Home Postcodes by state VIC 3622 Postcode 3622 3622 is the postcode for 2 localities in VIC: Koyuga and Strathallan. Localities with postcode 3622KoyugaVICStrathallanVIC Postcode 3622 State or territory Victoria (VIC) Localities 2 Council area Campaspe Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3621 · Postcode 3623