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.
Miami County is part of the Dayton, OH Metropolitan Statistical Area.
| Name: | Miami County |
|---|---|
| FIPS code: | 39-109 |
| State: | Ohio |
| Founded: | March 1, 1807 |
| Named for: | Miami people |
| Seat: | Troy |
| Largest city: | Troy* |
| Total Area: | 410 sq mi (1,100 km²) |
| Land Area: | 407 sq mi (1,050 km²) |
| Total Population: | 108,774 |
| Population Density: | 270/sq mi (100/km²) |
| Time zone: | UTC−5 (Eastern) |
| Summer Time Zone (DST): | UTC−4 (EDT) |
| Website: | www.miamicountyohio.gov |
Miami County location map. Where is Miami County?
Miami County Road Map
Geography
According to the U.S. Census Bureau, the county has a total area of 410 square miles (1,100 km), of which 407 square miles (1,050 km) is land and 3.1 square miles (8.0 km) (0.8%) is water.
Adjacent counties
- Shelby County (north)
- Champaign County (northeast)
- Clark County (southeast)
- Montgomery County (south)
- Darke County (west)
Miami County Topographic Map
Miami County Satellite Map
Miami County Outline Map
