Knox, Indiana Population 2021

3,549
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Knox is a city located in Starke County Indiana. It is also the county seat of Starke County. With a 2020 population of 3,549, it is the 147th largest city in Indiana and the 5742nd largest city in the United States . Knox is currently growing at a rate of 0.06% annually but its population has decreased by -4.18% since the most recent census, which recorded a population of 3,704 in 2010. Knox reached it's highest population of 3,721 in 2000. Spanning over 4 miles, Knox has a population density of 905 people per square mile.

The average household income in Knox is $46,501 with a poverty rate of 24.91%. The median rental costs in recent years comes to $626 per month, and the median house value is $83,300. The median age in Knox is 39.2 years, 34.6 years for males, and 42.8 years for females.

Knox Demographics

According to the most recent ACS, the racial composition of Knox was:

  • White: 99.33%
  • Two or more races: 0.45%
  • Black or African American: 0.11%
  • Asian: 0.11%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Other race: 0.00%
The current population of Knox, Indiana is 3,549 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 3,543.The last official US Census in 2010 recorded the population at 3,704.

Knox, Indiana Population 2021

Population by Race

Race Population Percentage
White3,53399.33%
Two or More Races160.45%
Asian40.11%
Black or African American40.11%
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Knox Population by Race

Knox Population Pyramid $2021

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Knox Median Age

39.2


Total

34.6


Male

42.8


Female

Knox Adults

There are 2,810 adults, (529 of whom are seniors) in Knox.

Knox Age Dependency

55.9

Age Dependency Ratio

23.2

Old Age Dependency Ratio

32.7

Child Dependency Ratio

Knox Sex Ratio

Female

1,779

50.01%

Male

1,778

49.99%

Knox Population by Age

Knox Renter vs Owner Occupied by Household Type

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Knox Household Types

Type Owner Renter
Married82.4%17.6%
Female66.2%33.8%
All52.2%47.8%
Non Family36.2%63.8%
Male0%100%

52.2%

Rate of Home Ownership

Knox Households and Families

Type Count Average Size Owned
All1,3612.652.2
Non Family5491.2236.2
Married4653.3682.4
Female1953.366.2
Male1524.340

3.22

Average Family Size

2.6

Average Household Size

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Knox Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2449.83%
9th to 12th Grade2188.79%
High School Graduate1,15346.47%
Some College49519.95%
Associates Degree883.55%
Bachelors Degree1807.26%
Graduate Degree1034.15%
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Knox Educational Attainment by Sex (over 25)

Knox Educational Attainment by Race

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Race Total High School Bachelors
White2,3781,933260
Hispanic958119
2+ Races999
Black41
Asian444

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

The highest rate of bachelors degrees is among asian people with a rate of 100.00%.

Knox Educational Attainment by Race

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Name Average Male Female
Overall$28,585$35,727$21,375
Less Than 9th Grade$15,438$22,250$
High School Graduate$24,671$35,205$
Some College$28,577$38,594$26,792
Bachelors Degree$45,938$75,968$33,854
Graduate Degree$76,371$$75,685

$28,585

Average Earnings

$35,727

Average Male

$21,375

Average Female

Knox Earnings by Educational Attainment

Knox Language by Age

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Knox Language

97.89% of Knox residents speak only English, while 2.11% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.25% of the population.

Knox Language

Knox Poverty by Race

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Name Total In Poverty Poverty Rate
White3,35287326.04%
Hispanic189105.29%
Black4125.00%

24.91%

Overall Poverty Rate

16.05%

Male Poverty Rate

33.73%

Female Poverty Rate

Poverty in Knox

The race most likely to be in poverty in Knox is White, with 26.04% below the poverty level.

The race least likely to be in poverty in Knox is Hispanic, with 5.29% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 7.85%. Among those working part-time, it was 29.07%, and for those that did not work, the poverty rate was 36.20%.

Knox Poverty

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Name Poverty
Less Than 9th Grade43.72%
High School30.18%
Some College8.92%
Bachelors or Greater4.95%

Knox Poverty Rate by Education

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Rate Poverty
Female Employed28.40%
Male Unemployed13.33%
Male Employed6.45%
Female Unemployed0.00%

Knox Poverty Rate by Employment Status and Sex

Knox Income by Household Type

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Name Median Mean
Households$36,628$46,501
Families$41,364$54,354
Married Families$65,919-
Non Families$19,263$29,317
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Income by Household Type

Knox Marital Status

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Marriage Rates

35.2%

Overall Marriage Rate

35.4%

Male Marriage Rate

35.0%

Female Marriage Rate

Knox Married by Age and Sex

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Knox 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.

Knox Marital Status by Race

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Knox Marital Status

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200

Number of Veterans

189

Male Veterans

11

Female Veterans

War Veterans
Vietnam107
Second Gulf War39
First Gulf War26
Korea12
World War II

Knox Veterans by War

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Age Group Veterans
65 to 7477
55 to 6451
35 to 5434
75+23
18 to 3415

Knox Veterans by Age

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Knox Veterans by Race

Knox Veterans by Education

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5.50%

Veteran Poverty Rate

35.00%

Veteran Disability Rate

Knox Veterans by Education

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50.9%

Labor Force Participation

46.9%

Employment Rate

8%

Unemployment Rate

Knox Employment by Age

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Knox Employment by Race

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Knox 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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78.89%

Born in Knox

99.10%

Native Born

0.90%

Foreign Born

0.39%

Non Citizen

0.51%

Naturalized

Place of Birth

99.10% of Knox residents were born in the United States, with 78.89% having been born in Indiana. 0.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

Knox Place of Birth

Year Population Growth Annual Growth Rate
20213,54920.06%
20203,54720.06%
20193,54520.06%
20183,543-15-0.42%
20173,558-27-0.75%
20163,585110.31%
20153,574-21-0.58%
20143,595-43-1.18%
20133,638-16-0.44%
20123,654-15-0.41%
20113,669-30-0.81%
20103,699-22-0.06%
20003,721160.04%
19903,705310.08%
19803,6741550.43%
19703,519610.18%
19603,4584241.32%
19503,0340.00%

Knox Population by Year