High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Highland Township is one of the twelve townships of Defiance County, Ohio, United States. The 2000 census found 2,658 people in the township. Statewide, the only other Highland Township is located in Muskingum County. The township is governed by a three-member board of trustees, who are elected in November of odd-numbered years to a four-year term beginning on the following January 1.