Does PO40 flood?

Yes — parts of the PO40 district carry real flood risk: 24 of its 29 at-risk postcodes reach the Environment Agency's High likelihood band. The PO40 postcode district covers Totland & Colwell, close to Freshwater, Yarmouth, Milford, and surrounding villages in parts of Hampshire and Isle of Wight.

29 postcodes in the PO40 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 24 high, 3 low, 2 very low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

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Which PO40 postcodes are at risk?

Rivers and flooding history near PO40

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

Freshwater on the Western Yar — 0.3 km away, highest on record 1.19m
Milford Bridge on the Danes Stream — 7.3 km away, highest on record 1.88m
New Valley Road on the Danes Stream — 7.8 km away, highest on record 0.79m
Chewton Glen on the Walkford Brook — 13.8 km away, highest on record 1.23m

214 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (11 at warning level or above), most recently 20 January 2026. Warnings cover flood areas, not individual addresses.

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

10/03/2008 Yarmouth Harbour (2008) — about 3 km from the centre
06/1999_Western Yar_Freshwater (1999) — about 0.3 km from the centre
S24 Observed Outlines (1900) — about 3.3 km from the centre
General(S24)_Western Yar (1900) — about 0.5 km from the centre

🏠 Buying or renting in PO40? 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

PO41 PO38 PO37 PO36 PO35 PO34 PO33 PO32

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.