Does PO19 flood?

Yes — parts of the PO19 district carry real flood risk: 5 of its 227 at-risk postcodes reach the Environment Agency's High likelihood band. The PO19 postcode district sits close to Chichester, Graylingwell, Bosham and surrounding villages in parts of West Sussex and Hampshire.

227 postcodes in the PO19 district appear in the Environment Agency's rivers-and-sea flood-risk dataset — worst bands: 5 high, 3 medium, 207 low, 12 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 PO19 postcodes are at risk?

PO19 3JN up to High PO19 7JL up to High PO19 7LR up to High PO19 7NN up to High PO19 8TX up to High PO19 3EY up to Medium PO19 3JW up to Medium PO19 7AG up to Medium PO19 1AF up to Low PO19 1AR up to Low PO19 1AT up to Low PO19 1AU up to Low PO19 1BA up to Low PO19 1BE up to Low PO19 1BG up to Low PO19 1BJ up to Low PO19 1BL up to Low PO19 1BP up to Low PO19 1DD up to Low PO19 1DE up to Low PO19 1DF up to Low PO19 1DG up to Low PO19 1DQ up to Low PO19 1DW up to Low PO19 1ED up to Low PO19 1EX up to Low PO19 1HB up to Low PO19 1HW up to Low PO19 1JB up to Low PO19 1JH up to Low PO19 1JL up to Low PO19 1JN up to Low PO19 1JR up to Low PO19 1JT up to Low PO19 1JW up to Low PO19 1LA up to Low PO19 1LQ up to Low PO19 1LS up to Low PO19 1LW up to Low PO19 1NA up to Low PO19 1NJ up to Low PO19 1NL up to Low PO19 1NN up to Low PO19 1NP up to Low PO19 1NQ up to Low PO19 1NR up to Low PO19 1NS up to Low PO19 1NT up to Low PO19 1NW up to Low PO19 1NX up to Low PO19 1NY up to Low PO19 1NZ up to Low PO19 1PB up to Low PO19 1PE up to Low PO19 1PH up to Low PO19 1PR up to Low PO19 1QZ up to Low PO19 1SN up to Low PO19 1UL up to Low PO19 1XB up to Low PO19 2PQ up to Low PO19 2UP up to Low PO19 3BE up to Low PO19 3BG up to Low PO19 3BH up to Low PO19 3BJ up to Low PO19 3BL up to Low PO19 3BQ up to Low PO19 3BS up to Low PO19 3BT up to Low PO19 3BX up to Low PO19 3DA up to Low PO19 3DL up to Low PO19 3DY up to Low PO19 3DZ up to Low PO19 3EB up to Low PO19 3EZ up to Low PO19 3FH up to Low PO19 3HA up to Low PO19 3HB up to Low PO19 3HF up to Low PO19 3JL up to Low PO19 3QF up to Low PO19 3RA up to Low PO19 6AR up to Low PO19 6FB up to Low PO19 6FR up to Low PO19 6XD up to Low PO19 7AA up to Low PO19 7AF up to Low PO19 7AJ up to Low PO19 7AP up to Low PO19 7BA up to Low PO19 7BB up to Low PO19 7BD up to Low PO19 7BG up to Low PO19 7BH up to Low PO19 7BU up to Low PO19 7BX up to Low PO19 7BY up to Low PO19 7BZ up to Low PO19 7DA up to Low PO19 7DB up to Low PO19 7DD up to Low PO19 7DF up to Low PO19 7DH up to Low PO19 7DL up to Low PO19 7DP up to Low PO19 7DR up to Low PO19 7DS up to Low PO19 7DT up to Low PO19 7DU up to Low PO19 7DW up to Low PO19 7DX up to Low PO19 7EJ up to Low PO19 7EN up to Low PO19 7EP up to Low PO19 7ER up to Low PO19 7ET up to Low PO19 7EW up to Low PO19 7GT up to Low PO19 7HG up to Low PO19 7HJ up to Low PO19 7HN up to Low PO19 7HQ up to Low PO19 7HS up to Low PO19 7HU up to Low PO19 7HW up to Low PO19 7HY up to Low PO19 7HZ up to Low PO19 7JA up to Low PO19 7JD up to Low PO19 7JE up to Low PO19 7JF up to Low PO19 7JG up to Low PO19 7JH up to Low PO19 7JJ up to Low PO19 7JP up to Low PO19 7JQ up to Low PO19 7JR up to Low PO19 7JX up to Low PO19 7LG up to Low PO19 7LH up to Low PO19 7LJ up to Low PO19 7LS up to Low PO19 7LT up to Low PO19 7LU up to Low PO19 7PA up to Low PO19 7PD up to Low PO19 7PE up to Low PO19 7PF up to Low PO19 7PG up to Low PO19 7PH up to Low PO19 7PJ up to Low PO19 7PQ up to Low PO19 7PR up to Low PO19 7PW up to Low PO19 7QH up to Low PO19 7QJ up to Low PO19 7QL up to Low PO19 7QS up to Low PO19 7QT up to Low PO19 7SA up to Low PO19 7SH up to Low PO19 7SJ up to Low PO19 7TN up to Low PO19 7TP up to Low PO19 7TR up to Low PO19 7TU up to Low PO19 7TX up to Low PO19 7TY up to Low PO19 7UD up to Low PO19 7UN up to Low PO19 7UP up to Low PO19 7UR up to Low PO19 7US up to Low PO19 7UT up to Low PO19 7UU up to Low PO19 7WR up to Low PO19 7XB up to Low PO19 7XH up to Low PO19 7XL up to Low PO19 7XT up to Low PO19 7XY up to Low PO19 7YA up to Low PO19 7YB up to Low PO19 7YF up to Low PO19 7YL up to Low PO19 7YR up to Low PO19 8AA up to Low PO19 8AB up to Low PO19 8AD up to Low PO19 8AH up to Low PO19 8AL up to Low PO19 8AN up to Low PO19 8AP up to Low PO19 8AW up to Low PO19 8DA up to Low PO19 8DE up to Low PO19 8DF up to Low PO19 8DT up to Low PO19 8EB up to Low PO19 8EN up to Low PO19 8EW up to Low PO19 8EY up to Low PO19 8FD up to Low PO19 8GW up to Low PO19 8HP up to Low PO19 8PB up to Low PO19 8PE up to Low PO19 8PP up to Low PO19 8PQ up to Low PO19 8PX up to Low PO19 8QA up to Low PO19 8RP up to Low PO19 3EH up to Very low PO19 3HR up to Very low PO19 3HS up to Very low PO19 3HZ up to Very low PO19 3QX up to Very low PO19 3RW up to Very low PO19 6EX up to Very low PO19 7UH up to Very low PO19 7YE up to Very low PO19 8HS up to Very low PO19 8HT up to Very low PO19 8JF up to Very low

Rivers and flooding history near PO19

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

378 official flood warnings and alerts have been raised within ~10 km of the district's centre since 2006 (55 at warning level or above), most recently 26 August 2026. Warnings cover flood areas, not individual addresses.

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

🏠 Buying or renting in PO19? 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

PO18 PO20 PO17 PO21 PO16 PO22 PO15 PO14

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.