Home Postcodes by state WA 6034 Postcode 6034 6034 is the postcode for Eglinton, WA. Localities with postcode 6034EglintonWA Postcode 6034 State or territory Western Australia (WA) Localities 1 Council area Wanneroo Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6033 · Postcode 6035