Home Postcode finder NSW Hinton Hinton postcode NSW Hinton is a locality in New South Wales covered by postcode 2321. Postcode 2321 State or territory New South Wales (NSW) Region Hunter Add a free Hinton business listing More business listings in Hinton Businesses in HintonHinton Public School20 Paterson St · 02 49305266 Common questionsWhat is the postcode for Hinton?Hinton, NSW has the postcode 2321.What state is Hinton in?Hinton is in New South Wales (NSW).Does postcode 2321 cover more than one suburb?Yes. Postcode 2321 covers 20 localities, so the postcode alone does not identify Hinton. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.