Home Postcodes by state WA 6392 Postcode 6392 6392 is the postcode for 4 localities in WA: Bokal, Dardadine, Darkan and Meeking. Localities with postcode 6392BokalWADardadineWADarkanWAMeekingWA Postcode 6392 State or territory Western Australia (WA) Localities 4 Council area West Arthur; Williams Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6391 · Postcode 6393