DeKalb County, Illinois Population 2021

DeKalb County, Illinois's estimated population is 105,993 with a growth rate of 0.52% in the past year according to the most recent United States census data. DeKalb County, Illinois is the 20th largest county inIllinois. The 2010 Population was 105,145 and has seen a growth of 0.81% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
2021105,9935480.52%
2020105,4455480.52%
2019104,8975480.53%
2018104,349400.04%
2017104,3092290.22%
2016104,080-115-0.11%
2015104,195-365-0.35%
2014104,5603580.34%
2013104,202-163-0.16%
2012104,365-85-0.08%
2011104,450-695-0.66%
2010105,14527,21334.92%
199077,9323,3084.43%
198074,6242,9704.14%
197071,65419,94038.56%
196051,71410,93326.81%
195040,7816,39318.59%
194034,3881,7445.34%
193032,6441,3054.16%
192031,339-2,118-6.33%
191033,4571,7015.36%
190031,7564,69017.33%
189027,0662981.11%
188026,7683,50315.06%
187023,2654,17921.90%
186019,08611,546153.13%
18507,5405,843344.31%
18401,6970.00%
2021 Growth Rate
0.52% (548)
County Website
Founded
March 4, 1837
County Seat
2010 Population
105,145
Growth Since 2010
0.81% (848)
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DeKalb County, Illinois Population Growth

Population by Race

Race Population Percentage
White87,64983.98%
Black or African American8,2587.91%
Some Other Race3,4283.28%
Two or More Races2,5502.44%
Asian2,3792.28%
American Indian and Alaska Native1020.10%
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DeKalb County, Illinois Population by Race

DeKalb County, Illinois Population Pyramid $2021

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DeKalb County, Illinois Median Age

31.1


Total

30.4


Male

32.2


Female

DeKalb County, Illinois Adults

There are 81,843 adults, (12,682 of whom are seniors) in DeKalb County, Illinois.

DeKalb County, Illinois Age Dependency

50.9

Age Dependency Ratio

18.3

Old Age Dependency Ratio

32.6

Child Dependency Ratio

DeKalb County, Illinois Sex Ratio

Female

52,613

50.41%

Male

51,753

49.59%

DeKalb County, Illinois Population by Age

DeKalb County, Illinois Renter vs Owner Occupied by Household Type

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DeKalb County, Illinois Household Types

Type Owner Renter
Female33.5%66.5%
Non Family36.9%63.1%
All57%43%
Male58.2%41.8%
Married80.8%19.2%

57.0%

Rate of Home Ownership

DeKalb County, Illinois Households and Families

Type Count Average Size Owned
All38,1502.6257
Married16,8953.2480.8
Non Family14,9861.5636.9
Female4,3533.4433.5
Male1,9163.5658.2

3.19

Average Family Size

2.62

Average Household Size

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DeKalb County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,9523.18%
9th to 12th Grade2,7754.52%
High School Graduate15,28924.90%
Some College14,80024.11%
Associates Degree6,72410.95%
Bachelors Degree12,40720.21%
Graduate Degree7,44912.13%
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DeKalb County, Illinois Educational Attainment by Sex (over 25)

DeKalb County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White51,31948,36916,853
Hispanic5,2363,838776
Black3,0242,8001,065
Other Race1,7371,073141
Asian1,1861,137904
2+ Races735629270
Native American444432

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 76.22%.

DeKalb County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$40,996$51,182$31,313
Less Than 9th Grade$25,081$26,683$18,939
High School Graduate$34,215$43,733$22,605
Some College$39,349$51,187$29,243
Bachelors Degree$50,505$62,989$40,705
Graduate Degree$61,146$67,321$55,063

$40,996

Average Earnings

$51,182

Average Male

$31,313

Average Female

DeKalb County, Illinois Earnings by Educational Attainment

DeKalb County, Illinois Language by Age

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DeKalb County, Illinois Language

88.10% of DeKalb County, Illinois residents speak only English, while 11.90% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 7.19% of the population.

DeKalb County, Illinois Language

DeKalb County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White77,7409,63912.40%
Black7,0002,99542.79%
Hispanic10,9792,26020.58%
Asian2,1751,12251.59%
Other3,34162118.59%
Multiple2,32861726.50%
Native572035.09%

16.58%

Overall Poverty Rate

15.14%

Male Poverty Rate

18.00%

Female Poverty Rate

Poverty in DeKalb County, Illinois

The race most likely to be in poverty in DeKalb County, Illinois is Asian, with 51.59% below the poverty level.

The race least likely to be in poverty in DeKalb County, Illinois is White, with 12.40% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.23%. Among those working part-time, it was 28.00%, and for those that did not work, the poverty rate was 24.01%.

DeKalb County, Illinois Poverty

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Name Poverty
Less Than 9th Grade16.66%
High School11.56%
Some College9.11%
Bachelors or Greater7.25%

DeKalb County, Illinois Poverty Rate by Education

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Rate Poverty
Female Unemployed46.92%
Male Unemployed46.72%
Female Employed12.88%
Male Employed7.63%

DeKalb County, Illinois Poverty Rate by Employment Status and Sex

DeKalb County, Illinois Income by Household Type

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Name Median Mean
Households$63,317$77,444
Families$81,027$94,634
Married Families$96,391$109,623
Non Families$35,629$47,065
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Income by Household Type

DeKalb County, Illinois Marital Status

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Marriage Rates

41.4%

Overall Marriage Rate

41.8%

Male Marriage Rate

41.1%

Female Marriage Rate

DeKalb County, Illinois Married by Age and Sex

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DeKalb County, Illinois 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 45-54.

DeKalb County, Illinois Marital Status by Race

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DeKalb County, Illinois Marital Status

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5,251

Number of Veterans

4,844

Male Veterans

407

Female Veterans

War Veterans
Vietnam1,831
Second Gulf War1,069
First Gulf War834
Korea453
World War II169

DeKalb County, Illinois Veterans by War

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Age Group Veterans
65 to 741,448
35 to 541,274
75+1,098
55 to 64738
18 to 34693

DeKalb County, Illinois Veterans by Age

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Name Veterans % of Total
White4,9447.08%
Hispanic3324.42%
Black1732.93%
2+ Races745.18%
Other Race602.54%

DeKalb County, Illinois Veterans by Race

DeKalb County, Illinois Veterans by Education

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6.69%

Veteran Poverty Rate

26.16%

Veteran Disability Rate

DeKalb County, Illinois Veterans by Education

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67.8%

Labor Force Participation

63.5%

Employment Rate

6.3%

Unemployment Rate

DeKalb County, Illinois Employment by Age

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DeKalb County, Illinois Employment by Race

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DeKalb 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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76.18%

Born in DeKalb County, Illinois

93.51%

Native Born

6.49%

Foreign Born

4.06%

Non Citizen

2.43%

Naturalized

Place of Birth

93.51% of DeKalb County, Illinois residents were born in the United States, with 76.18% having been born in Illinois. 4.06% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

DeKalb 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