Home Postcode finder NSW Horningsea Park Horningsea Park postcode NSW Horningsea Park is a locality in New South Wales covered by postcode 2171. Postcode 2171 State or territory New South Wales (NSW) Region Ingleburn Add a free Horningsea Park business listing More business listings in Horningsea Park Businesses in Horningsea ParkJohn Edmondson High SchoolHorningsea Park Drive · 02 98259815 Common questionsWhat is the postcode for Horningsea Park?Horningsea Park, NSW has the postcode 2171.What state is Horningsea Park in?Horningsea Park is in New South Wales (NSW).Does postcode 2171 cover more than one suburb?Yes. Postcode 2171 covers 8 localities, so the postcode alone does not identify Horningsea Park. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.