Home Postcode finder NSW Glendon Glendon postcode NSW Glendon is a locality in New South Wales covered by postcode 2330. Postcode 2330 State or territory New South Wales (NSW) Region Hunter Add a free Glendon business listing Be the first listing in Glendon Common questionsWhat is the postcode for Glendon?Glendon, NSW has the postcode 2330.What state is Glendon in?Glendon is in New South Wales (NSW).Does postcode 2330 cover more than one suburb?Yes. Postcode 2330 covers 63 localities, so the postcode alone does not identify Glendon. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.