Home Postcodes by state VIC 3143 Postcode 3143 3143 is the postcode for 2 localities in VIC: Armadale and Armadale North. Localities with postcode 3143ArmadaleVICArmadale NorthVIC Postcode 3143 State or territory Victoria (VIC) Localities 2 Council area Stonnington Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3142 · Postcode 3144