Home Postcode finder VIC Underbool Underbool postcode VIC Underbool is a locality in Victoria covered by postcode 3509. Postcode 3509 State or territory Victoria (VIC) Region Vic Far Country Add a free Underbool business listing More business listings in Underbool Businesses in UnderboolUnderbool Primary SchoolCotter St · 03 50946342 Common questionsWhat is the postcode for Underbool?Underbool, VIC has the postcode 3509.What state is Underbool in?Underbool is in Victoria (VIC).Does postcode 3509 cover more than one suburb?Yes. Postcode 3509 covers 2 localities, so the postcode alone does not identify Underbool. Browse other postcodes in Victoria, or widen the search to every Australian postcode.