DU: low flood risk at worstSN11 0HS: low flood risk at worstSN11 0LT: low flood risk at worstSN11 0QX: low flood risk at worstSN11 8EA: low flood risk at worstSN11 8NW: low flood risk at worstSN11 8JT: low flood risk at worstSN11 8NT: low flood risk at worstSN11 8NZ: low flood risk at worstSN11 8PA: low flood risk at worstSN11 8PJ: low flood risk at worstSN11 8UH: low flood risk at worstSN11 8XR: low flood risk at worstSN11 0EN: medium flood risk at worstSN11 8SZ: medium flood risk at worstSN11 0JJ: high flood riskSN11 0NT: high flood riskSN11 8DP: high flood riskSN11 8HG: high flood riskSN11 8HQ: high flood riskSN11 8JA: high flood riskSN11 8PR: high flood riskSN11 8QF: high flood riskSN11 8QT: high flood riskSN11 8SH: high flood riskSN11 8TA: high flood riskSN11 8TR: high flood riskSN11 8UJ: high flood riskSN11 9JX: high flood riskSN11 9LJ: high flood risk Calne Map of every postcode in SN11, by flood risk Of the 774 postcodes in SN11 that ONS places, 15 have a home or business at high risk, 2 are at medium risk at worst, 23 are at low risk at worst and 734 are not on the Environment Agency's at-risk list. Places named: Calne. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A342A361 Calne
  • A home or business at high risk: 15
  • At medium risk at worst: 2
  • At low risk at worst: 23
  • At very low risk only: 0
  • Not on the at-risk list: 734

Of the 774 postcodes in SN11 that ONS places, 15 have a home or business at high risk, 2 are at medium risk at worst, 23 are at low risk at worst and 734 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 51.4398, longitude -1.9996. 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

15 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.

SN11 8JA13 at high riskSN11 8HQ7 at high riskSN11 8HG4 at high riskSN11 8UJ4 at high riskSN11 8TA2 at high riskSN11 8DP1 at high riskSN11 8PR1 at high riskSN11 0JJ1 at high riskSN11 0NT1 at high riskSN11 8QF1 at high riskSN11 8QT1 at high riskSN11 8SH1 at high risk

What broadband can you get in SN11?

Ofcom reports on 764 of the 774 postcodes in SN11. At 503 of them every home and business can get gigabit broadband, and at 12 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit503 of 764
Postcodes where every home can get superfast679 of 764
Postcodes where some cannot get decent broadband12 of 764

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 SN11 at risk of flooding?

40 of the 774 postcodes in SN11 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 62 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 40 of 774 postcodes High: 40Medium: 22Low: 165Very low: 13

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 SN11?

Homes in SN11 sold for a typical £282,500 in the 12 months to August 2026, across 351 sales, down 0.9% on the 12 months before, HM Land Registry's figures show.

£282,500 typical price, the 12 months to August 2026
£285,000 12 months to August 2025
▼ down 0.9% on the 12 months before
  • Detached £425,000 109 sales
  • Semi-detached £280,000 102 sales
  • Terraced £247,500 114 sales
  • Flat or maisonette £154,500 26 sales

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 SN11

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

SN11 0238 postcodesSN11 73 postcodesSN11 8297 postcodesSN11 9236 postcodes
UK postcode format explained

Places in SN11

Towns and villages with postcodes in SN11, and how many each has here.

Calne postcodes,543

Who covers SN11

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

  • Chippenham611
  • Melksham and Devizes163

Police force areas

  • Wiltshire774

Next to SN11

SN10 postcode district SN12 postcode district All SN districts Calne postcodes

"Next to" is by number: the districts before and after SN11 in the SN area.

Check a postcode

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