Home Postcode finder NSW Chisholm Chisholm postcode NSW Chisholm is a locality in New South Wales covered by postcode 2322. Postcode 2322 State or territory New South Wales (NSW) Region Hunter Add a free Chisholm business listing Be the first listing in Chisholm Common questionsWhat is the postcode for Chisholm?Chisholm, NSW has the postcode 2322.What state is Chisholm in?Chisholm is in New South Wales (NSW).Does postcode 2322 cover more than one suburb?Yes. Postcode 2322 covers 10 localities, so the postcode alone does not identify Chisholm. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.