Home Postcodes by state VIC 3584 Postcode 3584 3584 is the postcode for 2 localities in VIC: Lake Boga and Tresco West. Localities with postcode 3584Lake BogaVICTresco WestVIC Postcode 3584 State or territory Victoria (VIC) Localities 2 Council area Swan Hill Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3583 · Postcode 3585