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Does TR21 flood?

Yes — parts of the TR21 district carry real flood risk: 22 of its 32 at-risk postcodes reach the Environment Agency's High likelihood band. The TR21 postcode district covers St Mary's in Isles of Scilly.

32 postcodes in the TR21 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 22 high, 1 medium, 3 low, 6 very 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 TR21 postcodes are at risk?

TR21 0HU up to High TR21 0HY up to High TR21 0JD up to High TR21 0JG up to High TR21 0JJ up to High TR21 0JL up to High TR21 0JQ up to High TR21 0JY up to High TR21 0LJ up to High TR21 0LL up to High TR21 0LN up to High TR21 0LP up to High TR21 0NE up to High TR21 0NF up to High TR21 0NH up to High TR21 0NJ up to High TR21 0NS up to High TR21 0PA up to High TR21 0PL up to High TR21 0PN up to High TR21 0PS up to High TR21 0PT up to High TR21 0LR up to Medium TR21 0HX up to Low TR21 0NA up to Low TR21 0PZ up to Low TR21 0HW up to Very low TR21 0JN up to Very low TR21 0JP up to Very low TR21 0JT up to Very low TR21 0JX up to Very low TR21 0JZ up to Very low

Rivers and flooding history near TR21

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

🏠 Buying or renting in TR21? 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

TR20 TR22 TR19 TR23 TR18 TR24 TR17 TR25

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.