Home Postcode finder NSW Mount Elliot Mount Elliot postcode NSW Mount Elliot 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 Mount Elliot business listing Be the first listing in Mount Elliot Common questionsWhat is the postcode for Mount Elliot?Mount Elliot, NSW has the postcode 2250.What state is Mount Elliot in?Mount Elliot 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 Mount Elliot. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.