Home Postcodes by state WA 6015 Postcode 6015 6015 is the postcode for City Beach, WA. Localities with postcode 6015City BeachWA Postcode 6015 State or territory Western Australia (WA) Localities 1 Council area Cambridge Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6014 · Postcode 6016