UK Flood Statistics 2026

Flooding is the UK's most significant natural hazard. The Environment Agency estimates that 5.7 million properties in England are at risk of flooding from rivers, sea or surface water. Climate change is projected to increase this risk by up to 59% by 2050.

The average annual cost of flooding in England is approximately £1.7 billion in property damage and disruption. Surface water flooding (from intense rainfall overwhelming drainage systems) is the fastest-growing flood risk.

The government has committed £5.2 billion to flood and coastal defence investment between 2021 and 2027, aiming to better protect 336,000 properties.

How many properties are at risk of flooding in the UK?

Approximately 5.7 million properties in England are at some risk of flooding. Of these, around 200,000 are at high risk (1 in 30 chance of flooding in any year). Surface water flooding affects 3.3 million properties.

Is UK flooding getting worse?

Yes. The UK is experiencing more intense rainfall events due to climate change. The Environment Agency projects flood risk could increase by 59% by 2050 under a high-emissions scenario.

How much does flooding cost the UK each year?

The average annual cost of flooding in England is approximately £1.7 billion in direct damage. Indirect costs can double this figure. Major events are far more costly — the 2007 floods cost around £4 billion.

Can I check if my property is at flood risk?

Yes — the Environment Agency's flood risk map is freely available at check-long-term-flood-risk.service.gov.uk. You can enter your postcode to see your property's flood risk from rivers, sea and surface water.

What is being done to reduce UK flood risk?

The government committed £5.2 billion to flood and coastal defence between 2021-27. This includes river defences, sustainable urban drainage systems (SUDS) and natural flood management.