DeKalb, Illinois Population 2020

42,603

DeKalb is a city located in Illinois. With a 2020 population of 42,603, it is the 35th largest city in Illinois and the 919th largest city in the United States. DeKalb is currently declining at a rate of -0.01% annually and its population has decreased by -2.87% since the most recent census, which recorded a population of 43,862 in 2010. DeKalb reached it's highest population of 44,103 in 2010. Spanning over 16 miles, DeKalb has a population density of 2,640 people per square mile.

The average household income in DeKalb is $60,832 with a poverty rate of 28.73%. The median rental costs in recent years comes to $881 per month, and the median house value is $154,700. The median age in DeKalb is 24.9 years, 25.3 years for males, and 24.5 years for females. For every 100 females there are 95.6 males.

DeKalb Demographics

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

  • White: 73.53%
  • Black or African American: 14.52%
  • Asian: 4.62%
  • Other race: 4.46%
  • Two or more races: 2.77%
  • Native American: 0.11%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of DeKalb, Illinois is 42,603, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 42,611.The last official US Census in 2010 recorded the population at 43,862.

DeKalb, Illinois Population 2020

Population by Race

Race Population Percentage
White31,49873.53%
Black or African American6,21914.52%
Asian1,9784.62%
Some Other Race1,9094.46%
Two or More Races1,1872.77%
American Indian and Alaska Native480.11%

DeKalb Population Pyramid 2020

DeKalb Median Age

24.9


Total

25.3


Male

24.5


Female

DeKalb Adults

There are 35,135 adults, (3,762 of whom are seniors) in DeKalb.

DeKalb Age Dependency

36.5

Age Dependency Ratio

12

Old Age Dependency Ratio

24.6

Child Dependency Ratio

DeKalb Sex Ratio

Female

21,901

51.12%

Male

20,938

48.88%

DeKalb Households and Families

DeKalb Renter vs Owner Occupied by Household Type

DeKalb Household Types

Type Owner Renter
Married72.9%27.1%
All39.3%60.7%
Male37.8%62.2%
Non Family23.2%76.8%
Female17.4%82.6%

39.3%

Rate of Home Ownership

Type Count Average Size Owned
All15,0152.5639.3
Non Family7,5181.8223.2
Married4,9403.3372.9
Female2,0283.2617.4
Male5293.2937.8

3.19

Average Family Size

2.56

Average Household Size

9%

Unmarried (Opposite Sex)

0.4%

Unmarried (Same Sex)

DeKalb Education

Education Attained Count Percentage
Less Than 9th Grade6673.13%
9th to 12th Grade9434.43%
High School Graduate4,57721.51%
Some College4,84422.76%
Associates Degree2,30610.84%
Bachelors Degree4,61421.68%
Graduate Degree3,33115.65%

DeKalb Educational Attainment by Race

Name Total High School Bachelors
White15,70514,8786,047
Hispanic2,2371,687347
Black2,0651,868699
Asian1,0731,037729
Other Race79351850
Multiple Races254254102
Native American242421

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 87.50%.

Name Average Male Female
Overall$32,344$40,683$26,216
Less Than High School$26,415$28,750$24,438
High School Grad$32,200$39,447$25,431
Some College$28,411$40,141$21,147
Bachelors Degree$38,799$47,177$30,642
Graduate Degree$56,406$59,222$54,496

$32,344

Average Earnings

$40,683

Average Male

$26,216

Average Female

DeKalb Language

DeKalb Language by Age

DeKalb Language

82.51% of DeKalb residents speak only English, while 17.49% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 8.79% of the population.

DeKalb Poverty

DeKalb Poverty by Race

Name Total In Poverty Poverty Rate
White25,7145,55221.59%
Black5,0002,62152.42%
Hispanic5,1461,58230.74%
Asian1,7941,17465.44%
Other1,78358332.70%
Multiple1,02920820.21%
Native241458.33%

28.73%

Overall Poverty Rate

26.60%

Male Poverty Rate

30.74%

Female Poverty Rate

Poverty in DeKalb

The race most likely to be in poverty in DeKalb is Asian, with 65.44% below the poverty level.

The race least likely to be in poverty in DeKalb is Multiple, with 20.21% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.38%. Among those working part-time, it was 43.88%, and for those that did not work, the poverty rate was 37.65%.

Name Poverty
Less Than High School16.42%
High School16.17%
Some College15.29%
Bachelors or Greater13.89%
Name Poverty
Male Unemployed69.75%
Female Unemployed61.90%
Female Employed24.07%
Male Employed14.20%

DeKalb Income

DeKalb Income by Household Type

Name Median Mean
Households$44,222$60,832
Families$66,789$80,560
Married Families$89,676-
Non Families$29,229$38,737

DeKalb Marital Status

DeKalb Marital Status

Marriage Rates

29.9%

Overall Marriage Rate

29.9%

Male Marriage Rate

30.0%

Female Marriage Rate

DeKalb Married by Age and Sex

DeKalb Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.

DeKalb Marital Status by Race

DeKalb Veterans

1,681

Number of Veterans

1,559

Male Veterans

122

Female Veterans

War Veterans
Vietnam443
Second Gulf War406
First Gulf War238
Korea213
World War II67
Name Veterans % of Total
White1,5045.68%
Black1122.50%
Hispanic1082.70%
Other654.40%

$DeKalb Veterans by Education

11.13%

Veteran Poverty Rate

24.29%

Veteran Disability Rate

DeKalb Employment Status

64.8%

Labor Force Participation

57.8%

Employment Rate

10.8%

Unemployment Rate

DeKalb 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

73.29%

Born in Illinois

89.64%

Native Born

10.36%

Foreign Born

7.72%

Non Citizen

Place of Birth

89.64% of DeKalb residents were born in the United States, with 73.29% having been born in Illinois. 7.72% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202042,603-4-0.01%
201942,607-4-0.01%
201842,611-101-0.24%
201742,712-4-0.01%
201642,716-230-0.54%
201542,946-293-0.68%
201443,239-10-0.02%
201343,249-251-0.58%
201243,500-203-0.46%
201143,703-400-0.91%
201044,1035,0851.23%
200039,0184,0931.11%
199034,9251,7680.52%
198033,1572080.06%
197032,94914,4635.95%
196018,4866,7784.67%
195011,7082,5622.50%
19409,1466010.68%
19308,5456740.82%
19207,871-231-0.29%
19108,1022,1983.22%
19005,9043,3258.63%
18902,5790.00%