Kendall County, Illinois Population 2020

Kendall County, Illinois's estimated population is 126,272 with a growth rate of 1.35% in the past year according to the most recent United States census data. Kendall County, Illinois is the 16th largest county in Illinois.

Year Population Growth Growth Rate
2018127,9151,6431.30%
2017126,2721,6801.35%
2016124,5921,6551.35%
2015122,9371,5241.26%
2014121,4131,8191.52%
2013119,5941,3371.13%
2012118,2571,4441.24%
2011116,8131,4361.24%
2010115,37775,964192.74%
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%

How Many People Live in Kendall County, Illinois?

126,272

Population by Race

Race Population Percentage
White102,61582.34%
Black or African American8,7757.04%
Some Other Race5,4794.40%
Asian4,1693.35%
Two or More Races3,4282.75%
American Indian and Alaska Native1600.13%

Kendall County, Illinois Population Pyramid 2020

Kendall County, Illinois Median Age

34.9


Total

34


Male

35.6


Female

Kendall County, Illinois Adults

There are 88,284 adults, (11,902 of whom are seniors) in Kendall County, Illinois.

Kendall County, Illinois Age Dependency

63.2

Age Dependency Ratio

15.6

Old Age Dependency Ratio

47.6

Child Dependency Ratio

Kendall County, Illinois Sex Ratio

Female

62,865

50.44%

Male

61,761

49.56%

Kendall County, Illinois Households and Families

Kendall County, Illinois Renter vs Owner Occupied by Household Type

Kendall County, Illinois Household Types

Type Owner Renter
Married88.9%11.1%
All83%17%
Male79.4%20.6%
Non Family73%27%
Female69.9%30.1%

83.0%

Rate of Home Ownership

Type Count Average Size Owned
All40,4073.0883
Married25,2483.5488.9
Non Family8,4601.2973
Female4,2463.5169.9
Male2,4533.7179.4

3.46

Average Family Size

3.08

Average Household Size

5.9%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

Kendall County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade2,6423.38%
9th to 12th Grade3,5054.49%
High School Graduate18,27923.39%
Some College18,43123.59%
Associates Degree7,6249.76%
Bachelors Degree17,32122.17%
Graduate Degree10,33213.22%

Kendall County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White58,12356,30922,417
Hispanic11,8428,1162,428
Black5,0104,5851,287
Other Race3,2311,532291
Asian2,7872,5911,318
Multiple Races1,095836249
Native American124107107

The highest rate of high school graduation is among white people with a rate of 96.88%.

The highest rate of bachelors degrees is among native american people with a rate of 86.29%.

Name Average Male Female
Overall$49,771$61,791$37,179
Less Than High School$28,913$35,251$24,277
High School Grad$40,154$49,933$29,378
Some College$43,152$61,213$31,627
Bachelors Degree$63,877$75,733$50,742
Graduate Degree$70,478$95,283$61,637

$49,771

Average Earnings

$61,791

Average Male

$37,179

Average Female

Kendall County, Illinois Language

Kendall County, Illinois Language by Age

Kendall County, Illinois Language

81.93% of Kendall County, Illinois residents speak only English, while 18.07% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 12.54% of the population.

Kendall County, Illinois Poverty

Kendall County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White87,4633,5824.10%
Hispanic22,3531,7217.70%
Black8,6501,09112.61%
Multiple3,4282597.56%
Other5,4712454.48%
Asian4,100962.34%

5.32%

Overall Poverty Rate

4.63%

Male Poverty Rate

6.00%

Female Poverty Rate

Poverty in Kendall County, Illinois

The race most likely to be in poverty in Kendall County, Illinois is Black, with 12.61% below the poverty level.

The race least likely to be in poverty in Kendall County, Illinois is Asian, with 2.34% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.84%. Among those working part-time, it was 8.41%, and for those that did not work, the poverty rate was 10.14%.

Name Poverty
Less Than High School11.55%
High School5.79%
Some College4.55%
Bachelors or Greater1.80%
Name Poverty
Male Unemployed16.54%
Female Unemployed15.82%
Female Employed4.16%
Male Employed2.10%

Kendall County, Illinois Income

Kendall County, Illinois Income by Household Type

Name Median Mean
Households$91,764$104,526
Families$99,635$113,334
Married Families$106,708-
Non Families$52,790$63,298

Kendall County, Illinois Marital Status

Kendall County, Illinois Marital Status

Marriage Rates

57.9%

Overall Marriage Rate

58.4%

Male Marriage Rate

57.4%

Female Marriage Rate

Kendall County, Illinois Married by Age and Sex

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

Kendall County, Illinois Veterans

5,467

Number of Veterans

5,038

Male Veterans

429

Female Veterans

War Veterans
Vietnam1,927
Second Gulf War1,274
First Gulf War1,082
Korea376
World War II110

Kendall County, Illinois Veterans by Race

Name Veterans % of Total
White4,9146.68%
Black2824.59%
Hispanic2381.65%
2 or More1479.79%
Other812.12%
Asian431.40%

Kendall County, Illinois Veterans by Education

6.85%

Veteran Poverty Rate

23.14%

Veteran Disability Rate

Kendall County, Illinois Employment Status

73.1%

Labor Force Participation

69.5%

Employment Rate

4.9%

Unemployment Rate

Kendall County, Illinois Place of Birth

Origin of Non Citizens

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

Origin of Naturalized Citizens

73.49%

Born in Illinois

90.70%

Native Born

9.30%

Foreign Born

3.95%

Non Citizen

Place of Birth

90.70% of Kendall County, Illinois residents were born in the United States, with 73.49% having been born in Illinois. 3.95% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Population of Cities in Kendall County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Aurora 19794720111031631.60%
Joliet 1475331482627290.49%
Plainfield 398504293330837.74%
Oswego 3043134571414013.60%
Montgomery 183031952312206.67%
Yorkville1691118833192211.37%
Plano10846113585124.72%
Minooka 10924112543303.02%
Sandwich 74147358-56-0.76%
Newark9811026454.59%
Millington 66566500.00%
Millbrook325343185.54%
Lisbon297313165.39%
Plattville245259145.71%
  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