High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Mandale is an unincorporated community in southeastern Washington Township, Paulding County, Ohio, United States. It lies at the intersection of State Routes 66 and 114. State Route 66 is a north south state highway in the northwestern portion of the U.S. state of Ohio. Its southern terminus is at U.S. Route 36 and the eastern terminus of State Route 185 in Piqua, and its northern terminus is at U.S. Route 20 in Fayette. South of Defiance it generally follows the route of the former Miami and Erie Canal.