Home Postcodes by state VIC 3664 Postcode 3664 3664 is the postcode for 2 localities in VIC: Avenel and Upton Hill. Localities with postcode 3664AvenelVICUpton HillVIC Postcode 3664 State or territory Victoria (VIC) Localities 2 Council area Strathbogie Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3663 · Postcode 3665