Home Postcodes by state WA 6230 Postcode 6230 6230 is the postcode for 13 localities in WA: Bunbury, Carey Park, College Grove, Dalyellup, Davenport, East Bunbury and 7 more. Localities with postcode 6230BunburyWACarey ParkWACollege GroveWADalyellupWADavenportWAEast BunburyWAGelorupWAGlen IrisWAPelican PointWASouth BunburyWAUsherWAVittoriaWAWithersWA Postcode 6230 State or territory Western Australia (WA) Localities 13 Council area Bunbury; Capel Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6229 · Postcode 6232