Home Postcodes by state VIC 3154 Postcode 3154 3154 is the postcode for The Basin, VIC. Localities with postcode 3154The BasinVIC Postcode 3154 State or territory Victoria (VIC) Localities 1 Council area Knox Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3153 · Postcode 3155