Home Postcodes by state VIC 3904 Postcode 3904 3904 is the postcode for Metung, VIC. Localities with postcode 3904MetungVIC Postcode 3904 State or territory Victoria (VIC) Localities 1 Council area East Gippsland Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3903 · Postcode 3909