Home Postcode finder NSW Wollombi Wollombi postcode NSW Wollombi is a locality in New South Wales covered by postcode 2325. Postcode 2325 State or territory New South Wales (NSW) Region Hunter Add a free Wollombi business listing More business listings in Wollombi Businesses in WollombiWollombi Public SchoolMaitland Rd · 02 49983229 Common questionsWhat is the postcode for Wollombi?Wollombi, NSW has the postcode 2325.What state is Wollombi in?Wollombi is in New South Wales (NSW).Does postcode 2325 cover more than one suburb?Yes. Postcode 2325 covers 27 localities, so the postcode alone does not identify Wollombi. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.