Home Postcodes by state WA 6375 Postcode 6375 6375 is the postcode for 6 localities in WA: Adamsvale, Bilbarin, Corrigin, Gorge Rock, Kunjin and Kurrenkutten. Localities with postcode 6375AdamsvaleWABilbarinWACorriginWAGorge RockWAKunjinWAKurrenkuttenWA Postcode 6375 State or territory Western Australia (WA) Localities 6 Council area Corrigin Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6373 · Postcode 6383