BN51 postcode district: Brighton and Hove and around

BN51 is a postcode district in England, with 9 postcodes in use in 1 sector. It has postcodes in Brighton and Hove. Its council is Brighton and Hove.

Postcodes in use
9
Sectors
1
Council
Brighton and Hove
Places
Brighton and Hove

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in BN51, by flood risk

Map of every postcode in BN51, by flood risk Of the 9 postcodes in BN51 that ONS places, 9 are not on the Environment Agency's at-risk list. Places named: Rottingdean & West Saltdean. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A259 BN51 9AF: not on the flood risk list Rottingdean & West Saltdean Map of every postcode in BN51, by flood risk Of the 9 postcodes in BN51 that ONS places, 9 are not on the Environment Agency's at-risk list. Places named: Rottingdean & West Saltdean. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 250 m. A259 Rottingdean & West Saltdean
  • A home or business at high risk: 0
  • At medium risk at worst: 0
  • At low risk at worst: 0
  • At very low risk only: 0
  • Not on the at-risk list: 9

Of the 9 postcodes in BN51 that ONS places, 9 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 50.8048, longitude -0.0586. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

Is BN51 at risk of flooding?

None of the 9 postcodes in BN51 is on the Environment Agency's list of postcodes with a home or business in an area at risk of flooding from rivers or the sea.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

Postcodes in BN51

Pick a sector, then a postcode. A sector is the district plus the next digit.

BN51 99 postcodes
UK postcode format explained

Places in BN51

Towns and villages with postcodes in BN51, and how many each has here.

Brighton and Hove postcodes,9

Who covers BN51

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Brighton Kemptown and Peacehaven9

Police force areas

  • Sussex9

Next to BN51

BN50 postcode district BN52 postcode district All BN districts Brighton and Hove postcodes

"Next to" is by number: the districts before and after BN51 in the BN area.

Check a postcode

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