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World Population Review
Hamilton County, Ohio Population 2021
Hamilton County, Ohio's estimated population is 821,529 with a growth rate of 0.25% in the past year according to the most recent United States census data. Hamilton County, Ohio is the 4th largest county in Ohio. The 2010 Population was 802,278 and has seen a growth of 2.40% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 821,529 | 2,028 | 0.25% |
| 2020 | 819,501 | 2,028 | 0.25% |
| 2019 | 817,473 | 2,028 | 0.25% |
| 2018 | 815,445 | 1,275 | 0.16% |
| 2017 | 814,170 | 2,838 | 0.35% |
| 2016 | 811,332 | 1,805 | 0.22% |
| 2015 | 809,527 | 1,910 | 0.24% |
| 2014 | 807,617 | 2,435 | 0.30% |
| 2013 | 805,182 | 2,773 | 0.35% |
| 2012 | 802,409 | 1,751 | 0.22% |
| 2011 | 800,658 | -1,620 | -0.20% |
| 2010 | 802,278 | -63,950 | -7.38% |
| 1990 | 866,228 | -6,996 | -0.80% |
| 1980 | 873,224 | -50,794 | -5.50% |
| 1970 | 924,018 | 59,897 | 6.93% |
| 1960 | 864,121 | 140,169 | 19.36% |
| 1950 | 723,952 | 101,965 | 16.39% |
| 1940 | 621,987 | 32,631 | 5.54% |
| 1930 | 589,356 | 95,678 | 19.38% |
| 1920 | 493,678 | 32,946 | 7.15% |
| 1910 | 460,732 | 51,253 | 12.52% |
| 1900 | 409,479 | 34,906 | 9.32% |
| 1890 | 374,573 | 61,199 | 19.53% |
| 1880 | 313,374 | 53,004 | 20.36% |
| 1870 | 260,370 | 43,960 | 20.31% |
| 1860 | 216,410 | 59,566 | 37.98% |
| 1850 | 156,844 | 76,699 | 95.70% |
| 1840 | 80,145 | 27,828 | 53.19% |
| 1830 | 52,317 | 20,553 | 64.71% |
| 1820 | 31,764 | 16,506 | 108.18% |
| 1810 | 15,258 | 566 | 3.85% |
| 1800 | 14,692 | 0.00% |
2021 Growth Rate
0.25%
County Website
State
Founded
January 2, 1790
County Seat
Lat./Long.
2010 Population
802,278
Growth Since 2010
2.40%
Hamilton County, Ohio Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 548,299 | 67.39% |
| Black or African American | 207,839 | 25.55% |
| Two or More Races | 26,663 | 3.28% |
| Asian | 21,550 | 2.65% |
| Some Other Race | 7,818 | 0.96% |
| American Indian and Alaska Native | 904 | 0.11% |
| Native Hawaiian and Other Pacific Islander | 516 | 0.06% |
Hamilton County, Ohio Population by Race
Hamilton County, Ohio Population Pyramid $2021
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Hamilton County, Ohio Population by Age
Hamilton County, Ohio Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 341,873 | 2.33 | 57.9 |
| Non Family | 144,729 | 1.25 | 41 |
| Married | 132,255 | 3.09 | 83.9 |
| Female | 49,738 | 3.17 | 39.9 |
| Male | 15,151 | 3.19 | 51.8 |
3.04
Average Family Size
2.33
Average Household Size
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Hamilton County, Ohio Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 13,386 | 2.44% |
| 9th to 12th Grade | 34,016 | 6.19% |
| High School Graduate | 144,418 | 26.29% |
| Some College | 103,066 | 18.76% |
| Associates Degree | 46,168 | 8.40% |
| Bachelors Degree | 125,107 | 22.77% |
| Graduate Degree | 83,219 | 15.15% |
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Hamilton County, Ohio Educational Attainment by Sex (over 25)
Hamilton County, Ohio Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 381,279 | 357,720 | 167,980 |
| Black | 130,630 | 112,494 | 23,235 |
| Asian | 14,870 | 13,192 | 10,257 |
| Hispanic | 13,092 | 10,036 | 4,039 |
| 2+ Races | 8,958 | 8,033 | 2,735 |
| Other Race | 3,865 | 2,738 | 873 |
| Native American | 713 | 683 | 210 |
| Islander | 260 | 214 | 67 |
The highest rate of high school graduation is among native american people with a rate of 95.79%.
The highest rate of bachelors degrees is among asian people with a rate of 68.98%.
Hamilton County, Ohio Educational Attainment by Race
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$41,641
Average Earnings
$48,437
Average Male
$35,824
Average Female
Hamilton County, Ohio Earnings by Educational Attainment
Hamilton County, Ohio Language by Age
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Hamilton County, Ohio Language
92.41% of Hamilton County, Ohio residents speak only English, while 7.59% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.64% of the population.
Hamilton County, Ohio Language
Hamilton County, Ohio Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Black | 203,968 | 58,892 | 28.87% |
| White | 518,429 | 49,299 | 9.51% |
| Hispanic | 26,206 | 7,983 | 30.46% |
| Multiple | 25,909 | 6,633 | 25.60% |
| Asian | 21,123 | 2,593 | 12.28% |
| Other | 7,665 | 2,435 | 31.77% |
| Islander | 516 | 311 | 60.27% |
| Native | 899 | 103 | 11.46% |
15.76%
Overall Poverty Rate
14.41%
Male Poverty Rate
17.03%
Female Poverty Rate
Poverty in Hamilton County, Ohio
The race most likely to be in poverty in Hamilton County, Ohio is Islander, with 60.27% below the poverty level.
The race least likely to be in poverty in Hamilton County, Ohio is White, with 9.51% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.61%. Among those working part-time, it was 21.50%, and for those that did not work, the poverty rate was 23.67%.
Hamilton County, Ohio Poverty
Hamilton County, Ohio Poverty Rate by Education
Hamilton County, Ohio Marital Status
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Marriage Rates
42.7%
Overall Marriage Rate
44.8%
Male Marriage Rate
40.9%
Female Marriage Rate
Hamilton County, Ohio Married by Age and Sex
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Hamilton 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 55-64.
Hamilton County, Ohio Marital Status by Race
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Hamilton County, Ohio Marital Status
Hamilton County, Ohio Veterans by War
Hamilton County, Ohio Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 29,202 | 6.65% |
| Black | 9,590 | 6.36% |
| Hispanic | 623 | 3.94% |
| 2+ Races | 593 | 4.77% |
| Asian | 183 | 1.06% |
| Other Race | 84 | 1.82% |
| Native American | 53 | 7.18% |
| Islander | 37 | 10.95% |
Hamilton County, Ohio Veterans by Race
Hamilton County, Ohio Veterans by Education
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8.19%
Veteran Poverty Rate
26.53%
Veteran Disability Rate
Hamilton County, Ohio Veterans by Education
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66.6%
Labor Force Participation
63%
Employment Rate
5.4%
Unemployment Rate
Hamilton County, Ohio Employment by Age
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Hamilton County, Ohio Employment by Race
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Hamilton 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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94.27%
Native Born
5.73%
Foreign Born
3.08%
Non Citizen
2.66%
Naturalized
Place of Birth
94.27% of Hamilton County, Ohio residents were born in the United States, with 71.74% having been born in Ohio. 3.08% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Hamilton 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