Does SN5 flood?

Yes — parts of the SN5 district carry real flood risk: 14 of its 36 at-risk postcodes reach the Environment Agency's High likelihood band. The SN5 postcode district covers Mannington and Western, Purton, Shaw, Lydiard and Freshbrook, close to Haydon Wick, Swindon, Purton Stoke, and surrounding villages in parts of Wiltshire and Swindon.

36 postcodes in the SN5 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 14 high, 4 medium, 18 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

Free preview first · full report £19

Which SN5 postcodes are at risk?

SN5 0AA up to High SN5 3PA up to High SN5 3PN up to High SN5 4JN up to High SN5 4JW up to High SN5 4LA up to High SN5 5UR up to High SN5 6NF up to High SN5 6NG up to High SN5 7DA up to High SN5 7DB up to High SN5 8WD up to High SN5 8ZG up to High SN5 8ZQ up to High SN5 4JB up to Medium SN5 4JF up to Medium SN5 5BP up to Medium SN5 7YQ up to Medium SN5 4JE up to Low SN5 4JQ up to Low SN5 5DZ up to Low SN5 5FB up to Low SN5 7AD up to Low SN5 7AX up to Low SN5 7AY up to Low SN5 7BA up to Low SN5 7BG up to Low SN5 7BQ up to Low SN5 7BX up to Low SN5 7BY up to Low SN5 7DF up to Low SN5 7UJ up to Low SN5 7YF up to Low SN5 7YS up to Low SN5 7YT up to Low SN5 8YG up to Low

Rivers and flooding history near SN5

The rivers that matter here, each monitored live on FloodRadar:

Rodbourne on the River Ray — 1.2 km away, highest on record 2.46m
Rushey Platt on the River Ray — 3 km away, highest on record 2.19m
Purton Stoke on the River Key — 5.3 km away, highest on record 2.34m
Lower Stratton on the River Cole — 6.8 km away, highest on record 4.30m

117 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (6 at warning level or above), most recently 9 February 2026. Warnings cover flood areas, not individual addresses.

Recorded flood extents near the district (Environment Agency record):

Westlea_Fluvial Water (2007) — about 1.7 km from the centre
Westlea_Surface Water (2007) — about 1.7 km from the centre
Rodbourne_fluvial (2006) — about 1.2 km from the centre
June 1971 flooding — about 1.2 km from the centre

🏠 Buying or renting in SN5? The full property flood-risk report covers any postcode here — the official likelihood band, every recorded flood nearby with distances, warning history year by year, how the local rivers behave, and an insurance outlook, print-ready for £19. See what's in the report →

Flood risk in nearby postcode districts

SN4 SN6 SN3 SN7 SN2 SN8 SN1 SN9

Band = the worst likelihood band of any property in that postcode (EA Risk of Flooding from Rivers & Sea, defence-adjusted, area-level). Check any postcode in detail — or get the full £19 property report — at the property flood-risk report. © 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.