Founded: 1818 Location: Southwestern Ohio, approximately eight miles south of Dayton in Montgomery County. Population: 20,181 (2010 census) Median family income: $56,996 Land area: 12.4 square miles Roadways in use: 115 miles (est.) Largest employer: Kettering Health Income tax rate: 2.25 % (became effective on 1-1-11) Number of employees: 125 full-time Sister City: Owen Sound, Ontario, Canada Public...