lucknow postcode nswst Home ›› Postcode Finder ›› NSWST ›› Lucknow Lucknow local listingsThe suburb of Lucknow is located in NSW and has a postcode of 2800. Free lucknow business listing! Get the first free listing in lucknow! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.