Home Postcode finder NSW Liddell Liddell postcode NSW Liddell is a locality in New South Wales covered by postcode 2333. Postcode 2333 State or territory New South Wales (NSW) Region Hunter Add a free Liddell business listing Be the first listing in Liddell Common questionsWhat is the postcode for Liddell?Liddell, NSW has the postcode 2333.What state is Liddell in?Liddell is in New South Wales (NSW).Does postcode 2333 cover more than one suburb?Yes. Postcode 2333 covers 14 localities, so the postcode alone does not identify Liddell. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.