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Does Waterlooville flood?

Hampshire
36postcodes in the EA rivers-and-sea dataset
8river gauges within 10 km
5years with a mapped flood record within 5 km
🏠 Thinking of buying in Waterlooville? Get the detailed Property Flood-Risk Report for any Waterlooville postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

Flood warnings in force near Waterlooville

From the Environment Agency (England). Always check the GOV.UK Check for Flooding service or call Floodline on 0345 988 1188.

What the Environment Agency's rivers-and-sea flood-risk data says about Waterlooville

Ordnance Survey places 36 postcodes in Waterlooville in the Environment Agency's rivers-and-sea flood-risk dataset (Risk of Flooding from Rivers and Sea). Each postcode is counted once, under the worst band any of its properties reaches; together they hold 245 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High179066
Medium32928
Low1511590
Very low1110
All bands36245184

This dataset covers flooding from rivers and the sea only — one of five flood sources. Surface water, groundwater, sewers and reservoirs are assessed separately, so a postcode missing from it is not proof that a place cannot flood. The band describes the land around properties (allowing for defences), not any single address and not today's conditions.

Rivers and live river levels near Waterlooville

Environment Agency gauges within 10 km of Waterlooville watch River Wallington, Hermitage Stream, River Lavant, West Brook, River Ems, River Meon.

Distances are from the middle of Waterlooville's at-risk postcodes. Tidal and structure gauges are shown as readings only — the tide and sluice gates move them, not floods. A gauge with no recent reading shows no level.

The watercourse nearest Waterlooville

The nearest watercourse on the river map is Wallington River, about 520 m from the middle of Waterlooville's at-risk postcodes. It flows on to the sea.

A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on Wallington River nearest the middle of Waterlooville's at-risk postcodes. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.

Flood warning areas near Waterlooville

28 Environment Agency flood warning areas lie within 10 km of Waterlooville. The EA has issued 579 flood warnings and alerts for them since 2006, most recently on 26 Oct 2026.

Recorded floods near Waterlooville

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Waterlooville, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

…and 1 earlier recorded flood on the map.

Rainfall near Waterlooville

Waterlooville gets about 949 mm of rain a year on average (wettest month November, 113 mm; driest May, 51 mm). That is 18% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.2 km from the place centre.

The nearest rain gauge, Rainfall station (4.7 km away), recorded 4.3 mm in the last 24 hours and 110.8 mm in the last 7 days (latest reading 30 min ago).

At-risk postcodes in Waterlooville

Every postcode Ordnance Survey places in Waterlooville that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.

High likelihood (17)

PO7 3DUPO7 7FLPO7 7FNPO7 7FRPO7 7FSPO7 7FTPO7 7GAPO7 7GBPO7 7GEPO7 7GGPO7 7GHPO7 7GJPO7 7GLPO7 7QFPO7 7THPO7 7XNPO7 7XY

Medium likelihood (3)

PO7 7GFPO7 7GZPO7 7QY

Low likelihood (15)

PO7 6ASPO7 6UTPO7 6XAPO7 6XBPO7 7BNPO7 7HDPO7 7JSPO7 7PUPO7 7PXPO7 7PYPO7 7SZPO7 7TPPO7 7TTPO7 7XTPO7 8QQ

Very low likelihood (1)

PO7 7XU

Postcode districts

PO7 · 36

Sources

FloodRadar summarises public flood data. It is not a flood-risk survey of any property, and it does not replace official GOV.UK flood warnings or the GOV.UK long-term flood risk service.

Flood-risk bands: © 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.

Recorded Flood Outlines, flood warning areas and warning history © Environment Agency copyright and/or database right 2025. Licensed under the Open Government Licence v3.0.

River levels and rainfall: Environment Agency real-time flood-monitoring data, updated every 15 minutes (Open Government Licence v3.0).

Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.

Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.

All data sources & licences