Home Postcode finder NSW Lucknow Lucknow postcode NSW Lucknow is a locality in New South Wales covered by postcode 2800. Postcode 2800 State or territory New South Wales (NSW) Region NSW Country West Add a free Lucknow business listing Be the first listing in Lucknow Common questionsWhat is the postcode for Lucknow?Lucknow, NSW has the postcode 2800.What state is Lucknow in?Lucknow is in New South Wales (NSW).Does postcode 2800 cover more than one suburb?Yes. Postcode 2800 covers 33 localities, so the postcode alone does not identify Lucknow. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.