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