Hamilton County, Indiana Population 2021

Hamilton County, Indiana's estimated population is 353,411 with a growth rate of 2.23% in the past year according to the most recent United States census data. Hamilton County, Indiana is the 5th largest county in Indiana. The 2010 Population was 276,493 and has seen a growth of 27.82% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021353,4117,7002.23%
2020345,7117,7002.28%
2019338,0117,7002.33%
2018330,3117,3782.28%
2017322,9337,0312.23%
2016315,9027,4742.42%
2015308,4285,6561.87%
2014302,7725,9141.99%
2013296,8587,1112.45%
2012289,7476,3792.25%
2011283,3686,8752.49%
2010276,493167,557153.81%
1990108,93626,90932.81%
198082,02727,49550.42%
197054,53214,40035.88%
196040,13211,64140.86%
195028,4913,87715.75%
194024,6141,1704.99%
193023,444-778-3.21%
192024,222-2,804-10.38%
191027,026-2,888-9.65%
190029,9143,79114.51%
189026,1231,3225.33%
188024,8013,91918.77%
187020,8823,57220.64%
186017,3104,62636.47%
185012,6842,82928.71%
18409,8558,098460.90%
18301,7570.00%
2021 Growth Rate
2.23%
County Website
State
Founded
1823
County Seat
2010 Population
276,493
Growth Since 2010
27.82%
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Hamilton County, Indiana Population Growth

Population by Race

Race Population Percentage
White280,36386.77%
Asian19,3365.98%
Black or African American12,7643.95%
Two or More Races7,9122.45%
Some Other Race2,0540.64%
American Indian and Alaska Native6190.19%
Native Hawaiian and Other Pacific Islander690.02%
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Hamilton County, Indiana Population by Race

Hamilton County, Indiana Population Pyramid $2021

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Hamilton County, Indiana Median Age

37.1


Total

36.2


Male

37.8


Female

Hamilton County, Indiana Adults

There are 234,567 adults, (38,362 of whom are seniors) in Hamilton County, Indiana.

Hamilton County, Indiana Age Dependency

64.7

Age Dependency Ratio

19.6

Old Age Dependency Ratio

45.1

Child Dependency Ratio

Hamilton County, Indiana Sex Ratio

Female

165,415

51.19%

Male

157,702

48.81%

Hamilton County, Indiana Population by Age

Hamilton County, Indiana Renter vs Owner Occupied by Household Type

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Hamilton County, Indiana Household Types

Type Owner Renter
Married89%11%
All76.9%23.1%
Male62.1%37.9%
Non Family57.1%42.9%
Female56.4%43.6%

76.9%

Rate of Home Ownership

Hamilton County, Indiana Households and Families

Type Count Average Size Owned
All119,7892.6876.9
Married74,0223.2489
Non Family31,4491.2357.1
Female9,9322.9856.4
Male4,3862.9962.1

3.16

Average Family Size

2.68

Average Household Size

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Hamilton County, Indiana Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,6490.79%
9th to 12th Grade5,0992.43%
High School Graduate31,34614.93%
Some College33,18915.81%
Associates Degree14,1466.74%
Bachelors Degree78,26837.27%
Graduate Degree46,28622.04%
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Hamilton County, Indiana Educational Attainment by Sex (over 25)

Hamilton County, Indiana Educational Attainment by Race

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Race Total High School Bachelors
White179,829175,285106,308
Asian12,50311,6259,666
Black8,1737,9404,162
Hispanic6,9305,9512,962
2+ Races2,4532,3571,561
Other Race1,067863299
Native American391391132
Islander385

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 77.31%.

Hamilton County, Indiana Educational Attainment by Race

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Name Average Male Female
Overall$59,020$76,355$44,842
Less Than 9th Grade$27,634$35,243$18,450
High School Graduate$33,211$43,243$27,035
Some College$43,882$53,595$34,870
Bachelors Degree$67,710$86,307$49,593
Graduate Degree$91,244$111,896$69,810

$59,020

Average Earnings

$76,355

Average Male

$44,842

Average Female

Hamilton County, Indiana Earnings by Educational Attainment

Hamilton County, Indiana Language by Age

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Hamilton County, Indiana Language

90.40% of Hamilton County, Indiana residents speak only English, while 9.60% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 3.72% of the population.

Hamilton County, Indiana Language

Hamilton County, Indiana Poverty by Race

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Name Total In Poverty Poverty Rate
White268,77110,4653.89%
Hispanic12,8621,47911.50%
Multiple7,87499612.65%
Asian19,3038944.63%
Black12,5398366.67%
Other1,98731315.75%
Native602203.32%

4.58%

Overall Poverty Rate

4.01%

Male Poverty Rate

5.12%

Female Poverty Rate

Poverty in Hamilton County, Indiana

The race most likely to be in poverty in Hamilton County, Indiana is Other, with 15.75% below the poverty level.

The race least likely to be in poverty in Hamilton County, Indiana is Native, with 3.32% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.99%. Among those working part-time, it was 7.53%, and for those that did not work, the poverty rate was 8.65%.

Hamilton County, Indiana Poverty

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Name Poverty
Less Than 9th Grade15.52%
High School9.19%
Some College4.87%
Bachelors or Greater1.69%

Hamilton County, Indiana Poverty Rate by Education

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Rate Poverty
Female Unemployed19.30%
Male Unemployed13.41%
Female Employed3.51%
Male Employed2.09%

Hamilton County, Indiana Poverty Rate by Employment Status and Sex

Hamilton County, Indiana Income by Household Type

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Name Median Mean
Households$98,173$131,790
Families$116,580$152,186
Married Families$128,967$167,556
Non Families$53,539$70,850
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Income by Household Type

Hamilton County, Indiana Marital Status

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Marriage Rates

60.8%

Overall Marriage Rate

63.1%

Male Marriage Rate

58.7%

Female Marriage Rate

Hamilton County, Indiana Married by Age and Sex

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Hamilton County, Indiana Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Hamilton County, Indiana Marital Status by Race

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Hamilton County, Indiana Marital Status

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14,009

Number of Veterans

12,856

Male Veterans

1,153

Female Veterans

War Veterans
Vietnam4,184
First Gulf War3,375
Second Gulf War2,538
Korea1,226
World War II506

Hamilton County, Indiana Veterans by War

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Age Group Veterans
35 to 543,962
65 to 743,428
75+3,237
55 to 642,187
18 to 341,195

Hamilton County, Indiana Veterans by Age

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Name Veterans % of Total
White12,5356.08%
Black7678.37%
Hispanic6377.79%
Asian3252.34%
2+ Races2166.34%
Other Race946.99%
Native American398.88%
Islander3347.83%

Hamilton County, Indiana Veterans by Race

Hamilton County, Indiana Veterans by Education

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4.32%

Veteran Poverty Rate

28.10%

Veteran Disability Rate

Hamilton County, Indiana Veterans by Education

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72.8%

Labor Force Participation

70.7%

Employment Rate

2.8%

Unemployment Rate

Hamilton County, Indiana Employment by Age

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Hamilton County, Indiana Employment by Race

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Hamilton County, Indiana 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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58.61%

Born in Hamilton County, Indiana

91.92%

Native Born

8.08%

Foreign Born

3.53%

Non Citizen

4.54%

Naturalized

Place of Birth

91.92% of Hamilton County, Indiana residents were born in the United States, with 58.61% having been born in Indiana. 3.53% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Hamilton County, Indiana 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