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World Population Review
Miami County, Ohio Population 2021
Miami County, Ohio's estimated population is 108,877 with a growth rate of 0.88% in the past year according to the most recent United States census data. Miami County, Ohio is the 26th largest county in Ohio. The 2010 Population was 102,487 and has seen a growth of 6.23% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 108,877 | 945 | 0.88% |
| 2020 | 107,932 | 945 | 0.88% |
| 2019 | 106,987 | 945 | 0.89% |
| 2018 | 106,042 | 842 | 0.80% |
| 2017 | 105,200 | 647 | 0.62% |
| 2016 | 104,553 | 478 | 0.46% |
| 2015 | 104,075 | 219 | 0.21% |
| 2014 | 103,856 | 643 | 0.62% |
| 2013 | 103,213 | 279 | 0.27% |
| 2012 | 102,934 | 200 | 0.19% |
| 2011 | 102,734 | 247 | 0.24% |
| 2010 | 102,487 | 9,305 | 9.99% |
| 1990 | 93,182 | 2,801 | 3.10% |
| 1980 | 90,381 | 6,039 | 7.16% |
| 1970 | 84,342 | 11,441 | 15.69% |
| 1960 | 72,901 | 11,592 | 18.91% |
| 1950 | 61,309 | 8,677 | 16.49% |
| 1940 | 52,632 | 1,331 | 2.59% |
| 1930 | 51,301 | 2,873 | 5.93% |
| 1920 | 48,428 | 3,381 | 7.51% |
| 1910 | 45,047 | 1,942 | 4.51% |
| 1900 | 43,105 | 3,351 | 8.43% |
| 1890 | 39,754 | 3,596 | 9.95% |
| 1880 | 36,158 | 3,418 | 10.44% |
| 1870 | 32,740 | 2,781 | 9.28% |
| 1860 | 29,959 | 4,960 | 19.84% |
| 1850 | 24,999 | 5,311 | 26.98% |
| 1840 | 19,688 | 6,881 | 53.73% |
| 1830 | 12,807 | 3,956 | 44.70% |
| 1820 | 8,851 | 4,910 | 124.59% |
| 1810 | 3,941 | 0.00% |
2021 Growth Rate
0.88%
County Website
State
Founded
March 1, 1807
County Seat
Lat./Long.
2010 Population
102,487
Growth Since 2010
6.23%
Miami County, Ohio Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 98,717 | 93.69% |
| Two or More Races | 2,801 | 2.66% |
| Black or African American | 2,130 | 2.02% |
| Asian | 1,317 | 1.25% |
| Some Other Race | 253 | 0.24% |
| American Indian and Alaska Native | 147 | 0.14% |
| Native Hawaiian and Other Pacific Islander | 6 | 0.01% |
Miami County, Ohio Population by Race
Miami County, Ohio Population Pyramid $2021
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Miami County, Ohio Population by Age
Miami County, Ohio Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 41,043 | 2.54 | 71.1 |
| Married | 21,394 | 3.16 | 87.6 |
| Non Family | 14,471 | 1.26 | 54.2 |
| Female | 3,398 | 3.63 | 51 |
| Male | 1,780 | 3.58 | 47.4 |
3.17
Average Family Size
2.54
Average Household Size
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Miami County, Ohio Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 1,478 | 2.02% |
| 9th to 12th Grade | 4,971 | 6.80% |
| High School Graduate | 26,735 | 36.59% |
| Some College | 15,897 | 21.76% |
| Associates Degree | 6,962 | 9.53% |
| Bachelors Degree | 10,534 | 14.42% |
| Graduate Degree | 6,483 | 8.87% |
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Miami County, Ohio Educational Attainment by Sex (over 25)
Miami County, Ohio Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 68,847 | 63,058 | 16,047 |
| Black | 1,405 | 1,174 | 166 |
| Asian | 1,069 | 1,021 | 444 |
| Hispanic | 955 | 732 | 187 |
| 2+ Races | 711 | 609 | 154 |
| Other Race | 182 | 135 | 28 |
| Native American | 147 | 91 | 19 |
| Islander | 6 | 6 |
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 41.53%.
Miami County, Ohio Educational Attainment by Race
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$39,870
Average Earnings
$48,359
Average Male
$30,689
Average Female
Miami County, Ohio Earnings by Educational Attainment
Miami County, Ohio Language by Age
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Miami County, Ohio Language
97.23% of Miami County, Ohio residents speak only English, while 2.77% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 0.91% of the population.
Miami County, Ohio Language
Miami County, Ohio Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 96,101 | 8,233 | 8.57% |
| Multiple | 2,789 | 495 | 17.75% |
| Black | 1,970 | 426 | 21.62% |
| Hispanic | 1,761 | 329 | 18.68% |
| Asian | 1,317 | 42 | 3.19% |
| Other | 253 | 34 | 13.44% |
| Native | 147 | 33 | 22.45% |
| Islander | 6 | 6 | 100.00% |
9.15%
Overall Poverty Rate
7.91%
Male Poverty Rate
10.36%
Female Poverty Rate
Poverty in Miami County, Ohio
The race most likely to be in poverty in Miami County, Ohio is Islander, with 100.00% below the poverty level.
The race least likely to be in poverty in Miami County, Ohio is Asian, with 3.19% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.83%. Among those working part-time, it was 13.40%, and for those that did not work, the poverty rate was 14.00%.
Miami County, Ohio Poverty
Miami County, Ohio Poverty Rate by Education
Miami County, Ohio Marital Status
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Marriage Rates
52.7%
Overall Marriage Rate
54.0%
Male Marriage Rate
51.5%
Female Marriage Rate
Miami County, Ohio Married by Age and Sex
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Miami County, Ohio Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Miami County, Ohio Marital Status by Race
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Miami County, Ohio Marital Status
Miami County, Ohio Veterans by War
Miami County, Ohio Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 7,460 | 9.77% |
| Black | 201 | 12.63% |
| Hispanic | 90 | 8.70% |
| Asian | 42 | 3.79% |
| 2+ Races | 16 | 1.21% |
Miami County, Ohio Veterans by Race
Miami County, Ohio Veterans by Education
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4.53%
Veteran Poverty Rate
25.90%
Veteran Disability Rate
Miami County, Ohio Veterans by Education
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63.9%
Labor Force Participation
60.6%
Employment Rate
4.9%
Unemployment Rate
Miami County, Ohio Employment by Age
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Miami County, Ohio Employment by Race
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Miami County, Ohio Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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98.09%
Native Born
1.91%
Foreign Born
0.87%
Non Citizen
1.04%
Naturalized
Place of Birth
98.09% of Miami County, Ohio residents were born in the United States, with 78.35% having been born in Ohio. 0.87% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Miami County, Ohio Place of Birth
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990