Miami County, Ohio
|Miami County, Ohio|
Location in the state of Ohio
Ohio's location in the U.S.
|Founded||March 1, 1807|
|Named for||a Native American word of disputed meaning|
409.66 sq mi (1,061 km²)
406.58 sq mi (1,053 km²)
3.08 sq mi (8 km²), 0.75%
252.1/sq mi (97/km²)
|Time zone||Eastern: UTC-5/-4|
|Footnotes: *Based on population just within the county.|
Miami County is a county located in the state of Ohio. According to the 2010 census, it has a population of 102,506, which is an increase of 3.7% from 98,868 in 2000. Its county seat is Troy and is named for an Indian word of disputed meaning.
Miami County is part of the Dayton Metropolitan Statistical Area.
According to the 2010 census, the county has a total area of 409.66 square miles (1,061.0 km2), of which 406.58 square miles (1,053.0 km2) (or 99.25%) is land and 3.08 square miles (8.0 km2) (or 0.75%) is water.
Adjacent counties 
- Shelby County (north)
- Champaign County (northeast)
- Clark County (southeast)
- Montgomery County (south)
- Darke County (west)
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.
There were 38,437 households out of which 33.30% had children under the age of 18 living with them, 59.50% were married couples living together, 9.70% had a female householder with no husband present, and 27.30% were non-families. 23.20% of all households were made up of individuals and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 2.99.
In the county, the population was spread out with 25.90% under the age of 18, 7.60% from 18 to 24, 28.40% from 25 to 44, 24.80% from 45 to 64, and 13.20% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 96.20 males. For every 100 females age 18 and over, there were 92.40 males.
The median income for a household in the county was $44,109, and the median income for a family was $51,169. Males had a median income of $37,357 versus $25,493 for females. The per capita income for the county was $21,669. About 5.10% of families and 6.70% of the population were below the poverty line, including 9.10% of those under age 18 and 5.60% of those age 65 or over.
Current officials 
- Board of Commissioners:
- John O'Brien (R)
- John "Jack" Evans (R)
- Dick Cultice (R)
- County Auditor: Matthew W. Gearhardt (R)
- Clerk of Courts: Jan Mottinger (R)
- County Coroner: Bruce M. Nordquist (R)
- County Engineer: Paul Huelskamp (R)
- County Prosecutor: Gary Nasal (R)
- County Recorder: John Alexander (R)
- Sheriff: Charles Cox, Jr. (R)
- County Treasurer: James Stubbs (R)
Miami County Court of Common Pleas
- Jeffrey Welbaum (R)
- Robert Lindeman (R)
- W. McGregor Dixon (R)
- Mel Kemmer (R)
- Elizabeth Gutmann (R)
Unincorporated communities 
Public school districts 
- Bethel Local Schools
- Bethel High School, Tipp City (the Bees)
- Bradford Schools
- Bradford High School, Bradford (the Railroaders)
- Covington Exempted Village School District
- Covington High School, Covington (the Buccs/Buccaneers)
- Miami East Local Schools
- Miami East High School, Casstown (the Vikings)
- Milton-Union Exempted Village Schools
- Milton-Union High School, West Milton (the Bulldogs)
- Newton Local School District
- Newton High School, Newton (the Indians)
- Piqua City School District
- Piqua High School, Piqua (the Indians)
- Tipp City Exempted Village School District
- Tippecanoe High School, Tipp City (the Red Devils)
- Troy City School District
- Troy High School, Troy (the Trojans)
See also 
- "Ohio County Profiles: Miami County" (PDF). Ohio Department of Development. Retrieved 2007-04-28.
- "Miami County data (population)". Ohio State University Extension Data Center. Retrieved 2007-05-10.
- "Miami County QuickFacts". United States Census Bureau. Retrieved 2012-02-16.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "Miami County data". Ohio State University Extension Data Center. Retrieved 2007-04-28.[dead link]
- "Census 2010 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-11-05.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
||Shelby County||Champaign County|
|Montgomery County||Clark County|