Home Postcodes by state NSW 2558 Postcode 2558 2558 is the postcode for 3 localities in NSW: Eagle Vale, Eschol Park and Kearns. Localities with postcode 2558Eagle ValeNSWEschol ParkNSWKearnsNSW Postcode 2558 State or territory New South Wales (NSW) Localities 3 Council area Campbelltown Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2557 · Postcode 2559