Miami County | |
|---|---|
 County courthouse in Troy | |
 Flag  Seal | |
 Location within the U.S. state of Ohio | |
 Ohio's location within the U.S. | |
| Coordinates: 40°03′N 84°14′W / 40.05°N 84.23°W | |
| Country |  United States |
| State |  Ohio |
| Founded | March 1, 1807[1] |
| Named for | Miami people |
| Seat | Troy |
| Largest city | Troy* |
| Area | |
| • Total | 410 sq mi (1,100 km2) |
| • Land | 407 sq mi (1,050 km2) |
| • Water | 3.1 sq mi (8 km2) 0.8% |
| Population (2020) | |
| • Total | 108,774 |
| • Density | 270/sq mi (100/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional districts | 8th, 15th |
| Website | www |
Miami County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 108,774.[2] Its county seat is Troy.[3] The county is named in honor of the Miami people.[4] Miami County is part of the Dayton, OH Metropolitan Statistical Area.
- ^ "Ohio County Profiles: Miami County" (PDF). Ohio Department of Development. Archived from the original (PDF) on June 21, 2007. Retrieved April 28, 2007.
- ^ 2020 census
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ "Miami County". Ohio History Central. Retrieved March 18, 2020.