Home Postcodes by state VIC 3746 Postcode 3746 3746 is the postcode for Eldorado, VIC. Localities with postcode 3746EldoradoVIC Postcode 3746 State or territory Victoria (VIC) Localities 1 Council area Wangaratta Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3744 · Postcode 3747