Home Postcodes by state NSW 2174 Postcode 2174 2174 is the postcode for 2 localities in NSW: Edmondson Park and Ingleburn Milpo. Localities with postcode 2174Edmondson ParkNSWIngleburn MilpoNSW Postcode 2174 State or territory New South Wales (NSW) Localities 2 Council area Liverpool Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2173 · Postcode 2175