Home Postcode finder NSW Piallaway Piallaway postcode NSW Piallaway is a locality in New South Wales covered by postcode 2342. Postcode 2342 State or territory New South Wales (NSW) Region NSW North Coast Add a free Piallaway business listing Be the first listing in Piallaway Common questionsWhat is the postcode for Piallaway?Piallaway, NSW has the postcode 2342.What state is Piallaway in?Piallaway is in New South Wales (NSW).Does postcode 2342 cover more than one suburb?Yes. Postcode 2342 covers 2 localities, so the postcode alone does not identify Piallaway. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.