Does Milton Keynes flood?
What the Environment Agency's rivers-and-sea flood-risk data says about Milton Keynes
Ordnance Survey places 118 postcodes in Milton Keynes 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 943 properties in the EA dataset's likelihood bands.
| EA likelihood band | Postcodes (worst band) | Properties in the EA dataset | of which homes |
|---|---|---|---|
| High | 17 | 125 | 102 |
| Medium | 17 | 96 | 85 |
| Low | 78 | 677 | 622 |
| Very low | 6 | 45 | 39 |
| All bands | 118 | 943 | 848 |
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 Milton Keynes
Environment Agency gauges within 10 km of Milton Keynes watch River Ouzel, Broughton Brook, River Great Ouse.
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Willen
River Ouzel · 2.9 km away 0.39 m
normal range · 40 min ago -
Broughton
Broughton Brook · 3.1 km away 0.19 m
normal range · 40 min ago -
Bletchley
River Ouzel · 5.8 km away 0.33 m
normal range · steady · 40 min ago -
Newport Pagnell Cemetery
River Great Ouse · 6.1 km away 0.75 m
normal range · falling · 40 min ago -
Newport Pagnell
River Great Ouse · 6.2 km away 0.39 m
normal range · 40 min ago -
Haversham
River Great Ouse · 7.0 km away 0.77 m
normal range · 40 min ago -
Passenham
River Great Ouse · 8.9 km away No recent reading -
Stony Stratford
River Great Ouse · 9.2 km away 0.14 m
normal range · 55 min ago
Distances are from the middle of Milton Keynes'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 Milton Keynes
The nearest watercourse on the river map is an unnamed stream, about 140 m from the middle of Milton Keynes's at-risk postcodes. It flows into the River Ouzel about 480 m downstream.
- Next gauge downstreamWillen on the River Ouzel, about 3.6 km along the river.
Normal · easing · 40 min ago
After that, Olney, about 22 km along the river. - Storm overflows9 storm overflows are traced upstream of Willen on the river map. See them on its page.
- Nearest gauge upstreamNone on the river map within 30 km upstream.
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 an unnamed stream nearest the middle of Milton Keynes'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 Milton Keynes
10 Environment Agency flood warning areas lie within 10 km of Milton Keynes. The EA has issued 70 flood warnings and alerts for them since 2006, most recently on 17 Feb 2026.
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Millholm Rise and Simpson Road in Simpson, Walton Hall, Mill Lane in Woolstone, Woodall Close, Powell Haven, Bereville Court and Savage Croft in Middleton and Milton Road in Willen
6 warnings and alerts since 2006, latest Sep 2024 0.9 km -
Mill Road, Watling Street and Belvedere Lane in Bletchley
13 warnings and alerts since 2006, latest Nov 2024 3.2 km -
Frensham Drive, Bettina Grove, Doreen Close and Larch Grove in Water Eaton
10 warnings and alerts since 2006, latest Jan 2025 4.9 km -
Dulwich Close, Tabard Gardens, Alexandra Drive, Richmond Way, Bowes Close, Caldecote Street, Silver Street, Mill Street, Lakes Lane, Dovecote, Park Avenue, Broad Street, Tickford Street, Priory Street and Kingston House in Newport Pagnell
5 warnings and alerts since 2006, latest Nov 2024 5.7 km -
Alexandra Drive, Ranelagh Gardens, Gladstone Close, Osterley Close, Glenwoods, Station Road, High Street, Wolverton Road, Westbury Lane, Lakes Lane, Willen Road, Mill Street, Tickford Street and Priory Street in Newport Pagnell
7 warnings and alerts since 2006, latest Nov 2024 6.2 km -
Newport Road and Wooton Court in New Bradwell, Haversham Road and Haversham Mill in Haversham
6 warnings and alerts since 2006, latest Nov 2024 6.3 km -
St Pauls Court, Prospect Road, Willow Lane, High Street, Queen Eleanor Street, Temperance Terrace, Fegan's Court and Ostlers Lane in Stony Stratford, Watermill Lane in Wolverton and Cosgrove Leisure Park.
3 warnings and alerts since 2006, latest Nov 2024 9.0 km -
Horn Lane, Willow Lane, Mill Lane, High Street, Fegan's Court, St Paul's Court, Ostlers Lane, Magdelen Close and Queen Eleanor Street
1 warning or alert since 2006, latest Nov 2024 9.1 km -
Caldecote Lane, Willen Road, River Side, Toll House, Woad Farm, Sherington Road and Gallards Farm in Newport Pagnell, and Ravenstone Mill in Ravenstone
11 warnings and alerts since 2006, latest Nov 2024 9.1 km -
River Great Ouse from Thornborough to Newport Pagnell, including Dogsmouth Brook
8 warnings and alerts since 2006, latest Feb 2026 10.0 km
Recorded floods near Milton Keynes
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Milton Keynes, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →
- 1 Jan 1998 — Easter 1998
- 1 Jan 1992 — September 1992 River
- 1 Jan 1980 — August 1980 River
- 1 Jul 1968 — July 1968 Ordinary watercourse
- 1 Jan 1968 — September 1968 River
- 1 Jan 1947 — March 1947
Rainfall near Milton Keynes
Milton Keynes gets about 638 mm of rain a year on average (wettest month October, 67 mm; driest March, 41 mm). That is 45% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 0.5 km from the place centre.
The nearest rain gauge, Rainfall station (7.5 km away), recorded 0.2 mm in the last 24 hours and 51.6 mm in the last 7 days (latest reading 55 min ago).
At-risk postcodes in Milton Keynes
Every postcode Ordnance Survey places in Milton Keynes that appears in the EA's rivers-and-sea dataset, worst band first. Each links to its own flood-risk page.
High likelihood (17)
Medium likelihood (17)
Low likelihood (78)
Very low likelihood (6)
Postcode districts
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.