Home Postcodes by state WA 6150 Postcode 6150 6150 is the postcode for 3 localities in WA: Bateman, Murdoch and Winthrop. Localities with postcode 6150BatemanWAMurdochWAWinthropWA Postcode 6150 State or territory Western Australia (WA) Localities 3 Council area Melville Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6149 · Postcode 6151