Does NN8 flood?

Yes — parts of the NN8 district carry real flood risk: 15 of its 55 at-risk postcodes reach the Environment Agency's High likelihood band. The NN8 postcode district covers Victoria, Croyland & Swanspool, Hatton Park, Irchester, close to Great Harrowden, Barton Seagrave, Cogenhoe, and surrounding villages in parts of North Northamptonshire and West Northamptonshire.

55 postcodes in the NN8 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 15 high, 7 medium, 19 low, 14 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).

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Which NN8 postcodes are at risk?

NN8 1GG up to High NN8 1QW up to High NN8 1RG up to High NN8 1RL up to High NN8 1RR up to High NN8 2BF up to High NN8 2DP up to High NN8 2DT up to High NN8 2LW up to High NN8 2LY up to High NN8 2LZ up to High NN8 2UE up to High NN8 4NL up to High NN8 5ZA up to High NN8 6AD up to High NN8 1JN up to Medium NN8 1LD up to Medium NN8 1NP up to Medium NN8 1RA up to Medium NN8 4BA up to Medium NN8 4BB up to Medium NN8 4BL up to Medium NN8 1BL up to Low NN8 1FA up to Low NN8 1FE up to Low NN8 1NW up to Low NN8 2BJ up to Low NN8 2EA up to Low NN8 2ED up to Low NN8 2EF up to Low NN8 2LE up to Low NN8 2PN up to Low NN8 2PZ up to Low NN8 2QH up to Low NN8 4BH up to Low NN8 4BS up to Low NN8 4HN up to Low NN8 4HQ up to Low NN8 4SR up to Low NN8 5BL up to Low NN8 6DH up to Low NN8 1BS up to Very low NN8 1BZ up to Very low NN8 1LS up to Very low NN8 1NJ up to Very low NN8 1NS up to Very low NN8 1NX up to Very low NN8 1NY up to Very low NN8 1PD up to Very low NN8 1SD up to Very low NN8 1SE up to Very low NN8 1XB up to Very low NN8 2AU up to Very low NN8 2BT up to Very low NN8 2UJ up to Very low

Rivers and flooding history near NN8

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

GREAT HARROWDEN GS — 3.4 km away
Harrowden on the River Ise — 3.7 km away, highest on record 1.61m
Slade Brook on the River Ise — 8.8 km away, highest on record 2.07m
Cogenhoe on the River Nene — 8.9 km away, highest on record 1.24m

236 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (97 at warning level or above), most recently 3 March 2026. Warnings cover flood areas, not individual addresses.

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

LNA_1998_April_River Ise (1998) — about 10.2 km from the centre
LNA_1998_April_River Nene_d/s Northampton (1998) — about 10.7 km from the centre
LNA_1947_March_Swanspool Brook (1947) — about 0.1 km from the centre
LNA_1947_March_River Nene_d/s Northampton (1947) — about 10.9 km from the centre

Records, not floods: no outline on the record is not evidence a place has not flooded.

🏠 Buying or renting in NN8? 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

NN7 NN9 NN10 NN6 NN11 NN5 NN12 NN4

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.