Home Postcodes by state WA 6341 Postcode 6341 6341 is the postcode for Nyabing, WA. Localities with postcode 6341NyabingWA Postcode 6341 State or territory Western Australia (WA) Localities 1 Council area Kent Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6338 · Postcode 6343