Home Postcode finder NSW Mumbulla Mountain Mumbulla Mountain postcode NSW Mumbulla Mountain is a locality in New South Wales covered by postcode 2550. Postcode 2550 State or territory New South Wales (NSW) Region NSW Country West Add a free Mumbulla Mountain business listing Be the first listing in Mumbulla Mountain Common questionsWhat is the postcode for Mumbulla Mountain?Mumbulla Mountain, NSW has the postcode 2550.What state is Mumbulla Mountain in?Mumbulla Mountain is in New South Wales (NSW).Does postcode 2550 cover more than one suburb?Yes. Postcode 2550 covers 52 localities, so the postcode alone does not identify Mumbulla Mountain. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.