Home Postcode finder NSW Bolong Bolong postcode NSW Bolong 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 Bolong business listing Be the first listing in Bolong Common questionsWhat is the postcode for Bolong?Bolong, NSW has the postcode 2540.What state is Bolong in?Bolong 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 Bolong. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.