Troy is a city in and the county seat of Miami County, Ohio, United States, along the Great Miami River. The population was 26,305 at the 2020 census, making it Miami County's largest city and Ohio's 55th-largest. About 19 miles (31 km) north of Dayton, Troy is part of the Dayton metropolitan area.
Troy Public Square
Troy in the 1920s
Miami County courthouse
Post office
Miami County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 108,774. Its county seat is Troy. The county is named in honor of the Miami people.
County courthouse in Troy