Does PO17 flood?

Yes — parts of the PO17 district carry real flood risk: 5 of its 19 at-risk postcodes reach the Environment Agency's High likelihood band. The PO17 postcode district covers Southwick and Wickham, Central Meon Valley, close to Wickham, Wallington, Mislingford, and surrounding villages in parts of Hampshire and England.

19 postcodes in the PO17 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 6 medium, 8 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 PO17 postcodes are at risk?

PO17 5AJ up to High PO17 5AZ up to High PO17 5DD up to High PO17 5DE up to High PO17 5ND up to High PO17 5HE up to Medium PO17 5JE up to Medium PO17 5JH up to Medium PO17 5LL up to Medium PO17 5NW up to Medium PO17 6AA up to Medium PO17 5DF up to Low PO17 5NB up to Low PO17 5PX up to Low PO17 6DW up to Low PO17 6DZ up to Low PO17 6EP up to Low PO17 6JL up to Low PO17 6LZ up to Low

Rivers and flooding history near PO17

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

Wickham on the River Meon — 1.3 km away, highest on record 20.00m
NORTH FAREHAM GS — 3 km away
MISLINGFORD GS — 3.7 km away
Mislingford on the River Meon — 3.7 km away, highest on record 0.88m

432 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (66 at warning level or above), most recently 18 March 2026. Warnings cover flood areas, not individual addresses.

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

East Hampshire Winter 13/14 (2014) — about 9 km from the centre
Bridge Street, Wickham, Winter 13/14 (2014) — about 1.3 km from the centre
Winter 2000/01g_Turkey Island_Shedfield (2000) — about 3.8 km from the centre
06/11/2000_River Meon_Aerial(78) (2000) — about 1.5 km from the centre

🏠 Buying or renting in PO17? 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

PO16 PO18 PO15 PO19 PO14 PO20 PO13 PO21

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.