Home Postcodes by state VIC 3275 Postcode 3275 3275 is the postcode for Mailors Flat, VIC. Localities with postcode 3275Mailors FlatVIC Postcode 3275 State or territory Victoria (VIC) Localities 1 Council area Moyne Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3274 · Postcode 3276