Home Postcode finder NSW Louth Park Louth Park postcode NSW Louth Park is a locality in New South Wales covered by postcode 2320. Postcode 2320 State or territory New South Wales (NSW) Region Hunter Add a free Louth Park business listing Be the first listing in Louth Park Common questionsWhat is the postcode for Louth Park?Louth Park, NSW has the postcode 2320.What state is Louth Park in?Louth Park is in New South Wales (NSW).Does postcode 2320 cover more than one suburb?Yes. Postcode 2320 covers 30 localities, so the postcode alone does not identify Louth Park. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.