Home Postcodes by state VIC 3446 Postcode 3446 3446 is the postcode for 2 localities in VIC: Drummond North and Malmsbury. Localities with postcode 3446Drummond NorthVICMalmsburyVIC Postcode 3446 State or territory Victoria (VIC) Localities 2 Council area Hepburn; Macedon Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3444 · Postcode 3447