Home Postcode finder NSW Duckmaloi Duckmaloi postcode NSW Duckmaloi is a locality in New South Wales covered by postcode 2787. Postcode 2787 State or territory New South Wales (NSW) Region NSW Country West Add a free Duckmaloi business listing Be the first listing in Duckmaloi Common questionsWhat is the postcode for Duckmaloi?Duckmaloi, NSW has the postcode 2787.What state is Duckmaloi in?Duckmaloi is in New South Wales (NSW).Does postcode 2787 cover more than one suburb?Yes. Postcode 2787 covers 19 localities, so the postcode alone does not identify Duckmaloi. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.