Home Postcodes by state NSW 2500 Postcode 2500 2500 is the postcode for 11 localities in NSW: Coniston, Gwynneville, Keiraville, Mangerton, Mount Keira, Mount Saint Thomas and 5 more. Localities with postcode 2500ConistonNSWGwynnevilleNSWKeiravilleNSWMangertonNSWMount KeiraNSWMount Saint ThomasNSWNorth WollongongNSWSpring HillNSWWest WollongongNSWWollongongNSWWollongong WestNSW Postcode 2500 State or territory New South Wales (NSW) Localities 11 Council area Wollongong Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2490 · Postcode 2502