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Does CB23 flood?

Yes — parts of the CB23 district carry real flood risk: 21 of its 41 at-risk postcodes reach the Environment Agency's High likelihood band. The CB23 postcode district covers Caxton & Papworth, Bar Hill, Caldecote, Harston & Comberton, close to Bourn, Oakington, Comberton, and surrounding villages in Cambridgeshire.

41 postcodes in the CB23 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 21 high, 5 medium, 15 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which CB23 postcodes are at risk?

CB23 2RJ up to High CB23 2SH up to High CB23 2SS up to High CB23 2ST up to High CB23 2SX up to High CB23 2TJ up to High CB23 2TT up to High CB23 3PQ up to High CB23 3PW up to High CB23 3RL up to High CB23 3TH up to High CB23 4HX up to High CB23 4LN up to High CB23 4LW up to High CB23 7AE up to High CB23 7BU up to High CB23 7PY up to High CB23 7QS up to High CB23 8SQ up to High CB23 8TU up to High CB23 8UD up to High CB23 1HT up to Medium CB23 3QN up to Medium CB23 3RJ up to Medium CB23 4JQ up to Medium CB23 8SR up to Medium CB23 1LN up to Low CB23 3QU up to Low CB23 4HT up to Low CB23 4HY up to Low CB23 4JE up to Low CB23 4JG up to Low CB23 4LT up to Low CB23 8DR up to Low CB23 8EP up to Low CB23 8ER up to Low CB23 8HA up to Low CB23 8HB up to Low CB23 8HL up to Low CB23 8SG up to Low CB23 8SW up to Low

Rivers and flooding history near CB23

The rivers that matter here, each monitored live on FloodRadar:

114 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (15 at warning level or above), most recently 6 February 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in CB23? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

CB22 CB24 CB21 CB25 CB11 CB10 CB9 CB8

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © Environment Agency copyright and/or database right 2025. All rights reserved. Some features of this map are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH). © Crown Copyright and Database Rights 2025 OS AC0000807064. This product is produced in part from PAF® and Multiple Residence Data, the copyright in which is owned by Royal Mail Group Limited and/or Royal Mail Group plc. All rights reserved. Licence number AC0000807064.