Clevedon Flood Risk
Clevedon has a Very low flood risk from rivers and the sea , with 0.2% of homes in a Medium or High band. The nearest gauge is 7.6 km away.
Clevedon has 21,193 residents and 10,507 homes. Ranked 2787 of 7,114 in England for rivers and sea flood risk.
What Is The River Level Near Clevedon Right Now?
The nearest gauge is Wraxall, 7.6 km from the centre of Clevedon, at Wraxall Nailsea. Its typical range is 0.055 m to 0.6 m, and the highest level on record is 0.861 m, reached on 15 November 2025.
No current reading has been published for this gauge.
This river has too few gauges for its own page
Why Are Parts Of Clevedon In Flood Zone 3 But Rated Low Risk?
64% of postcodes in Clevedon fall in Flood Zone 3, but the flood risk band for rivers and the sea is verylow. The two maps measure different things: the Flood Zone ignores defences, and the band counts them.
When Has Clevedon Flooded Before?
The Environment Agency holds 1 recorded flood outlines covering Clevedon, the most recent dated 15 December 1981.
Absence of a record is not evidence that a place has never flooded — the Environment Agency states that a lack of coverage does not mean an area has never flooded.
What Does Clevedon's Flood Risk Classification Mean?
64% of postcodes in Clevedon sit in Flood Zone 3, the planning band for land with a 1% or greater annual chance of river flooding or 0.5% or greater of sea flooding — and the map that draws it deliberately ignores flood defences.
The flood risk band for rivers and the sea is Very low , with 0.2% of homes in a Medium or High band. Unlike the Flood Zone, the band counts the defences that are actually in place, which is why the two can describe the same street differently and both be right.
Clevedon is one of the places where they disagree most in England: a large share of its postcodes are in Flood Zone 3, yet few of its homes carry a Medium or High band. The gap is the defences — land the planning map must treat as floodplain, behind a barrier that lowers the present-day chance of flooding.
Which Postcode Districts Cover Clevedon?
Each district below is one postcode district that falls inside Clevedon. The band is the one shared by most of that district's postcodes, so it describes the district rather than a single street — enter a full postcode in the checker for one address. A district can cover more than one town, and the district pages linked from the checker are keyed to the town that holds most of its postcodes.
| Postcode district | Postcodes here | Rivers and sea band | Surface water addresses |
|---|---|---|---|
| BS21 | 573 | Low | 1,487 |