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