Home Postcode finder NSW Culcairn Culcairn postcode NSW Culcairn is a locality in New South Wales covered by postcode 2660. Postcode 2660 State or territory New South Wales (NSW) Region Canberra Add a free Culcairn business listing More business listings in Culcairn Businesses in CulcairnBillabong High School36 Gordon St · 02 60298377Culcairn Public SchoolBalfour St · 02 60298385St Joseph's School8 Blair St · 02 60298577 Common questionsWhat is the postcode for Culcairn?Culcairn, NSW has the postcode 2660.What state is Culcairn in?Culcairn is in New South Wales (NSW).Does postcode 2660 cover more than one suburb?Yes. Postcode 2660 covers 2 localities, so the postcode alone does not identify Culcairn. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.