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Miami County
Sign in to saveAlso known as Miami County, Ohio, Miami County, OH
county in Ohio, United States
Key facts
- Country
- United States
- State
- Ohio
- Founded
- March 1, 1807
- Named after
- Miami people
- Seat
- Troy
- Largest city
- Troy*
- Total
- 410 sq mi (1,100 km )
- Land
- 407 sq mi (1,050 km )
- Water
- 3.1 sq mi (8.0 km ) 0.8%
- Estimate 2025
- 112,634
- Density
- 267/sq mi (103/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional districts
- 8th , 15th
- Website
- www .miamicountyohio .gov
via Wikipedia infobox
~8 min read
Encyclopedic overview
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 metropolitan area.
Geography
Excerpted from Wikipedia’s “Miami County” article, available under the CC BY-SA 4.0 licence.