DeKalb, DeKalb County, Illinois Population and Demographics

In this article, we'll explore the population statistics for DeKalb, Illinois, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in DeKalb, Illinois. The most basic data is the total population, which is the total number of people living in DeKalb, Illinois. The estimated population of DeKalb, Illinois is 41,083 people, with a median age of 25.1.

We can look at the total population in DeKalb over the last 5 years to see how much it has changed.

Year Population Change 5-Year Change
2021
41,083
-4.37% -4.77%
2020
42,961
+0.12%
-
2019
42,908
+0.16%
-
2018
42,839
-0.7% -
2017
43,141
- -

Population of DeKalb, Illinois by Race and Ethnicity

We can also look at how the population has changed over the last 5 years by each of the race/ethnicity types as defined by the US Census Bureau.

Race 2021 2017 Change
White
60.5%
66.3%
-8.75%
Black/African American
14.5%
13.4%
+8.21%
Native
0.1%
0%
0.00%
Hispanic
16.1%
13%
+23.85%
Asian
4%
4.5%
-11.11%
Hawaiian/Pacific Islander
0%
0%
0.00%
Two Or More Races
4.6%
2.7%
+70.37%
Other
0.2%
0%
0.00%

This data can be very important for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of DeKalb, Illinois by Age and Gender

The age and gender of a population is another interesting demographic statistic because it lets us track trends in the population over time. For example, we can see how the population has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 25.1 0% 24.8 -1.2% 25.5 +1.19%
2020 25.1 +0.4% 25.1 +0.4% 25.2 +1.2%
2019 25 +0.4% 25 -1.19% 24.9 +1.63%
2018 24.9 +0.81% 25.3 +0.8% 24.5 +0.82%
2017 24.7 - 25.1 - 24.3 -

The median age of DeKalb, Illinois gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 2,284 -4.8% 2,465 -16.41% 2,154 2,072
10 to 19 3,170 -3.34% 3,970 -12.47% 3,065 3,482
20 to 29 6,931 +0.81% 6,949 -12.04% 6,947 6,134
30 to 39 2,349 -3.24% 2,101 +0.68% 2,258 2,111
40 to 49 1,703 +8.94% 1,944 -0.74% 1,796 1,920
50 to 59 1,942 -8.45% 2,013 -4.38% 1,774 1,920
60 to 69 1,155 +4.92% 1,478 -3.83% 1,192 1,416
70+ 1,116 +6.27% 1,571 +6.24% 1,176 1,666

Median Household Income

The latest median household income of DeKalb, Illinois is $45,591.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less. The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for DeKalb.

  • Under 25
    $18,110.00
  • 25 to 44
    $43,100.00
  • 45 to 64
    $73,927.00
  • 65 and over
    $48,750.00

Average Household Income

Whenever we ask what is the average household income in DeKalb, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in DeKalb, and then dividing that number by the total number of households. This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of DeKalb, Illinois is currently $62,745.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

3.61% of households in DeKalb are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of DeKalb against other areas.

  • Less than $24,999
    29.65%
  • $25,000 to $49,999
    23.73%
  • $50,000 to $74,999
    18.65%
  • $75,000 to $99,999
    8.04%
  • $100,000 to $149,999
    11.44%
  • $150,000 to $199,999
    4.87%
  • $200,000 or more
    3.61%

Per Capita Income

The per capita income in DeKalb is $25,092.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of DeKalb by the total population of DeKalb.

This is different from the average or mean income because it includes and accounts for all people in DeKalb, Illinois, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in DeKalb to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    18.25%
  • Bachelor's degree
    34.24%
  • Some college or associate's degree
    11.41%
  • High school diploma or equivalent
    32.93%
  • Less than high school diploma
    3.17%

Employment

Employment rates are all based around the total population in DeKalb that are over the age of 16.

The total population of DeKalb over the age of 16 is 34,099.

Of those people, a total of 67.90% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in DeKalb is 60.20%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate.

Age Population Participation Unemployment Rate
16 to 19 years 3,789 47.30% 30.80%
20 to 24 years 9,697 71.70% 13.80%
25 to 29 years 3,384 79.90% 7.80%
30 to 34 years 2,553 91.30% 5.10%
35 to 44 years 3,848 86.10% 13.90%
45 to 54 years 3,369 85.60% 3.70%
55 to 59 years 2,009 82.50% 5.50%
60 to 64 years 1,438 57.60% 7.70%
65 to 74 years 2,279 27.70% 10.00%
75 years and over 1,733 3.50% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in DeKalb. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau.

Age Population Participation Unemployment Rate
White 24,053 66.20% 11.40%
Black or African American 4,361 73.50% 18.80%
American Indian and Alaska Native 100 100.00% 17.00%
Asian 1,645 44.30% 3.40%
Native Hawaiian and Other Pacific Islander 0 0.00% 0.00%
Other 1,739 80.30% 4.70%
Two or more races 2,201 81.30% 5.40%
Hispanic or Latino 4,906 78.10% 8.30%
Not Hispanic or Latino 21,847 64.90% 11.10%

Occupations

In this section we can look at the most common occupations in DeKalb as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in DeKalb is 20,514, with median earnings of $25,940.00.

Women in DeKalb, Illinois earning approximately 63.00% of the men's earnings.

Population Earnings
Total 20,514 $25,940.00
Male 10,657 $31,847.00
Female 9,857 $20,070.00

Occupations by Category

In the table below, we can break down the population and earnings even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 1,503 $56,288.00
Business and Financial 614 $52,889.00
Computer and Mathematical 474 $51,071.00
Architecture and Engineering 208 $41,944.00
Life, Physical, and Social Science 169 $22,205.00
Community and Social Service 278 $53,804.00
Legal 221 $92,684.00
Educational and Library 1,830 $31,792.00
Arts, Design, Entertainment, Sports, and Media 434 $31,771.00
Healthcare Practitioners 786 $43,194.00
Healthcare Support 1,156 $19,011.00
Firefighters and Protective Service 495 $19,298.00
Law Enforcement 94 $96,250.00
Food Preparation and Serving 2,209 $13,074.00
Building and Grounds Cleaning 735 $15,792.00
Personal Care and Service 622 $7,770.00
Sales 1,910 $16,574.00
Office and Administrative Support 2,125 $20,243.00
Farming, Fishing, and Forestry 64 $20,441.00
Construction and Extraction 711 $39,436.00
Installation, Maintenance, and Repair 631 $43,862.00
Production 1,460 $37,167.00
Transportation and Material Moving 823 $16,845.00

Occupations by Gender

The table below shows the same occupations from the list above, but we have split them by male and female to see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 805 $58,604.00 698 $52,839.00
Business and Financial 247 $71,031.00 367 $44,455.00
Computer and Mathematical 351 $68,615.00 123 $29,901.00
Architecture and Engineering 208 $41,944.00 0 $0.00
Life, Physical, and Social Science 82 $69,375.00 87 $21,114.00
Community and Social Service 75 $55,977.00 203 $49,886.00
Legal 125 $94,652.00 96 $41,181.00
Educational and Library 668 $53,333.00 1,162 $28,839.00
Arts, Design, Entertainment, Sports, and Media 209 $32,240.00 225 $14,250.00
Healthcare Practitioners 169 $35,898.00 617 $55,711.00
Healthcare Support 207 $26,078.00 949 $17,527.00
Firefighters and Protective Service 286 $33,750.00 209 $18,314.00
Law Enforcement 68 $110,357.00 26 $0.00
Food Preparation and Serving 1,216 $15,953.00 993 $11,320.00
Building and Grounds Cleaning 530 $16,389.00 205 $12,760.00
Personal Care and Service 70 $4,808.00 552 $10,043.00
Sales 1,077 $17,005.00 833 $15,448.00
Office and Administrative Support 607 $14,279.00 1,518 $21,220.00
Farming, Fishing, and Forestry 27 $0.00 37 $0.00
Construction and Extraction 711 $39,436.00 0 $0.00
Installation, Maintenance, and Repair 631 $43,862.00 0 $0.00
Production 905 $41,692.00 555 $14,861.00
Transportation and Material Moving 687 $16,917.00 136 $9,559.00

Households and Family Size

A household defined bu the US Census Bureau is a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 15,867 households in DeKalb, with an average household size of 2.35 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 7,826 families in DeKalb with an average family size of 3.11 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each.

Married Male Female Nonfamily
Total Households 4,886 531 2,409 8,041
Average Household Size 3.22 3.19 3.26 1.49
Total Families 4,886 531 2,409 0
Average Household Size 3.19 2.8 3 0

Poverty

Of the 7,826 families in DeKalb, 19.70% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in DeKalb:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 16,943 housing units in DeKalb, Illinois.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 15,867 93.65%
Vacant 1,076 6.35%

55.59% of the total 16,943 housing units in DeKalb are rental units. This is approximately 9,418 properties.

For owner-occupied housing units, a total of 6,336 are occupied by the owner - or 37.40% of the total.

Rental Rates

The median rent for a property in DeKalb is $943.00.

In the chart below, we can look at the number of rental properties in DeKalb that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    113
  • Less than $500
    783
  • $500 to $999
    4,526
  • $1,000 to $1,499
    2,893
  • $1,500 to $1,999
    838
  • $2,000 to $2,499
    333
  • $2,500 to $2,999
    45
  • $3,000 or more
    0

Property Value

The median value of a property in DeKalb is $171,100.00.

Just like with rental rates, we can look at the number of properties in DeKalb that fall into a particular value range.

  • Less than $50,000
    220
  • $50,000 to $99,999
    529
  • $100,000 to $149,999
    1,550
  • $150,000 to $199,999
    1,925
  • $200,000 to $299,999
    1,722
  • $300,000 to $499,999
    331
  • $500,000 to $999,999
    59
  • $1,000,000 or more
    0

Property Age

We can also look at the age of properties in DeKalb. The chart below shows the number of properties in DeKalb that fall into a particular age range.

  • 1939 or earlier
    2,110
  • 1940 to 1949
    484
  • 1950 to 1959
    1,074
  • 1960 to 1969
    2,205
  • 1970 to 1979
    3,634
  • 1980 to 1989
    1,767
  • 1990 to 1999
    2,614
  • 2000 to 2009
    2,723
  • 2010 to 2013
    332
  • 2014 or later
    0

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in DeKalb that have a particular number of vehicles available.

  • No vehicles available
    1,461
  • 1 vehicle available
    6,412
  • 2 vehicles available
    5,705
  • 3 or more vehicles available
    2,289

Commuting to Work

In this section, we can also look at how people in DeKalb get to work. The chart below shows the number of people in DeKalb that commute to work in a particular way.

22.5 minutes is the average travel time to work for people in DeKalb.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    926
  • 5 to 9 minutes
    4,412
  • 10 to 14 minutes
    4,635
  • 15 to 19 minutes
    2,477
  • 20 to 24 minutes
    874
  • 25 to 29 minutes
    704
  • 30 to 34 minutes
    1,116
  • 35 to 39 minutes
    315
  • 40 to 44 minutes
    710
  • 45 to 59 minutes
    1,398
  • 60 to 89 minutes
    1,220
  • 90 or more minutes
    509

Summary

We've covered a LOT of demographic and population data for DeKalb, Illinois in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.