Home Postcodes by state VIC 3813 Postcode 3813 3813 is the postcode for 2 localities in VIC: Tynong and Tynong North. Localities with postcode 3813TynongVICTynong NorthVIC Postcode 3813 State or territory Victoria (VIC) Localities 2 Council area Cardinia Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3812 · Postcode 3814