Miami County
County
County courthouse in Troy
County courthouse in Troy
Official seal of Miami County
Seal
Map of Ohio highlighting Miami County
Location within the U.S. state of Ohio
Map of the United States highlighting Ohio
Ohio's location within the U.S.
Coordinates: 40°03′N 84°14′W / 40.05°N 84.23°W / 40.05; -84.23
Country United States
State Ohio
FoundedMarch 1, 1807[1]
Named forMiami people
SeatTroy
Largest cityTroy*
Area
 • Total410 sq mi (1,100 km2)
 • Land407 sq mi (1,050 km2)
 • Water3.1 sq mi (8 km2)  0.8%
Population
 (2020)
 • Total108,774
 • Density270/sq mi (100/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional districts8th, 15th
Websitewww.miamicountyohio.gov

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.

Geography

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.[5]

Adjacent counties

Demographics

Historical population
CensusPop.Note%±
18103,941—
18208,851124.6%
183012,80744.7%
184019,68853.7%
185024,99927.0%
186029,95919.8%
187032,7409.3%
188036,15810.4%
189039,7549.9%
190043,1058.4%
191045,0474.5%
192048,4287.5%
193051,3015.9%
194052,6322.6%
195061,30916.5%
196072,90118.9%
197084,34215.7%
198090,3817.2%
199093,1823.1%
200098,8686.1%
2010102,5063.7%
2020108,7746.1%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2020 [2]>

2000 census

As of the census[10] of 2000, there were 98,868 people, 38,437 households, and 27,943 families living in the county. The population density was 243 people per square mile (94 people/km2). There were 40,554 housing units at an average density of 100 units per square mile (39/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.

2010 census

As of the 2010 United States Census, there were 102,506 people, 40,917 households, and 28,626 families living in the county.[11] The population density was 252.1 inhabitants per square mile (97.3/km2). There were 44,256 housing units at an average density of 108.8 units per square mile (42.0 units/km2).[12] The racial makeup of the county was 94.4% white, 2.0% black or African American, 1.2% Asian, 0.2% American Indian, 0.5% from other races, and 1.8% from two or more races. Those of Hispanic or Latino origin made up 1.3% of the population.[11] In terms of ancestry, 34.5% were German, 13.5% were Irish, 10.2% were English, and 9.8% were American.[13]

Of the 40,917 households, 32.3% had children under the age of 18 living with them, 54.7% were married couples living together, 10.5% had a female householder with no husband present, 30.0% were non-families, and 25.3% of all households were made up of individuals. The average household size was 2.48 and the average family size was 2.95. The median age was 40.6 years.[11]

The median income for a household in the county was $51,507 and the median income for a family was $61,190. Males had a median income of $46,133 versus $32,699 for females. The per capita income for the county was $25,006. About 7.0% of families and 9.5% of the population were below the poverty line, including 14.0% of those under age 18 and 4.8% of those age 65 or over.[14]

Politics

Miami County is a Republican stronghold county in presidential elections, with Democrats winning the county only three times in 1912, 1936, and 1964.

United States presidential election results for Miami County, Ohio[15]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 41,371 71.23% 15,663 26.97% 1,043 1.80%
2016 37,079 69.84% 13,120 24.71% 2,895 5.45%
2012 34,606 66.53% 16,383 31.50% 1,025 1.97%
2008 33,417 63.15% 18,372 34.72% 1,126 2.13%
2004 33,992 65.67% 17,606 34.01% 162 0.31%
2000 26,037 60.78% 15,584 36.38% 1,220 2.85%
1996 19,509 48.77% 15,540 38.85% 4,956 12.39%
1992 19,741 45.90% 12,547 29.17% 10,718 24.92%
1988 24,915 68.38% 11,138 30.57% 381 1.05%
1984 26,300 72.42% 9,695 26.70% 320 0.88%
1980 19,928 55.65% 12,893 36.01% 2,987 8.34%
1976 18,686 57.65% 13,074 40.34% 653 2.01%
1972 21,226 68.44% 9,121 29.41% 665 2.14%
1968 16,997 50.62% 13,228 39.40% 3,352 9.98%
1964 12,985 40.12% 19,379 59.88% 0 0.00%
1960 22,151 65.30% 11,770 34.70% 0 0.00%
1956 20,135 68.57% 9,229 31.43% 0 0.00%
1952 19,525 65.11% 10,462 34.89% 0 0.00%
1948 13,100 56.33% 10,066 43.29% 89 0.38%
1944 14,751 58.47% 10,476 41.53% 0 0.00%
1940 14,725 55.52% 11,799 44.48% 0 0.00%
1936 11,343 44.86% 12,754 50.44% 1,189 4.70%
1932 12,157 51.95% 10,677 45.62% 568 2.43%
1928 16,063 72.80% 5,867 26.59% 136 0.62%
1924 11,851 62.70% 5,296 28.02% 1,754 9.28%
1920 13,122 60.28% 8,076 37.10% 572 2.63%
1916 5,772 48.61% 5,582 47.01% 519 4.37%
1912 3,615 32.49% 4,310 38.74% 3,200 28.76%
1908 6,558 53.69% 5,369 43.95% 288 2.36%
1904 6,793 62.44% 3,646 33.51% 440 4.04%
1900 6,197 53.86% 5,127 44.56% 181 1.57%
1896 6,051 52.60% 5,387 46.83% 65 0.57%
1892 5,110 51.26% 4,271 42.84% 588 5.90%
1888 5,312 53.04% 4,258 42.51% 446 4.45%
1884 5,273 55.56% 4,084 43.03% 134 1.41%
1880 4,928 57.33% 3,604 41.93% 64 0.74%
1876 4,388 55.40% 3,509 44.31% 23 0.29%
1872 3,753 56.03% 2,910 43.45% 35 0.52%
1868 3,958 59.82% 2,659 40.18% 0 0.00%
1864 3,821 61.94% 2,348 38.06% 0 0.00%
1860 3,431 58.69% 2,337 39.98% 78 1.33%
1856 3,171 59.63% 1,988 37.38% 159 2.99%

Government

See also: Ohio county government

Current officials

Miami County Court of Common Pleas

Municipal Court

Education

Public school districts

Miscellaneous education

The Western Ohio Japanese Language School (オハイオ西部日本語学校 Ohaio Seibu Nihongo Gakkō) is a supplementary weekend Japanese school in unincorporated Miami County, near Troy. It started in April 1988.[16]

Communities

Municipalities and townships of Miami County

Cities

Villages

Townships

Unincorporated communities

See also

References

  1. ^ "Ohio County Profiles: Miami County" (PDF). Ohio Department of Development. Archived from the original (PDF) on June 21, 2007. Retrieved April 28, 2007.
  2. ^ a b 2020 census
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  4. ^ "Miami County". Ohio History Central. Retrieved March 18, 2020.
  5. ^ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on May 4, 2014. Retrieved February 9, 2015.
  6. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved February 9, 2015.
  7. ^ "Historical Census Browser". University of Virginia Library. Retrieved February 9, 2015.
  8. ^ Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved February 9, 2015.
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Archived (PDF) from the original on March 27, 2010. Retrieved February 9, 2015.
  10. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  11. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved December 27, 2015.
  12. ^ "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved December 27, 2015.
  13. ^ "DP02 Selected Social Characteristics in the United States – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved December 27, 2015.
  14. ^ "DP03 Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved December 27, 2015.
  15. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 7, 2018.
  16. ^ "本校概要" (Archive). Western Ohio Japanese Language School. Retrieved on May 11, 2014.

External links

Wikivoyage has a travel guide for Miami County (Ohio).

, 40°03′N 84°14′W / 40.05°N 84.23°W / 40.05; -84.23

Places adjacent to Miami County, Ohio
Municipalities and communities of Miami County, Ohio, United States
State of Ohio
Authority control databases
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