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
2021821,5292,0280.25%
2020819,5012,0280.25%
2019817,4732,0280.25%
2018815,4451,2750.16%
2017814,1702,8380.35%
2016811,3321,8050.22%
2015809,5271,9100.24%
2014807,6172,4350.30%
2013805,1822,7730.35%
2012802,4091,7510.22%
2011800,658-1,620-0.20%
2010802,278-63,950-7.38%
1990866,228-6,996-0.80%
1980873,224-50,794-5.50%
1970924,01859,8976.93%
1960864,121140,16919.36%
1950723,952101,96516.39%
1940621,98732,6315.54%
1930589,35695,67819.38%
1920493,67832,9467.15%
1910460,73251,25312.52%
1900409,47934,9069.32%
1890374,57361,19919.53%
1880313,37453,00420.36%
1870260,37043,96020.31%
1860216,41059,56637.98%
1850156,84476,69995.70%
184080,14527,82853.19%
183052,31720,55364.71%
182031,76416,506108.18%
181015,2585663.85%
180014,6920.00%
2021 Growth Rate
0.25%
County Website
State
Founded
January 2, 1790
County Seat
2010 Population
802,278
Growth Since 2010
2.40%
map placeholder

Hamilton County, Ohio Population Growth

Population by Race

Race Population Percentage
White548,29967.39%
Black or African American207,83925.55%
Two or More Races26,6633.28%
Asian21,5502.65%
Some Other Race7,8180.96%
American Indian and Alaska Native9040.11%
Native Hawaiian and Other Pacific Islander5160.06%
Loading...

Hamilton County, Ohio Population by Race

Hamilton County, Ohio Population Pyramid $2021

Loading...

Hamilton County, Ohio Median Age

36.8


Total

35.3


Male

38.4


Female

Hamilton County, Ohio Adults

There are 625,690 adults, (122,451 of whom are seniors) in Hamilton County, Ohio.

Hamilton County, Ohio Age Dependency

61.7

Age Dependency Ratio

24.3

Old Age Dependency Ratio

37.3

Child Dependency Ratio

Hamilton County, Ohio Sex Ratio

Female

420,851

51.73%

Male

392,738

48.27%

Hamilton County, Ohio Population by Age

Hamilton County, Ohio Renter vs Owner Occupied by Household Type

Loading...

Hamilton County, Ohio Household Types

Type Owner Renter
Married83.9%16.1%
All57.9%42.1%
Male51.8%48.2%
Non Family41%59%
Female39.9%60.1%

57.9%

Rate of Home Ownership

Hamilton County, Ohio Households and Families

Type Count Average Size Owned
All341,8732.3357.9
Non Family144,7291.2541
Married132,2553.0983.9
Female49,7383.1739.9
Male15,1513.1951.8

3.04

Average Family Size

2.33

Average Household Size

Loading...

Hamilton County, Ohio Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade13,3862.44%
9th to 12th Grade34,0166.19%
High School Graduate144,41826.29%
Some College103,06618.76%
Associates Degree46,1688.40%
Bachelors Degree125,10722.77%
Graduate Degree83,21915.15%
Loading...

Hamilton County, Ohio Educational Attainment by Sex (over 25)

Hamilton County, Ohio Educational Attainment by Race

Loading...
Race Total High School Bachelors
White381,279357,720167,980
Black130,630112,49423,235
Asian14,87013,19210,257
Hispanic13,09210,0364,039
2+ Races8,9588,0332,735
Other Race3,8652,738873
Native American713683210
Islander26021467

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

Loading...
Name Average Male Female
Overall$41,641$48,437$35,824
Less Than 9th Grade$21,147$26,547$16,381
High School Graduate$30,909$35,706$26,395
Some College$35,821$42,332$30,856
Bachelors Degree$54,322$65,420$46,121
Graduate Degree$71,313$86,466$61,139

$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

Loading...

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

Loading...
Name Total In Poverty Poverty Rate
Black203,96858,89228.87%
White518,42949,2999.51%
Hispanic26,2067,98330.46%
Multiple25,9096,63325.60%
Asian21,1232,59312.28%
Other7,6652,43531.77%
Islander51631160.27%
Native89910311.46%

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

Loading...
Name Poverty
Less Than 9th Grade31.89%
High School15.25%
Some College12.14%
Bachelors or Greater4.06%

Hamilton County, Ohio Poverty Rate by Education

Loading...
Rate Poverty
Female Unemployed45.83%
Male Unemployed38.36%
Female Employed9.46%
Male Employed5.87%

Hamilton County, Ohio Poverty Rate by Employment Status and Sex

Hamilton County, Ohio Income by Household Type

Loading...
Name Median Mean
Households$57,212$83,247
Families$77,814$105,304
Married Families$102,047$131,894
Non Families$35,320$50,846
Loading...

Income by Household Type

Hamilton County, Ohio Marital Status

Loading...

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

Loading...

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

Loading...

Hamilton County, Ohio Marital Status

Loading...

39,742

Number of Veterans

36,942

Male Veterans

2,800

Female Veterans

War Veterans
Vietnam14,474
First Gulf War5,527
Second Gulf War5,341
Korea3,501
World War II1,900

Hamilton County, Ohio Veterans by War

Loading...
Age Group Veterans
65 to 7410,997
75+9,955
35 to 548,166
55 to 647,760
18 to 342,864

Hamilton County, Ohio Veterans by Age

Loading...
Name Veterans % of Total
White29,2026.65%
Black9,5906.36%
Hispanic6233.94%
2+ Races5934.77%
Asian1831.06%
Other Race841.82%
Native American537.18%
Islander3710.95%

Hamilton County, Ohio Veterans by Race

Hamilton County, Ohio Veterans by Education

Loading...

8.19%

Veteran Poverty Rate

26.53%

Veteran Disability Rate

Hamilton County, Ohio Veterans by Education

Loading...

66.6%

Labor Force Participation

63%

Employment Rate

5.4%

Unemployment Rate

Hamilton County, Ohio Employment by Age

Loading...

Hamilton County, Ohio Employment by Race

Loading...

Hamilton County, Ohio Employment by Education

Origin of Non-Citizens

Loading...

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Loading...

71.74%

Born in Hamilton County, Ohio

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

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources