Westbourne is a village in West Sussex, England.
It is situated within the PO10 postcode district, which is within the Emsworth post town.
PO10 is the only postcode district within the Emsworth post town.
The Emsworth post town is within the Portsmouth postcode area.
Administrative Ward: Westbourne
Administrative District: Chichester
Administrative County: West Sussex
Country: England
UK Parliament: Chichester
NHS Local Health Authority: South East Coast
NHS Region: Southern