Home Postcode finder NSW Niagara Park Niagara Park postcode NSW Niagara Park is a locality in New South Wales covered by postcode 2250. Postcode 2250 State or territory New South Wales (NSW) Region Gosford Add a free Niagara Park business listing More business listings in Niagara Park Businesses in Niagara ParkNiagara Park Dental3 16 Washington Ave · +61 2 4329 3003Niagara Park Public SchoolNarara Valley Dr · 02 43283397 Common questionsWhat is the postcode for Niagara Park?Niagara Park, NSW has the postcode 2250.What state is Niagara Park in?Niagara Park is in New South Wales (NSW).Does postcode 2250 cover more than one suburb?Yes. Postcode 2250 covers 34 localities, so the postcode alone does not identify Niagara Park. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.