Home Postcode finder NSW Comboyne Comboyne postcode NSW Comboyne is a locality in New South Wales covered by postcode 2429. Postcode 2429 State or territory New South Wales (NSW) Region Hunter Add a free Comboyne business listing More business listings in Comboyne Businesses in ComboyneComboyne Public SchoolHill St · 02 65504174 Common questionsWhat is the postcode for Comboyne?Comboyne, NSW has the postcode 2429.What state is Comboyne in?Comboyne is in New South Wales (NSW).Does postcode 2429 cover more than one suburb?Yes. Postcode 2429 covers 32 localities, so the postcode alone does not identify Comboyne. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.