Home Postcodes by state WA 6515 Postcode 6515 6515 is the postcode for 4 localities in WA: Coorow, Eganu, Marchagee and Waddy Forest. Localities with postcode 6515CoorowWAEganuWAMarchageeWAWaddy ForestWA Postcode 6515 State or territory Western Australia (WA) Localities 4 Council area Coorow Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6514 · Postcode 6516