Home Postcode finder NSW Beni Beni postcode NSW Beni is a locality in New South Wales covered by postcode 2830. Postcode 2830 State or territory New South Wales (NSW) Region NSW Country West Add a free Beni business listing Be the first listing in Beni Common questionsWhat is the postcode for Beni?Beni, NSW has the postcode 2830.What state is Beni in?Beni is in New South Wales (NSW).Does postcode 2830 cover more than one suburb?Yes. Postcode 2830 covers 31 localities, so the postcode alone does not identify Beni. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.