Home Postcodes by state VIC 3042 Postcode 3042 3042 is the postcode for 3 localities in VIC: Airport West, Keilor Park and Niddrie. Localities with postcode 3042Airport WestVICKeilor ParkVICNiddrieVIC Postcode 3042 State or territory Victoria (VIC) Localities 3 Council area Moonee Valley; Brimbank Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3041 · Postcode 3043