Miami County, Ohio | ||
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County courthouse in Troy
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Location in the U.S. state of Ohio |
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Ohio's location in the U.S. |
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Founded | March 1, 1807 | |
Named for | Miami people | |
Seat | Troy | |
Largest city | Troy* | |
Area | ||
• Total | 410 sq mi (1,062 km2) | |
• Land | 407 sq mi (1,054 km2) | |
• Water | 3.1 sq mi (8 km2), 0.8% | |
Population | ||
• (2010) | 102,506 | |
• Density | 252/sq mi (97/km²) | |
Congressional district | 8th | |
Time zone | Eastern: UTC-5/-4 | |
Website | www |
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Footnotes: *Based on population just within the county. |
Miami County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 102,506. Its county seat is Troy. The county is named for an Indian word of disputed meaning.
Miami County is part of the Dayton, OH Metropolitan Statistical Area.
According to the U.S. Census Bureau, the county has a total area of 410 square miles (1,100 km2), of which 407 square miles (1,050 km2) is land and 3.1 square miles (8.0 km2) (0.8%) is water.
As of the census of 2000, there were 98,868 people, 38,437 households, and 27,943 families residing in the county. The population density was 243 people per square mile (94/km²). There were 40,554 housing units at an average density of 100 per square mile (38/km²). The racial makeup of the county was 95.78% White, 1.95% Black or African American, 0.19% Native American, 0.79% Asian, 0.01% Pacific Islander, 0.28% from other races, and 1.00% from two or more races. 0.73% of the population were Hispanic or Latino of any race.