DeKalb County, Illinois Population 2019

DeKalb County, Illinois's estimated population is 104,151 with a growth rate of 0.16% in the past year according to the most recent United States census data. DeKalb County, Illinois is the 20th largest county in Illinois.

Year Population Growth Growth Rate
2018104,143-8-0.01%
2017104,1511670.16%
2016103,984-170-0.16%
2015104,154-416-0.40%
2014104,5703630.35%
2013104,207-153-0.15%
2012104,360-78-0.07%
2011104,438-709-0.67%
2010105,14727,21534.92%
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%

How Many People Live in DeKalb County, Illinois?

104,151

Population by Race

Race Population Percentage
White88,04284.27%
Black or African American7,7667.43%
Some Other Race3,4593.31%
Two or More Races2,6222.51%
Asian2,5232.41%
American Indian and Alaska Native610.06%

DeKalb County, Illinois Population Pyramid 2019

DeKalb County, Illinois Median Age

30.7


Total

30.1


Male

31.6


Female

DeKalb County, Illinois Adults

There are 81,726 adults, (12,032 of whom are seniors) in DeKalb County, Illinois.

DeKalb County, Illinois Age Dependency

49.9

Age Dependency Ratio

17.3

Old Age Dependency Ratio

32.6

Child Dependency Ratio

DeKalb County, Illinois Sex Ratio

Female

52,734

50.48%

Male

51,739

49.52%

DeKalb County, Illinois Households and Families

DeKalb County, Illinois Renter vs Owner Occupied by Household Type

DeKalb County, Illinois Household Types

Type Owner Renter
Married79.1%20.9%
Male59.8%40.2%
All56.5%43.5%
Non Family37.2%62.8%
Female29.6%70.4%

56.5%

Rate of Home Ownership

Type Count Average Size Owned
All37,4202.6656.5
Married17,1853.379.1
Non Family14,3321.5637.2
Female4,3723.4529.6
Male1,5313.5259.8

3.22

Average Family Size

2.66

Average Household Size

8.6%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

DeKalb County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade1,6902.76%
9th to 12th Grade2,8154.59%
High School Graduate15,94826.01%
Some College15,46425.22%
Associates Degree6,65710.86%
Bachelors Degree11,63418.97%
Graduate Degree7,11611.60%

DeKalb County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White51,40548,68215,971
Hispanic5,0023,601720
Black2,8782,577853
Asian1,6691,6481,032
Other Race1,54492851
Multiple Races557498213
Native American282819

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 native american people with a rate of 67.86%.

Name Average Male Female
Overall$36,680$44,925$30,262
Less Than High School$22,089$22,681$20,341
High School Grad$31,778$41,330$22,495
Some College$35,515$46,289$26,545
Bachelors Degree$44,793$54,945$37,287
Graduate Degree$58,242$61,455$55,964

$36,680

Average Earnings

$44,925

Average Male

$30,262

Average Female

DeKalb County, Illinois Language

DeKalb County, Illinois Language by Age

DeKalb County, Illinois Language

88.26% of DeKalb County, Illinois residents speak only English, while 11.74% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.97% of the population.

DeKalb County, Illinois Poverty

DeKalb County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White78,36010,21813.04%
Hispanic10,4863,28931.37%
Black6,4403,01246.77%
Other3,3201,14934.61%
Asian2,2721,03645.60%
Multiple2,33161026.17%
Native441431.82%

18.10%

Overall Poverty Rate

16.19%

Male Poverty Rate

19.96%

Female Poverty Rate

Poverty in DeKalb County, Illinois

The race most likely to be in poverty in DeKalb County, Illinois is Black, with 46.77% below the poverty level.

The race least likely to be in poverty in DeKalb County, Illinois is White, with 13.04% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.53%. Among those working part-time, it was 31.16%, and for those that did not work, the poverty rate was 22.76%.

Name Poverty
Less Than High School18.03%
High School11.06%
Some College10.88%
Bachelors or Greater9.54%
Name Poverty
Female Unemployed53.81%
Male Unemployed37.08%
Female Employed15.38%
Male Employed10.47%

DeKalb County, Illinois Income

DeKalb County, Illinois Income by Household Type

Name Median Mean
Households$58,343$71,296
Families$73,927$86,298
Married Families$88,700$100,468
Non Families$33,424$43,619

DeKalb County, Illinois Marital Status

DeKalb County, Illinois Marital Status

Marriage Rates

42.3%

Overall Marriage Rate

42.7%

Male Marriage Rate

41.9%

Female Marriage Rate

DeKalb County, Illinois Married by Age and Sex

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

DeKalb County, Illinois Veterans

5,041

Number of Veterans

4,685

Male Veterans

356

Female Veterans

War Veterans
Vietnam1,821
First Gulf War787
Second Gulf War770
Korea508
World War II273
Age Group Veterans
65 to 741,348
35 to 541,215
75+1,137
55 to 64847
18 to 34494

DeKalb County, Illinois Veterans by Race

Name Veterans % of Total
White4,7576.79%
Hispanic2112.93%
Black1642.91%
Other703.03%
2 or More423.14%
Asian80.34%

DeKalb County, Illinois Veterans by Education

6.06%

Veteran Poverty Rate

24.35%

Veteran Disability Rate

DeKalb County, Illinois Employment Status

68.4%

Labor Force Participation

62.5%

Employment Rate

8.6%

Unemployment Rate

DeKalb 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

75.77%

Born in Illinois

93.15%

Native Born

6.85%

Foreign Born

4.45%

Non Citizen

Place of Birth

93.15% of DeKalb County, Illinois residents were born in the United States, with 75.77% having been born in Illinois. 4.45% 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 DeKalb County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
DeKalb4411943194-925-2.10%
Sycamore17518178673491.99%
Sandwich 74147358-56-0.76%
Genoa51825194120.23%
Cortland42714326551.29%
Hinckley20702057-13-0.63%
Somonauk 19011882-19-1.00%
Kirkland17441732-12-0.69%
Waterman15061493-13-0.86%
Maple Park 13101304-6-0.46%
Kingston11681161-7-0.60%
Malta11671153-14-1.20%
Shabbona941933-8-0.85%
Lee 345334-11-3.19%
  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