Home Postcodes by state VIC 3791 Postcode 3791 3791 is the postcode for Kallista, VIC. Localities with postcode 3791KallistaVIC Postcode 3791 State or territory Victoria (VIC) Localities 1 Council area Yarra Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3789 · Postcode 3792