Does CA9 flood?

Yes — parts of the CA9 district carry real flood risk: 5 of its 21 at-risk postcodes reach the Environment Agency's High likelihood band. The CA9 postcode district covers Haltwhistle, close to Alston, Moorhouse, Wearhead, and surrounding villages in parts of Westmorland and Furness and County Durham.

21 postcodes in the CA9 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 5 medium, 11 low. A postcode not listed here has no properties in any recorded risk band (which is good news, but never proof it cannot flood).

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Which CA9 postcodes are at risk?

CA9 3HB up to High CA9 3LU up to High CA9 3NP up to High CA9 3NR up to High CA9 3PE up to High CA9 3BJ up to Medium CA9 3DH up to Medium CA9 3JT up to Medium CA9 3JX up to Medium CA9 3LS up to Medium CA9 3BU up to Low CA9 3DP up to Low CA9 3DS up to Low CA9 3HZ up to Low CA9 3LA up to Low CA9 3LE up to Low CA9 3LQ up to Low CA9 3NT up to Low CA9 3PF up to Low CA9 3RP up to Low CA9 3UH up to Low

Rivers and flooding history near CA9

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

Alston on the River South Tyne — 3.3 km away, highest on record 2.85m
Moorhouse on the Trout Beck — 10.9 km away, highest on record 1.61m
Wearhead on the Killhope Burn — 12.3 km away, highest on record 1.54m
Hindley Wrae Ford on the River West Allen — 14.9 km away, highest on record 2.12m

5 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (5 at warning level or above), most recently 5 December 2015. Warnings cover flood areas, not individual addresses.

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

Alston (2007) — about 3.3 km from the centre
Alston (2005) — about 4.1 km from the centre
Flooding 30_07_2002 (2002) — about 28 km from the centre
River South Tyne (1995) — about 15 km from the centre

🏠 Buying or renting in CA9? 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

CA10 CA8 CA11 CA7 CA12 CA6 CA13 CA5

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.