Home Postcodes by state WA 6281 Postcode 6281 6281 is the postcode for 5 localities in WA: Dunsborough, Eagle Bay, Naturaliste, Quedjinup and Quindalup. Localities with postcode 6281DunsboroughWAEagle BayWANaturalisteWAQuedjinupWAQuindalupWA Postcode 6281 State or territory Western Australia (WA) Localities 5 Council area Busselton Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6280 · Postcode 6282