Home Postcodes by state NSW 2085 Postcode 2085 2085 is the postcode for 3 localities in NSW: Belrose, Belrose West and Davidson. Localities with postcode 2085BelroseNSWBelrose WestNSWDavidsonNSW Postcode 2085 State or territory New South Wales (NSW) Localities 3 Council area Northern Beaches Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2084 · Postcode 2086