Home Postcode finder NSW Kingstown Kingstown postcode NSW Kingstown is a locality in New South Wales covered by postcode 2358. Postcode 2358 State or territory New South Wales (NSW) Region NSW North Coast Add a free Kingstown business listing Be the first listing in Kingstown Common questionsWhat is the postcode for Kingstown?Kingstown, NSW has the postcode 2358.What state is Kingstown in?Kingstown is in New South Wales (NSW).Does postcode 2358 cover more than one suburb?Yes. Postcode 2358 covers 10 localities, so the postcode alone does not identify Kingstown. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.