CB23 postcode district: Cambourne and around, Cambridgeshire

CB23 is a postcode district in Cambridgeshire, with 883 postcodes in use in 8 sectors. It has postcodes in Cambourne, Papworth Everard, Hardwick and 3 more places. It is split between 2 councils: South Cambridgeshire (881 postcodes) and Cambridge (2).

Postcodes in use
883
Sectors
8
Councils
2 councils
Places
6 places

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

Every postcode in CB23, by flood risk

Map of every postcode in CB23, by flood risk Of the 883 postcodes in CB23 that ONS places, 21 have a home or business at high risk, 5 are at medium risk at worst, 13 are at low risk at worst and 844 are not on the Environment Agency's at-risk list. Places named: Cambourne, Cambridge, Histon and Impington, Great Shelford and Stapleford, Papworth Everard, Girton. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A1134A1301M11 CB23 1AA: not on the flood risk listCB23 1AB: not on the flood risk listCB23 1AD: not on the flood risk listCB23 1AE: not on the flood risk listCB23 1AF: not on the flood risk listCB23 1AG: not on the flood risk listCB23 1EN: not on the flood risk listCB23 1ER: not on the flood risk listCB23 1ES: not on the flood risk listCB23 1ET: not on the flood risk listCB23 1EU: not on the flood risk listCB23 1EW: not on the flood risk listCB23 1EX: not on the flood risk listCB23 1EY: not on the flood risk listCB23 1HA: not on the flood risk listCB23 1HB: not on the flood risk listCB23 1HD: not on the flood risk listCB23 1HE: not on the flood risk listCB23 1HF: not on the flood risk listCB23 1HH: not on the flood risk listCB23 1HJ: not on the flood risk listCB23 1HL: not on the flood risk listCB23 1HN: not on the flood risk listCB23 1HP: not on the flood risk listCB23 1HQ: not on the flood risk listCB23 1HR: not on the flood risk listCB23 1HU: not on the flood risk listCB23 1HW: not on the flood risk listCB23 1JA: not on the flood risk listCB23 1JB: not on the flood risk listCB23 1JD: not on the flood risk listCB23 1JE: not on the flood risk listCB23 1JH: not on the flood risk listCB23 1JJ: not on the flood risk listCB23 1JL: not on the flood risk listCB23 1JN: not on the flood risk listCB23 1JP: not on the flood risk listCB23 1JQ: not on the flood risk listCB23 1JR: not on the flood risk listCB23 1JS: not on the flood risk listCB23 1JT: not on the flood risk listCB23 1JU: not on the flood risk listCB23 1JX: not on the flood risk listCB23 1JZ: not on the flood risk listCB23 1LD: not on the flood risk listCB23 1LH: not on the flood risk listCB23 1LL: not on the flood risk listCB23 1LP: not on the flood risk listCB23 1LR: not on the flood risk listCB23 1LS: not on the flood risk listCB23 1LU: not on the flood risk listCB23 1LW: not on the flood risk listCB23 1LY: not on the flood risk listCB23 1NA: not on the flood risk listCB23 1YL: not on the flood risk listCB23 2AA: not on the flood risk listCB23 2FS: not on the flood risk listCB23 2NG: not on the flood risk listCB23 2NH: not on the flood risk listCB23 2NJ: not on the flood risk listCB23 2NL: not on the flood risk listCB23 2NN: not on the flood risk listCB23 2NP: not on the flood risk listCB23 2NS: not on the flood risk listCB23 2NW: not on the flood risk listCB23 2RE: not on the flood risk listCB23 2RF: not on the flood risk listCB23 2RH: not on the flood risk listCB23 2RP: not on the flood risk listCB23 2RR: not on the flood risk listCB23 2RT: not on the flood risk listCB23 2RZ: not on the flood risk listCB23 2SN: not on the flood risk listCB23 2SP: not on the flood risk listCB23 2SU: not on the flood risk listCB23 2SY: not on the flood risk listCB23 2SZ: not on the flood risk listCB23 2TA: not on the flood risk listCB23 2TB: not on the flood risk listCB23 2TD: not on the flood risk listCB23 2TE: not on the flood risk listCB23 2TN: not on the flood risk listCB23 2TQ: not on the flood risk listCB23 2TR: not on the flood risk listCB23 2TS: not on the flood risk listCB23 2TU: not on the flood risk listCB23 2TX: not on the flood risk listCB23 2TY: not on the flood risk listCB23 2TZ: not on the flood risk listCB23 2UA: not on the flood risk listCB23 2UB: not on the flood risk listCB23 2UF: not on the flood risk listCB23 2UG: not on the flood risk listCB23 2UJ: not on the flood risk listCB23 2UL: not on the flood risk listCB23 2UN: not on the flood risk listCB23 2UP: not on the flood risk listCB23 2UR: not on the flood risk listCB23 2UT: not on the flood risk listCB23 2UU: not on the flood risk listCB23 3AA: not on the flood risk listCB23 3AD: not on the flood risk listCB23 3AF: not on the flood risk listCB23 3AG: not on the flood risk listCB23 3AL: not on the flood risk listCB23 3AN: not on the flood risk listCB23 3AQ: not on the flood risk listCB23 3AS: not on the flood risk listCB23 3AT: not on the flood risk listCB23 3AY: not on the flood risk listCB23 3AZ: not on the flood risk listCB23 3BA: not on the flood risk listCB23 3DJ: not on the flood risk listCB23 3GJ: not on the flood risk listCB23 3GN: not on the flood risk listCB23 3GR: not on the flood risk listCB23 3GS: not on the flood risk listCB23 3GT: not on the flood risk listCB23 3GU: not on the flood risk listCB23 3GX: not on the flood risk listCB23 3LE: not on the flood risk listCB23 3LF: not on the flood risk listCB23 3LG: not on the flood risk listCB23 3LH: not on the flood risk listCB23 3NX: not on the flood risk listCB23 3NY: not on the flood risk listCB23 3PA: not on the flood risk listCB23 3PB: not on the flood risk listCB23 3PD: not on the flood risk listCB23 3PF: not on the flood risk listCB23 3PG: not on the flood risk listCB23 3PH: not on the flood risk listCB23 3PJ: not on the flood risk listCB23 3PL: not on the flood risk listCB23 3PN: not on the flood risk listCB23 3PP: not on the flood risk listCB23 3PR: not on the flood risk listCB23 3PS: not on the flood risk listCB23 3PX: not on the flood risk listCB23 3QH: not on the flood risk listCB23 3QL: not on the flood risk listCB23 3QX: not on the flood risk listCB23 3RB: not on the flood risk listCB23 3RN: not on the flood risk listCB23 3RR: not on the flood risk listCB23 3RS: not on the flood risk listCB23 3UG: not on the flood risk listCB23 3UP: not on the flood risk listCB23 3UU: not on the flood risk listCB23 3UY: not on the flood risk listCB23 3XL: not on the flood risk listCB23 3XN: not on the flood risk listCB23 4AB: not on the flood risk listCB23 4EY: not on the flood risk listCB23 4GG: not on the flood risk listCB23 4HS: not on the flood risk listCB23 4HU: not on the flood risk listCB23 4HZ: not on the flood risk listCB23 4JA: not on the flood risk listCB23 4JB: not on the flood risk listCB23 4JD: not on the flood risk listCB23 4JJ: not on the flood risk listCB23 4JL: not on the flood risk listCB23 4JP: not on the flood risk listCB23 4JR: not on the flood risk listCB23 4JS: not on the flood risk listCB23 4JU: not on the flood risk listCB23 4JX: not on the flood risk listCB23 4JY: not on the flood risk listCB23 4JZ: not on the flood risk listCB23 4LA: not on the flood risk listCB23 4LB: not on the flood risk listCB23 4LJ: not on the flood risk listCB23 4LL: not on the flood risk listCB23 4LP: not on the flood risk listCB23 4LR: not on the flood risk listCB23 4LS: not on the flood risk listCB23 4LU: not on the flood risk listCB23 4LX: not on the flood risk listCB23 4LY: not on the flood risk listCB23 4LZ: not on the flood risk listCB23 4NA: not on the flood risk listCB23 4NF: not on the flood risk listCB23 4NG: not on the flood risk listCB23 4NH: not on the flood risk listCB23 4NJ: not on the flood risk listCB23 4NL: not on the flood risk listCB23 4NP: not on the flood risk listCB23 4NQ: not on the flood risk listCB23 4NR: not on the flood risk listCB23 4NS: not on the flood risk listCB23 4NT: not on the flood risk listCB23 4NU: not on the flood risk listCB23 4NW: not on the flood risk listCB23 4WU: not on the flood risk listCB23 5AB: not on the flood risk listCB23 5AD: not on the flood risk listCB23 5AE: not on the flood risk listCB23 5AF: not on the flood risk listCB23 5AP: not on the flood risk listCB23 5AR: not on the flood risk listCB23 5AS: not on the flood risk listCB23 5BH: not on the flood risk listCB23 5BL: not on the flood risk listCB23 5BN: not on the flood risk listCB23 5BP: not on the flood risk listCB23 5DG: not on the flood risk listCB23 5DJ: not on the flood risk listCB23 5DQ: not on the flood risk listCB23 5DR: not on the flood risk listCB23 5DT: not on the flood risk listCB23 5EB: not on the flood risk listCB23 5EG: not on the flood risk listCB23 5FA: not on the flood risk listCB23 5FP: not on the flood risk listCB23 5FW: not on the flood risk listCB23 5HS: not on the flood risk listCB23 5HT: not on the flood risk listCB23 5HX: not on the flood risk listCB23 5JF: not on the flood risk listCB23 5JH: not on the flood risk listCB23 5JQ: not on the flood risk listCB23 5JS: not on the flood risk listCB23 6AA: not on the flood risk listCB23 6AE: not on the flood risk listCB23 6AF: not on the flood risk listCB23 6AH: not on the flood risk listCB23 6AP: not on the flood risk listCB23 6AR: not on the flood risk listCB23 6AS: not on the flood risk listCB23 6AW: not on the flood risk listCB23 6AZ: not on the flood risk listCB23 6BD: not on the flood risk listCB23 6BF: not on the flood risk listCB23 6BG: not on the flood risk listCB23 6BL: not on the flood risk listCB23 6BN: not on the flood risk listCB23 6BT: not on the flood risk listCB23 6BU: not on the flood risk listCB23 6BY: not on the flood risk listCB23 6DD: not on the flood risk listCB23 6DH: not on the flood risk listCB23 6DL: not on the flood risk listCB23 6DP: not on the flood risk listCB23 6DS: not on the flood risk listCB23 6DU: not on the flood risk listCB23 6DW: not on the flood risk listCB23 6DY: not on the flood risk listCB23 6DZ: not on the flood risk listCB23 6EA: not on the flood risk listCB23 6ED: not on the flood risk listCB23 6EF: not on the flood risk listCB23 6EH: not on the flood risk listCB23 6EJ: not on the flood risk listCB23 6EP: not on the flood risk listCB23 6EQ: not on the flood risk listCB23 6ER: not on the flood risk listCB23 6FA: not on the flood risk listCB23 6FE: not on the flood risk listCB23 6FF: not on the flood risk listCB23 6FH: not on the flood risk listCB23 6FJ: not on the flood risk listCB23 6FL: not on the flood risk listCB23 6FP: not on the flood risk listCB23 6FR: not on the flood risk listCB23 6FU: not on the flood risk listCB23 6FX: not on the flood risk listCB23 6FZ: not on the flood risk listCB23 6GA: not on the flood risk listCB23 6GB: not on the flood risk listCB23 6GL: not on the flood risk listCB23 6GN: not on the flood risk listCB23 6GP: not on the flood risk listCB23 6GX: not on the flood risk listCB23 6HA: not on the flood risk listCB23 6HB: not on the flood risk listCB23 6HE: not on the flood risk listCB23 6HW: not on the flood risk listCB23 6HY: not on the flood risk listCB23 6JA: not on the flood risk listCB23 6JB: not on the flood risk listCB23 6JH: not on the flood risk listCB23 6JQ: not on the flood risk listCB23 6JR: not on the flood risk listCB23 6JW: not on the flood risk listCB23 6JZ: not on the flood risk listCB23 6LJ: not on the flood risk listCB23 6LL: not on the flood risk listCB23 6LN: not on the flood risk listCB23 6LP: not on the flood risk listCB23 6LR: not on the flood risk listCB23 6LS: not on the flood risk listCB23 6LW: not on the flood risk listCB23 6LZ: not on the flood risk listCB23 6ND: not on the flood risk listCB23 6NF: not on the flood risk listCB23 6NG: not on the flood risk listCB23 6NN: not on the flood risk listCB23 6NP: not on the flood risk listCB23 6NR: not on the flood risk listCB23 6NS: not on the flood risk listCB23 6NU: not on the flood risk listCB23 6ZR: not on the flood risk listCB23 7AA: not on the flood risk listCB23 7AB: not on the flood risk listCB23 7AD: not on the flood risk listCB23 7AG: not on the flood risk listCB23 7AH: not on the flood risk listCB23 7AJ: not on the flood risk listCB23 7AL: not on the flood risk listCB23 7AN: not on the flood risk listCB23 7AP: not on the flood risk listCB23 7AQ: not on the flood risk listCB23 7AR: not on the flood risk listCB23 7AS: not on the flood risk listCB23 7AT: not on the flood risk listCB23 7AU: not on the flood risk listCB23 7AW: not on the flood risk listCB23 7AX: not on the flood risk listCB23 7AY: not on the flood risk listCB23 7AZ: not on the flood risk listCB23 7BA: not on the flood risk listCB23 7BB: not on the flood risk listCB23 7BD: not on the flood risk listCB23 7BE: not on the flood risk listCB23 7BF: not on the flood risk listCB23 7BH: not on the flood risk listCB23 7BL: not on the flood risk listCB23 7BN: not on the flood risk listCB23 7BP: not on the flood risk listCB23 7BS: not on the flood risk listCB23 7BT: not on the flood risk listCB23 7BW: not on the flood risk listCB23 7BY: not on the flood risk listCB23 7BZ: not on the flood risk listCB23 7DA: not on the flood risk listCB23 7DB: not on the flood risk listCB23 7DE: not on the flood risk listCB23 7DF: not on the flood risk listCB23 7DG: not on the flood risk listCB23 7DH: not on the flood risk listCB23 7DJ: not on the flood risk listCB23 7DQ: not on the flood risk listCB23 7DR: not on the flood risk listCB23 7DS: not on the flood risk listCB23 7DT: not on the flood risk listCB23 7DU: not on the flood risk listCB23 7DX: not on the flood risk listCB23 7DY: not on the flood risk listCB23 7EB: not on the flood risk listCB23 7ED: not on the flood risk listCB23 7EE: not on the flood risk listCB23 7EG: not on the flood risk listCB23 7EH: not on the flood risk listCB23 7EJ: not on the flood risk listCB23 7EN: not on the flood risk listCB23 7ER: not on the flood risk listCB23 7ET: not on the flood risk listCB23 7EZ: not on the flood risk listCB23 7FE: not on the flood risk listCB23 7FF: not on the flood risk listCB23 7FG: not on the flood risk listCB23 7FL: not on the flood risk listCB23 7FP: not on the flood risk listCB23 7FQ: not on the flood risk listCB23 7FU: not on the flood risk listCB23 7FW: not on the flood risk listCB23 7FX: not on the flood risk listCB23 7GA: not on the flood risk listCB23 7GD: not on the flood risk listCB23 7GT: not on the flood risk listCB23 7GU: not on the flood risk listCB23 7GX: not on the flood risk listCB23 7GY: not on the flood risk listCB23 7NL: not on the flood risk listCB23 7NR: not on the flood risk listCB23 7NS: not on the flood risk listCB23 7NW: not on the flood risk listCB23 7NY: not on the flood risk listCB23 7PA: not on the flood risk listCB23 7PB: not on the flood risk listCB23 7PF: not on the flood risk listCB23 7PG: not on the flood risk listCB23 7PH: not on the flood risk listCB23 7PJ: not on the flood risk listCB23 7PN: not on the flood risk listCB23 7PP: not on the flood risk listCB23 7PQ: not on the flood risk listCB23 7PR: not on the flood risk listCB23 7PT: not on the flood risk listCB23 7PU: not on the flood risk listCB23 7PW: not on the flood risk listCB23 7PX: not on the flood risk listCB23 7PZ: not on the flood risk listCB23 7QA: not on the flood risk listCB23 7QE: not on the flood risk listCB23 7QG: not on the flood risk listCB23 7QH: not on the flood risk listCB23 7QJ: not on the flood risk listCB23 7QL: not on the flood risk listCB23 7QN: not on the flood risk listCB23 7QP: not on the flood risk listCB23 7QQ: not on the flood risk listCB23 7QR: not on the flood risk listCB23 7QW: not on the flood risk listCB23 7QX: not on the flood risk listCB23 7QY: not on the flood risk listCB23 7RE: not on the flood risk listCB23 7RY: not on the flood risk listCB23 7UE: not on the flood risk listCB23 7UY: not on the flood risk listCB23 7WG: not on the flood risk listCB23 7XF: not on the flood risk listCB23 7XH: not on the flood risk listCB23 7XL: not on the flood risk listCB23 7XN: not on the flood risk listCB23 7XR: not on the flood risk listCB23 7XS: not on the flood risk listCB23 7XU: not on the flood risk listCB23 7XX: not on the flood risk listCB23 7YE: not on the flood risk listCB23 7ZA: not on the flood risk listCB23 7ZE: not on the flood risk listCB23 7ZH: not on the flood risk listCB23 7ZL: not on the flood risk listCB23 7ZR: not on the flood risk listCB23 8AA: not on the flood risk listCB23 8AB: not on the flood risk listCB23 8AD: not on the flood risk listCB23 8AE: not on the flood risk listCB23 8AF: not on the flood risk listCB23 8AG: not on the flood risk listCB23 8AH: not on the flood risk listCB23 8AJ: not on the flood risk listCB23 8AP: not on the flood risk listCB23 8AQ: not on the flood risk listCB23 8AR: not on the flood risk listCB23 8AS: not on the flood risk listCB23 8AT: not on the flood risk listCB23 8AY: not on the flood risk listCB23 8AZ: not on the flood risk listCB23 8BA: not on the flood risk listCB23 8BD: not on the flood risk listCB23 8BE: not on the flood risk listCB23 8BH: not on the flood risk listCB23 8BN: not on the flood risk listCB23 8BP: not on the flood risk listCB23 8BS: not on the flood risk listCB23 8BT: not on the flood risk listCB23 8BU: not on the flood risk listCB23 8BW: not on the flood risk listCB23 8BX: not on the flood risk listCB23 8BY: not on the flood risk listCB23 8BZ: not on the flood risk listCB23 8DA: not on the flood risk listCB23 8DB: not on the flood risk listCB23 8DD: not on the flood risk listCB23 8DE: not on the flood risk listCB23 8DF: not on the flood risk listCB23 8DN: not on the flood risk listCB23 8DP: not on the flood risk listCB23 8DS: not on the flood risk listCB23 8DU: not on the flood risk listCB23 8DW: not on the flood risk listCB23 8DX: not on the flood risk listCB23 8DY: not on the flood risk listCB23 8DZ: not on the flood risk listCB23 8EA: not on the flood risk listCB23 8EE: not on the flood risk listCB23 8EF: not on the flood risk listCB23 8EG: not on the flood risk listCB23 8EJ: not on the flood risk listCB23 8EN: not on the flood risk listCB23 8EQ: not on the flood risk listCB23 8HD: not on the flood risk listCB23 8HE: not on the flood risk listCB23 8HF: not on the flood risk listCB23 8HG: not on the flood risk listCB23 8HH: not on the flood risk listCB23 8HP: not on the flood risk listCB23 8HQ: not on the flood risk listCB23 8SB: not on the flood risk listCB23 8SD: not on the flood risk listCB23 8SF: not on the flood risk listCB23 8SJ: not on the flood risk listCB23 8SL: not on the flood risk listCB23 8SN: not on the flood risk listCB23 8ST: not on the flood risk listCB23 8SU: not on the flood risk listCB23 8SX: not on the flood risk listCB23 8SY: not on the flood risk listCB23 8SZ: not on the flood risk listCB23 8TE: not on the flood risk listCB23 8TG: not on the flood risk listCB23 8TJ: not on the flood risk listCB23 8TR: not on the flood risk listCB23 8UA: not on the flood risk listCB23 8YW: not on the flood risk listCB23 1LN: low flood risk at worstCB23 3QU: low flood risk at worstCB23 4HY: low flood risk at worstCB23 4JE: low flood risk at worstCB23 4JG: low flood risk at worstCB23 4LT: low flood risk at worstCB23 8ER: low flood risk at worstCB23 8EP: low flood risk at worstCB23 8HB: low flood risk at worstCB23 8HL: low flood risk at worstCB23 8SW: low flood risk at worstCB23 1HT: medium flood risk at worstCB23 3QN: medium flood risk at worstCB23 4JQ: medium flood risk at worstCB23 8SR: medium flood risk at worstCB23 2RJ: high flood riskCB23 2SH: high flood riskCB23 2SS: high flood riskCB23 2ST: high flood riskCB23 2SX: high flood riskCB23 2TT: high flood riskCB23 3PQ: high flood riskCB23 3PW: high flood riskCB23 3TH: high flood riskCB23 3RL: high flood riskCB23 4HX: high flood riskCB23 4LN: high flood riskCB23 4LW: high flood riskCB23 7AE: high flood riskCB23 7BU: high flood riskCB23 7PY: high flood riskCB23 7QS: high flood riskCB23 8SQ: high flood riskCB23 8TU: high flood riskCB23 8UD: high flood risk CambourneCambridgeHiston and ImpingtonGreat Shelford and StaplefordPapworth EverardGirton Map of every postcode in CB23, by flood risk Of the 883 postcodes in CB23 that ONS places, 21 have a home or business at high risk, 5 are at medium risk at worst, 13 are at low risk at worst and 844 are not on the Environment Agency's at-risk list. Places named: Cambourne, Cambridge, Histon and Impington, Great Shelford and Stapleford. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. CambourneCambridgeHiston and ImpingtonGreat Shelford and Stapleford
  • A home or business at high risk: 21
  • At medium risk at worst: 5
  • At low risk at worst: 13
  • At very low risk only: 0
  • Not on the at-risk list: 844

Of the 883 postcodes in CB23 that ONS places, 21 have a home or business at high risk, 5 are at medium risk at worst, 13 are at low risk at worst and 844 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 52.2154, longitude -0.0339. 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

21 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.

CB23 4HX9 at high riskCB23 4LW9 at high riskCB23 2SH8 at high riskCB23 7BU6 at high riskCB23 8SQ6 at high riskCB23 7PY4 at high riskCB23 2TT4 at high riskCB23 3PQ3 at high riskCB23 3TH3 at high riskCB23 8UD3 at high riskCB23 2TJ2 at high riskCB23 3PW2 at high risk

What broadband can you get in CB23?

Ofcom reports on 864 of the 883 postcodes in CB23. At 600 of them every home and business can get gigabit broadband, and at 7 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit600 of 864
Postcodes where every home can get superfast726 of 864
Postcodes where some cannot get decent broadband7 of 864

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 CB23 at risk of flooding?

39 of the 883 postcodes in CB23 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 99 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 39 of 883 postcodes High: 69Medium: 30Low: 93

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 CB23?

Homes in CB23 sold for a typical £390,000 in the 12 months to August 2026, across 368 sales, down 4.7% on the 12 months before, HM Land Registry's figures show.

£390,000 typical price, the 12 months to August 2026
£409,250 12 months to August 2025
▼ down 4.7% on the 12 months before
  • Detached £563,750 156 sales
  • Semi-detached £375,000 94 sales
  • Terraced £321,750 90 sales
  • Flat or maisonette £167,500 28 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 CB23

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

CB23 175 postcodesCB23 273 postcodesCB23 3112 postcodesCB23 462 postcodesCB23 565 postcodesCB23 6189 postcodesCB23 7199 postcodesCB23 8108 postcodes
UK postcode format explained

Places in CB23

Towns and villages with postcodes in CB23, and how many each has here.

Cambourne postcodes,232Papworth Everard postcodes,93Hardwick postcodes,55Bar Hill postcodes,53Highfields Caldecote postcodes,53Cambridge postcodes,1

Who covers CB23

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

  • St Neots and Mid Cambridgeshire644
  • South Cambridgeshire237
  • Cambridge2

Police force areas

  • Cambridgeshire883

Next to CB23

CB22 postcode district CB24 postcode district All CB districts Cambourne postcodes

"Next to" is by number: the districts before and after CB23 in the CB area.

Check a postcode

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