Home Postcodes by state WA 6346 Postcode 6346 6346 is the postcode for 4 localities in WA: Fitzgerald River National Park, Jerdacuttup, Ravensthorpe and West River. Localities with postcode 6346Fitzgerald River National ParkWAJerdacuttupWARavensthorpeWAWest RiverWA Postcode 6346 State or territory Western Australia (WA) Localities 4 Council area Jerramungup; Ravensthorpe Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6343 · Postcode 6348