Knox County, Indiana Population 2021

Knox County, Indiana's estimated population is 36,590 with a growth rate of -0.01% in the past year according to the most recent United States census data. Knox County, Indiana is the 43rd largest county in Indiana. The 2010 Population was 38,391 and has seen a growth of -4.69% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202136,590-2-0.01%
202036,592-2-0.01%
201936,594-2-0.01%
201836,596-448-1.21%
201737,044-289-0.77%
201637,333-427-1.13%
201537,760-201-0.53%
201437,961-94-0.25%
201338,055810.21%
201237,974-499-1.30%
201138,473820.21%
201038,391-1,493-3.74%
199039,884-1,954-4.67%
198041,8382920.70%
197041,546-15-0.04%
196041,561-1,854-4.27%
195043,415-558-1.27%
194043,9731600.37%
193043,813-2,382-5.16%
192046,1957,01217.90%
191039,1836,43719.66%
190032,7464,70216.77%
189028,0441,7206.53%
188026,3244,76222.09%
187021,5625,50634.29%
186016,0564,97244.86%
185011,0844274.01%
184010,6574,13263.33%
18306,5251,08820.01%
18205,437-2,508-31.57%
18107,9455,428215.65%
18002,5170.00%
2021 Growth Rate
-0.01%
County Website
State
Founded
June 6, 1790
County Seat
2010 Population
38,391
Growth Since 2010
-4.69%
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Knox County, Indiana Population Growth

Population by Race

Race Population Percentage
White34,88194.11%
Black or African American1,0362.80%
Two or More Races5371.45%
Asian3360.91%
Some Other Race2020.54%
American Indian and Alaska Native470.13%
Native Hawaiian and Other Pacific Islander260.07%
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Knox County, Indiana Population by Race

Knox County, Indiana Population Pyramid $2021

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Knox County, Indiana Median Age

37.9


Total

35.7


Male

40.5


Female

Knox County, Indiana Adults

There are 29,120 adults, (6,494 of whom are seniors) in Knox County, Indiana.

Knox County, Indiana Age Dependency

63.8

Age Dependency Ratio

28.7

Old Age Dependency Ratio

35.1

Child Dependency Ratio

Knox County, Indiana Sex Ratio

Female

18,248

49.23%

Male

18,817

50.77%

Knox County, Indiana Population by Age

Knox County, Indiana Renter vs Owner Occupied by Household Type

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Knox County, Indiana Household Types

Type Owner Renter
Married80.7%19.3%
All64.6%35.4%
Non Family52.4%47.6%
Male52.1%47.9%
Female42.5%57.5%

64.6%

Rate of Home Ownership

Knox County, Indiana Households and Families

Type Count Average Size Owned
All15,0382.3264.6
Married7,0812.9780.7
Non Family5,4611.2252.4
Female1,7212.8342.5
Male7752.9752.1

2.85

Average Family Size

2.32

Average Household Size

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Knox County, Indiana Households by Type

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Education Attained Count Percentage
Less Than 9th Grade6312.57%
9th to 12th Grade2,1418.74%
High School Graduate8,76435.76%
Some College4,82119.67%
Associates Degree4,00416.34%
Bachelors Degree2,48510.14%
Graduate Degree1,6646.79%
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Knox County, Indiana Educational Attainment by Sex (over 25)

Knox County, Indiana Educational Attainment by Race

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Race Total High School Bachelors
White23,20920,6663,957
Hispanic40631017
Black391373
2+ Races22516440
Asian210207129
Other Race9384
Native American43186
Islander26

The highest rate of high school graduation is among asian people with a rate of 98.57%.

The highest rate of bachelors degrees is among asian people with a rate of 61.43%.

Knox County, Indiana Educational Attainment by Race

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Name Average Male Female
Overall$34,116$42,067$27,898
Less Than 9th Grade$24,844$27,016$21,667
High School Graduate$30,329$36,970$22,725
Some College$35,837$47,039$26,940
Bachelors Degree$48,333$60,946$35,286
Graduate Degree$64,033$68,333$60,486

$34,116

Average Earnings

$42,067

Average Male

$27,898

Average Female

Knox County, Indiana Earnings by Educational Attainment

Knox County, Indiana Language by Age

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Knox County, Indiana Language

97.58% of Knox County, Indiana residents speak only English, while 2.42% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.01% of the population.

Knox County, Indiana Language

Knox County, Indiana Poverty by Race

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Name Total In Poverty Poverty Rate
White32,5214,53813.95%
Hispanic69742360.69%
Multiple50718937.28%
Asian33617953.27%
Other19613267.35%
Black562437.65%
Native43613.95%

15.52%

Overall Poverty Rate

13.77%

Male Poverty Rate

17.25%

Female Poverty Rate

Poverty in Knox County, Indiana

The race most likely to be in poverty in Knox County, Indiana is Other, with 67.35% below the poverty level.

The race least likely to be in poverty in Knox County, Indiana is Black, with 7.65% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.36%. Among those working part-time, it was 19.27%, and for those that did not work, the poverty rate was 25.81%.

Knox County, Indiana Poverty

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Name Poverty
Less Than 9th Grade28.35%
High School13.54%
Some College7.55%
Bachelors or Greater4.77%

Knox County, Indiana Poverty Rate by Education

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Rate Poverty
Male Unemployed40.36%
Female Unemployed36.81%
Female Employed9.63%
Male Employed6.82%

Knox County, Indiana Poverty Rate by Employment Status and Sex

Knox County, Indiana Income by Household Type

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Name Median Mean
Households$47,380$63,212
Families$63,665$75,580
Married Families$76,960-
Non Families$29,388$39,660
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Income by Household Type

Knox County, Indiana Marital Status

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Marriage Rates

48.5%

Overall Marriage Rate

48.0%

Male Marriage Rate

49.0%

Female Marriage Rate

Knox County, Indiana Married by Age and Sex

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Knox 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 45-54.

Knox County, Indiana Marital Status by Race

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Knox County, Indiana Marital Status

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2,351

Number of Veterans

2,108

Male Veterans

243

Female Veterans

War Veterans
Vietnam793
Second Gulf War440
First Gulf War388
Korea153
World War II63

Knox County, Indiana Veterans by War

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Age Group Veterans
65 to 74733
35 to 54597
75+488
55 to 64304
18 to 34229

Knox County, Indiana Veterans by Age

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Name Veterans % of Total
White2,2538.21%
2+ Races5719.00%
Hispanic5411.69%
Black414.69%

Knox County, Indiana Veterans by Race

Knox County, Indiana Veterans by Education

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11.28%

Veteran Poverty Rate

37.59%

Veteran Disability Rate

Knox County, Indiana Veterans by Education

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63%

Labor Force Participation

60.5%

Employment Rate

4.1%

Unemployment Rate

Knox County, Indiana Employment by Age

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Knox County, Indiana Employment by Race

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Knox 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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79.00%

Born in Knox County, Indiana

98.70%

Native Born

1.30%

Foreign Born

0.72%

Non Citizen

0.57%

Naturalized

Place of Birth

98.70% of Knox County, Indiana residents were born in the United States, with 79.00% having been born in Indiana. 0.72% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Knox 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