Home Postcode finder NSW Pinnacle Pinnacle postcode NSW Pinnacle is a locality in New South Wales covered by postcode 2810. Postcode 2810 State or territory New South Wales (NSW) Region NSW Country West Add a free Pinnacle business listing Be the first listing in Pinnacle Common questionsWhat is the postcode for Pinnacle?Pinnacle, NSW has the postcode 2810.What state is Pinnacle in?Pinnacle is in New South Wales (NSW).Does postcode 2810 cover more than one suburb?Yes. Postcode 2810 covers 8 localities, so the postcode alone does not identify Pinnacle. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.