Home Postcode finder NSW Wollumboola Wollumboola postcode NSW Wollumboola is a locality in New South Wales covered by postcode 2540. Postcode 2540 State or territory New South Wales (NSW) Region NSW Country West Add a free Wollumboola business listing Be the first listing in Wollumboola Common questionsWhat is the postcode for Wollumboola?Wollumboola, NSW has the postcode 2540.What state is Wollumboola in?Wollumboola is in New South Wales (NSW).Does postcode 2540 cover more than one suburb?Yes. Postcode 2540 covers 68 localities, so the postcode alone does not identify Wollumboola. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.