Home Postcodes by state WA 6571 Postcode 6571 6571 is the postcode for Yerecoin, WA. Localities with postcode 6571YerecoinWA Postcode 6571 State or territory Western Australia (WA) Localities 1 Council area Victoria Plains Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6569 · Postcode 6572