Does LN9 flood?

Yes — parts of the LN9 district carry real flood risk: 16 of its 68 at-risk postcodes reach the Environment Agency's High likelihood band. The LN9 postcode district covers Horncastle, Roughton, Tetford & Donington, close to Kirkby On Bain, Goulceby, Revesby, and surrounding villages in Lincolnshire.

68 postcodes in the LN9 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 16 high, 17 medium, 26 low, 9 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 LN9 postcodes are at risk?

LN9 5BW up to High LN9 5HU up to High LN9 5HZ up to High LN9 5JE up to High LN9 5LX up to High LN9 5PD up to High LN9 5QQ up to High LN9 5RS up to High LN9 5RT up to High LN9 5RZ up to High LN9 6JD up to High LN9 6JH up to High LN9 6PN up to High LN9 6PZ up to High LN9 6QQ up to High LN9 6QX up to High LN9 5BA up to Medium LN9 5DG up to Medium LN9 5DN up to Medium LN9 5DR up to Medium LN9 5EE up to Medium LN9 5HL up to Medium LN9 5HW up to Medium LN9 5JB up to Medium LN9 5JD up to Medium LN9 5JF up to Medium LN9 5SB up to Medium LN9 5ST up to Medium LN9 6AA up to Medium LN9 6AP up to Medium LN9 6JG up to Medium LN9 6QF up to Medium LN9 6QR up to Medium LN9 5AD up to Low LN9 5AX up to Low LN9 5AZ up to Low LN9 5DD up to Low LN9 5DW up to Low LN9 5EQ up to Low LN9 5HA up to Low LN9 5HB up to Low LN9 5HD up to Low LN9 5HF up to Low LN9 5HJ up to Low LN9 5HP up to Low LN9 5HY up to Low LN9 5JA up to Low LN9 5NW up to Low LN9 5PN up to Low LN9 5PP up to Low LN9 5PU up to Low LN9 5PW up to Low LN9 5QF up to Low LN9 5SA up to Low LN9 6AZ up to Low LN9 6HP up to Low LN9 6JF up to Low LN9 6JQ up to Low LN9 6JU up to Low LN9 5AF up to Very low LN9 5AT up to Very low LN9 5BJ up to Very low LN9 5DF up to Very low LN9 5DS up to Very low LN9 5HH up to Very low LN9 5HS up to Very low LN9 5JG up to Very low LN9 6HU up to Very low

Rivers and flooding history near LN9

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

82 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (18 at warning level or above), most recently 1 March 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in LN9? 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

LN10 LN8 LN11 LN7 LN12 LN6 LN13 LN5

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.