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Does Thornaby-on-Tees flood?

Stockton-on-Tees
51postcodes in the EA rivers-and-sea dataset
9river gauges within 10 km
12years with a mapped flood record within 5 km
🏠 Thinking of buying in Thornaby-on-Tees? Get the detailed Property Flood-Risk Report for any Thornaby-on-Tees postcode — official risk band, recorded floods since 1703, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →

What the Environment Agency's rivers-and-sea flood-risk data says about Thornaby-on-Tees

Ordnance Survey places 51 postcodes in Thornaby-on-Tees 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 779 properties in the EA dataset's likelihood bands.

EA likelihood bandPostcodes (worst band)Properties in the EA datasetof which homes
High22226134
Medium10221123
Low18295183
Very low13734
All bands51779474

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 Thornaby-on-Tees

Environment Agency gauges within 10 km of Thornaby-on-Tees watch River Tees, Lustrum Beck, Marton West Beck, Hartburn Beck, Cowbridge Beck, Ormesby Beck, River Leven.

Distances are from the middle of Thornaby-on-Tees'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 Thornaby-on-Tees

The nearest watercourse on the river map is the River Tees, about 480 m from the middle of Thornaby-on-Tees's at-risk postcodes. It flows on to the sea.

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 the River Tees nearest the middle of Thornaby-on-Tees'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 Thornaby-on-Tees

17 Environment Agency flood warning areas lie within 10 km of Thornaby-on-Tees. The EA has issued 155 flood warnings and alerts for them since 2006, most recently on 31 Aug 2026.

Recorded floods near Thornaby-on-Tees

Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of Thornaby-on-Tees, most recent first. Records, not floods: no outline on the record is not evidence a place has not flooded. See them on the map →

…and 9 earlier recorded floods on the map.

Rainfall near Thornaby-on-Tees

Thornaby-on-Tees gets about 624 mm of rain a year on average (wettest month November, 64 mm; driest February, 38 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), 2.4 km from the place centre.

The nearest rain gauge, Rainfall station (6.6 km away), recorded 3.2 mm in the last 24 hours and 23.2 mm in the last 7 days (latest reading 50 min ago).

At-risk postcodes in Thornaby-on-Tees

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

High likelihood (22)

TS17 6BHTS17 6BJTS17 6BNTS17 6BSTS17 6DATS17 6DDTS17 6DFTS17 6DGTS17 6DWTS17 6DYTS17 6ENTS17 6EWTS17 6LDTS17 6LETS17 6PTTS17 6PYTS17 6QPTS17 6QYTS17 7BDTS17 7BGTS17 7BNTS17 7JS

Medium likelihood (10)

TS17 6AJTS17 6BGTS17 6DBTS17 6DTTS17 6FBTS17 6SATS17 7BQTS17 7BSTS17 7BTTS17 7BW

Low likelihood (18)

TS17 6BATS17 6BFTS17 6BLTS17 6BPTS17 6BQTS17 6DPTS17 6ERTS17 6JZTS17 6QNTS17 6QWTS17 6QXTS17 6SBTS17 6SFTS17 6SHTS17 7ARTS17 7BPTS17 7JUTS17 7LD

Very low likelihood (1)

TS17 6SD

Postcode districts

TS17 · 51

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.

All data sources & licences