floodchecker

POSTCODES IN IP26

341 postcodes checked

Some river/sea risk
Flood Zone 3
5.6% · 19
Flood Zone 2
1.2% · 4
Flood Zone 1
93% · 318

Rivers and the sea, Environment Agency Flood Map for Planning. Counts postcodes, not homes.

Flood risk in IP26 (Feltwell)

Of the 341 postcodes in IP26 – covering Feltwell, Hockwold cum Wilton and Methwold – 19 (5.6%) have their centre in Flood Zone 3 and 4 (1.2%) in Flood Zone 2, on the Environment Agency’s Flood Map for Planning.

The Zone 3 share is close to the England average of 5.6%, and below the Norfolk figure of 7.8%.

Most of the district is in Flood Zone 1, but the postcodes in Zones 2 and 3 tend to cluster along rivers, streams and low-lying ground – so it’s worth checking the exact postcode rather than relying on the district picture.

Flood zones only cover rivers and the sea, and ignore flood defences. Surface water from heavy rain can affect any street, including in Zone 1.

Flood zones by postcode sector

Each sector is the first part of the postcode plus the first digit after the space. IP26 4 has the highest share in Flood Zone 3 (8.1% of its postcodes).

Postcodes in Flood Zones 2 and 3, by postcode sector in IP26
SectorPostcodesZone 3Zone 2
IP26 42098.1%1.9%
IP26 51321.5%0%

Main rivers in Norfolk

  • River Yare – Norwich and Great Yarmouth

  • River Wensum – Fakenham and Norwich

  • River Bure – Aylsham, Wroxham and the northern Broads

More on the area in our Norfolk flood risk guide.

How these figures are worked out

We took the centre point of every live postcode in IP26 from OS Code-Point Open and tested it against the Environment Agency’s Flood Map for Planning, as published in the flood-risk-zone dataset (version of 5 November 2026). A postcode counts once, whether it has one home or forty, and a postcode whose centre is just outside a zone still counts as Zone 1. Updated November 2026.

For one address, the free postcode check looks at the zones around the postcode, and the full report adds surface water, reservoirs, recorded floods and defences.

FAQ

IP26 flood questions

Parts of it are. 5.6% of postcodes in IP26 are in Flood Zone 3 and 1.2% in Flood Zone 2. The rest is in Flood Zone 1. Check your full postcode to see the zone around your street.

Check a IP26 postcode

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