Does Bletchley flood?

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

Ordnance Survey places 20 postcodes in Bletchley 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 82 properties in the EA dataset's likelihood bands.

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 Bletchley

Environment Agency gauges within 10 km of Bletchley watch River Ouzel, Broughton Brook, Clipstone Brook.

• Bletchley
  River Ouzel · 1.1 km away 0.24 m
  normal range · steady · 28 min ago
• Willen
  River Ouzel · 8.5 km away 0.27 m
  normal range · steady · 28 min ago
• Broughton
  Broughton Brook · 8.6 km away 0.11 m
  normal range · steady · 28 min ago
• Clipstone Brook
  Clipstone Brook · 9.3 km away 0.06 m
  normal range · steady · 28 min ago

Distances are from the middle of Bletchley'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.

Flood warning areas near Bletchley

7 Environment Agency flood warning areas lie within 10 km of Bletchley. The EA has issued 76 flood warnings and alerts for them since 2006, most recently on 18 Dec 2025.

• Frensham Drive, Bettina Grove, Doreen Close and Larch Grove in Water Eaton
  10 warnings and alerts since 2006, latest Jan 2025 0.8 km
• Mill Road, Watling Street and Belvedere Lane in Bletchley
  13 warnings and alerts since 2006, latest Nov 2024 3.2 km
• Globe Lane in Leighton Buzzard, Stapleford Mill, Bragenham Side in Stoke Hammond and Mill Lane in Great Brickhill
  10 warnings and alerts since 2006, latest Sep 2024 5.1 km
• 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 6.4 km
• River Ouzel from Leighton Buzzard to Willen, including Clipstone Brook and Water Eaton Brook
  20 warnings and alerts since 2006, latest Dec 2025 6.8 km
• Aries Court, Nebular Court, Carina Drive, Hockcliffe Road, Waterdell, Clipstone Brook Lower School, South Street, Lovent Drive, Steppingstone Place, Billington Road and Grovebury Road in Leighton Buzzard
  9 warnings and alerts since 2006, latest Sep 2024 9.0 km
• Hydrus & Columba Drive, Phoenix Close, Willow Bank, Nebular Court, Carina Drive, Brookside Walk, Hockliffe Road, Capshill Avenue, Waterdell, Woodman Close, Stepping Stone Place, Linwood Grove, Billington Road and Lindler Court in Leighton Buzzard
  8 warnings and alerts since 2006, latest Sep 2024 9.2 km

Recorded floods near Bletchley

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Bletchley, 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 1947 — March 1947

Rainfall near Bletchley

Bletchley gets about 632 mm of rain a year on average (wettest month October, 66 mm; driest March, 39 mm). That is 46% drier than the UK as a whole, which averages 1,163 mm a year. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 0.4 km from the place centre.

The nearest rain gauge, Rainfall station (4.4 km away), recorded 0.0 mm in the last 24 hours and 1.2 mm in the last 7 days (latest reading 28 min ago).

At-risk postcodes in Bletchley

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

High likelihood (4)

Medium likelihood (5)

Low likelihood (11)

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.