Kendall County, Illinois Population 2021

Kendall County, Illinois's estimated population is 131,536 with a growth rate of 0.98% in the past year according to the most recent United States census data. Kendall County, Illinois is the 17th largest county in Illinois. The 2010 Population was 115,373 and has seen a growth of 14.01% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021131,5361,2730.98%
2020130,2631,2730.99%
2019128,9901,2731.00%
2018127,7171,5651.24%
2017126,1521,6171.30%
2016124,5351,6571.35%
2015122,8781,5041.24%
2014121,3741,8081.51%
2013119,5661,3201.12%
2012118,2461,4321.23%
2011116,8141,4411.25%
2010115,37375,960192.73%
199039,4132,2115.94%
198037,20210,82841.06%
197026,3748,83450.36%
196017,5405,42544.78%
195012,1151,0109.10%
194011,1055505.21%
193010,5554814.77%
192010,074-703-6.52%
191010,777-690-6.02%
190011,467-639-5.28%
189012,106-977-7.47%
188013,0836845.52%
187012,399-675-5.16%
186013,0745,34469.13%
18507,7300.00%
2021 Growth Rate
0.98%
County Website
Founded
1841
County Seat
2010 Population
115,373
Growth Since 2010
14.01%
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Kendall County, Illinois Population Growth

Population by Race

Race Population Percentage
White102,60581.40%
Black or African American9,3397.41%
Some Other Race6,5325.18%
Asian4,0453.21%
Two or More Races3,3882.69%
American Indian and Alaska Native1450.12%
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Kendall County, Illinois Population by Race

Kendall County, Illinois Population Pyramid $2021

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Kendall County, Illinois Median Age

35.2


Total

34.4


Male

35.9


Female

Kendall County, Illinois Adults

There are 89,708 adults, (12,753 of whom are seniors) in Kendall County, Illinois.

Kendall County, Illinois Age Dependency

63.8

Age Dependency Ratio

16.6

Old Age Dependency Ratio

47.2

Child Dependency Ratio

Kendall County, Illinois Sex Ratio

Female

63,937

50.72%

Male

62,117

49.28%

Kendall County, Illinois Population by Age

Kendall County, Illinois Renter vs Owner Occupied by Household Type

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Kendall County, Illinois Household Types

Type Owner Renter
Married90.4%9.6%
All83.6%16.4%
Male78%22%
Non Family74.1%25.9%
Female66.7%33.3%

83.6%

Rate of Home Ownership

Kendall County, Illinois Households and Families

Type Count Average Size Owned
All40,7213.0983.6
Married25,1093.5690.4
Non Family8,6601.2874.1
Female4,4633.5566.7
Male2,4893.7278

3.49

Average Family Size

3.09

Average Household Size

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Kendall County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2,5813.26%
9th to 12th Grade3,4054.30%
High School Graduate18,12722.88%
Some College18,20422.98%
Associates Degree8,25510.42%
Bachelors Degree17,95822.67%
Graduate Degree10,70013.50%
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Kendall County, Illinois Educational Attainment by Sex (over 25)

Kendall County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White58,37156,58922,842
Hispanic12,5008,7772,433
Black5,4005,0331,563
Other Race3,9342,342440
Asian2,5392,3851,614
2+ Races1,116971334
Native American807958

The highest rate of high school graduation is among native american people with a rate of 98.75%.

The highest rate of bachelors degrees is among native american people with a rate of 72.50%.

Kendall County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$50,932$63,889$37,834
Less Than 9th Grade$30,453$35,657$23,218
High School Graduate$41,798$53,059$30,183
Some College$43,412$62,550$31,484
Bachelors Degree$65,762$77,468$50,683
Graduate Degree$74,141$95,179$63,242

$50,932

Average Earnings

$63,889

Average Male

$37,834

Average Female

Kendall County, Illinois Earnings by Educational Attainment

Kendall County, Illinois Language by Age

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Kendall County, Illinois Language

81.73% of Kendall County, Illinois residents speak only English, while 18.27% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.84% of the population.

Kendall County, Illinois Language

Kendall County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White87,4313,1193.57%
Black9,2411,24213.44%
Hispanic23,3071,0154.35%
Multiple3,3882397.05%
Asian3,9421253.17%
Other6,522510.78%

4.50%

Overall Poverty Rate

3.61%

Male Poverty Rate

5.36%

Female Poverty Rate

Poverty in Kendall County, Illinois

The race most likely to be in poverty in Kendall County, Illinois is Black, with 13.44% below the poverty level.

The race least likely to be in poverty in Kendall County, Illinois is Other, with 0.78% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.79%. Among those working part-time, it was 7.24%, and for those that did not work, the poverty rate was 8.35%.

Kendall County, Illinois Poverty

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Name Poverty
High School5.90%
Less Than 9th Grade5.82%
Some College4.15%
Bachelors or Greater1.85%

Kendall County, Illinois Poverty Rate by Education

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Rate Poverty
Female Unemployed23.17%
Male Unemployed16.27%
Female Employed3.61%
Male Employed1.57%

Kendall County, Illinois Poverty Rate by Employment Status and Sex

Kendall County, Illinois Income by Household Type

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Name Median Mean
Households$96,563$110,975
Families$105,313$120,827
Married Families$116,787-
Non Families$57,054$66,702
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Income by Household Type

Kendall County, Illinois Marital Status

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Marriage Rates

56.3%

Overall Marriage Rate

57.0%

Male Marriage Rate

55.5%

Female Marriage Rate

Kendall County, Illinois Married by Age and Sex

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Kendall County, Illinois 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.

Kendall County, Illinois Marital Status by Race

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Kendall County, Illinois Marital Status

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4,918

Number of Veterans

4,511

Male Veterans

407

Female Veterans

War Veterans
Vietnam1,755
Second Gulf War1,181
First Gulf War950
Korea322
World War II115

Kendall County, Illinois Veterans by War

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Age Group Veterans
65 to 741,391
35 to 541,279
75+958
55 to 64666
18 to 34624

Kendall County, Illinois Veterans by Age

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Name Veterans % of Total
White4,4396.01%
Hispanic3852.53%
Black2133.31%
Asian1043.50%
2+ Races835.41%
Other Race791.67%

Kendall County, Illinois Veterans by Race

Kendall County, Illinois Veterans by Education

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7.66%

Veteran Poverty Rate

22.13%

Veteran Disability Rate

Kendall County, Illinois Veterans by Education

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73.4%

Labor Force Participation

70.1%

Employment Rate

4.4%

Unemployment Rate

Kendall County, Illinois Employment by Age

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Kendall County, Illinois Employment by Race

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Kendall County, Illinois 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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73.95%

Born in Kendall County, Illinois

90.54%

Native Born

9.46%

Foreign Born

4.36%

Non Citizen

5.10%

Naturalized

Place of Birth

90.54% of Kendall County, Illinois residents were born in the United States, with 73.95% having been born in Illinois. 4.36% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Kendall County, Illinois 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