DeKalb County, Illinois Population 2018

DeKalb County, Illinois's estimated population is 104,733 with a growth rate of 0.26% 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
2017104,7332750.26%
2016104,458110.01%
2016104,447400.04%
2015104,407-241-0.23%
2014104,6485190.50%
2013104,129-183-0.18%
2012104,312-98-0.09%
2011104,410-737-0.70%
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%

DeKalb County, Illinois Population Growth

Population Data via

Population by Race

Race Population
White87,701
Black or African American7,187
Some Other Race4,134
Two or More Races2,786
Asian2,584
American Indian and Alaska Native66

Race Data via US Census (2016 ACS 5-Year Survey)

DeKalb County, Illinois Population Pyramid 2018

0%5%10%15% Male Population0%5%10%15% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

DeKalb County, Illinois Median Age

30.5


Total

29.9


Male

31.3


Female

DeKalb County, Illinois Adults

There are 81,582 adults, (11,699 of which are seniors) in DeKalb County, Illinois.

DeKalb County, Illinois Age Dependency

49.5

Age Dependency Ratio

16.8

Old Age Dependency Ratio

32.7

Child Dependency Ratio

DeKalb County, Illinois Sex Ratio

Female

52,691

50.44%

Male

51,767

49.56%

DeKalb County, Illinois Households and Families

DeKalb County, Illinois Renter vs Owner Occupied by Household Type

DeKalb County, Illinois Household Types

Type Owner Renter
Married80%20%
All57.5%42.5%
Male51.7%48.3%
Non Family37.6%62.4%
Female34.3%65.7%

57.5%

Rate of Home Ownership

DeKalb County, Illinois Households by Type

Type Count Average Size Owned
All37,3672.6557.5
Married17,2813.3380
Non Family14,4841.5137.6
Female4,0133.5434.3
Male1,5893.4451.7

3.25

Average Family Size

2.65

Average Household Size

8.8%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

DeKalb County, Illinois Households

DeKalb County, Illinois Education

DeKalb County, Illinois Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade1,4982.46%
9th to 12th Grade2,9744.89%
High School Graduate15,88926.14%
Some College14,97624.64%
Associates Degree6,71111.04%
Bachelors Degree11,39418.74%
Graduate Degree7,34412.08%

DeKalb County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White51,37248,63516,155
Hispanic4,8973,563640
Black2,6022,269877
Other Race1,9031,252124
Asian1,4381,422907
Multiple Races572520181
Native American373722

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 63.07%.

DeKalb County, Illinois Earnings by Educational Attainment

Name Average Male Female
Overall$36,499$43,175$30,047
Less Than High School$19,219$20,733$17,029
High School Grad$30,692$37,458$21,290
Some College$35,990$44,960$28,032
Bachelors Degree$42,969$54,089$35,297
Graduate Degree$57,080$61,354$54,338

$36,499

Average Earnings

$43,175

Average Male

$30,047

Average Female

DeKalb County, Illinois Language

DeKalb County, Illinois Language by Age

DeKalb County, Illinois Language

88.77% of DeKalb County, Illinois residents speak only English, while 11.23% speak other languages. The largest non-English language is Spanish, which is spoken by 6.79% of the population.

DeKalb County, Illinois Poverty

DeKalb County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White78,2959,88712.63%
Hispanic10,3733,53534.08%
Black5,9332,94249.59%
Other4,0161,51637.75%
Asian2,3441,12547.99%
Multiple2,48175330.35%
Native491224.49%

18.23%

Overall Poverty Rate

15.80%

Male Poverty Rate

20.60%

Female Poverty Rate

Poverty in DeKalb County, Illinois

The race most likely to be in poverty in DeKalb County, Illinois is Black, with 49.59% below the poverty level.

The race least likely to be in poverty in DeKalb County, Illinois is White, with 12.63% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.90%. Among those working part-time, it was 30.56%, and for those that did not work, the poverty rate was 22.72%.

DeKalb County, Illinois Poverty Rate by Education

Name Poverty
Less Than High School21.71%
High School11.51%
Some College10.35%
Bachelors or Greater9.41%

DeKalb County, Illinois Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed49.59%
Male Unemployed40.60%
Female Employed16.06%
Male Employed9.50%

DeKalb County, Illinois Income

DeKalb County, Illinois Income by Household Type

Name Median Mean
Households$56,076$67,764
Families$72,497$82,963
Married Families$85,385$95,864
Non Families$31,335$40,361

DeKalb County, Illinois Marital Status

DeKalb County, Illinois Marital Status

Marriage Rates

42.5%

Overall Marriage Rate

43.4%

Male Marriage Rate

41.6%

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 Over65, while the female age group most likely to be married is 45To54.

DeKalb County, Illinois Marital Status by Race

DeKalb County, Illinois Veterans

DeKalb County, Illinois Veterans by War

5,402

Number of Veterans

5,078

Male Veterans

324

Female Veterans

Name Veterans
Vietnam1,812
Second Gulf War905
First Gulf War855
Korea595
World War II323

DeKalb County, Illinois Veterans by Age

Name Veterans
35 to 541,313
75+1,216
65 to 741,192
55 to 641,050
18 to 34631

DeKalb County, Illinois Veterans by Race

Name Veterans % of Total
White5,0227.21%
Hispanic2833.99%
Other1685.90%
Black1613.03%
2 or More463.65%
Asian50.21%

DeKalb County, Illinois Veterans by Education

7.70%

Veteran Poverty Rate

22.37%

Veteran Disability Rate

DeKalb County, Illinois Employment Status

DeKalb County, Illinois Employment by Age

68.8%

Labor Force Participation

62.4%

Employment Rate

9.4%

Unemployment Rate

DeKalb County, Illinois Employment by Race

DeKalb County, Illinois Employment by Education

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%
Data Sources
  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