The BN23 5 postcode sector is within the county of East Sussex in the South East of England.
BN23 5 is a postcode sector within the BN23 postcode district which is within the BN Brighton postcode area.
The Royal Mail delivery office for the BN23 5 postal sector is the Westham Delivery Office.
The area of the BN23 5 postcode sector is 0.42 square miles which is 1.08 square kilometres or 265.92 square acres.
Waterways within the BN23 5 postcode sector include the Sovreign Harbour.
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