Union County, Illinois Population 2021

Union County, Illinois's estimated population is 16,295 with a growth rate of -1.09% in the past year according to the most recent United States census data. Union County, Illinois is the 64th largest county in Illinois. The 2010 Population was 17,731 and has seen a growth of -8.10% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202116,295-179-1.09%
202016,474-179-1.07%
201916,653-179-1.06%
201816,832-136-0.80%
201716,968-137-0.80%
201617,105-179-1.04%
201517,284-118-0.68%
201417,402-137-0.78%
201317,539-69-0.39%
201217,608-84-0.47%
201117,692-39-0.22%
201017,7311120.64%
199017,619-146-0.82%
198017,7651,69410.54%
197016,071-1,574-8.92%
196017,645-2,855-13.93%
195020,500-1,028-4.78%
194021,5281,6458.27%
193019,883-366-1.81%
192020,249-1,607-7.35%
191021,856-754-3.33%
190022,6101,0614.92%
189021,5493,44719.04%
188018,1021,5849.59%
187016,5185,33747.73%
186011,1813,56646.83%
18507,6152,09137.85%
18405,5242,28570.55%
18303,23987737.13%
18202,3620.00%
2021 Growth Rate
-1.09%
County Website
Founded
January 2, 1818
County Seat
2010 Population
17,731
Growth Since 2010
-8.10%
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Union County, Illinois Population Growth

Population by Race

Race Population Percentage
White15,96394.08%
Two or More Races3722.19%
Black or African American2761.63%
Some Other Race2391.41%
Asian560.33%
Native Hawaiian and Other Pacific Islander370.22%
American Indian and Alaska Native250.15%
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Union County, Illinois Population by Race

Union County, Illinois Population Pyramid $2021

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Union County, Illinois Median Age

43.7


Total

42.8


Male

44.8


Female

Union County, Illinois Adults

There are 13,379 adults, (3,470 of whom are seniors) in Union County, Illinois.

Union County, Illinois Age Dependency

71.2

Age Dependency Ratio

35

Old Age Dependency Ratio

36.2

Child Dependency Ratio

Union County, Illinois Sex Ratio

Female

8,460

49.86%

Male

8,508

50.14%

Union County, Illinois Population by Age

Union County, Illinois Renter vs Owner Occupied by Household Type

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Union County, Illinois Household Types

Type Owner Renter
Married88.7%11.3%
All77.3%22.7%
Male68.4%31.6%
Female67.9%32.1%
Non Family63.8%36.2%

77.3%

Rate of Home Ownership

Union County, Illinois Households and Families

Type Count Average Size Owned
All6,6542.4877.3
Married3,3892.9188.7
Non Family2,0951.2663.8
Female7083.2367.9
Male4623.7168.4

2.94

Average Family Size

2.48

Average Household Size

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Union County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade6665.44%
9th to 12th Grade7526.15%
High School Graduate4,33335.42%
Some College2,81723.03%
Associates Degree1,0058.22%
Bachelors Degree1,77414.50%
Graduate Degree8857.24%
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Union County, Illinois Educational Attainment by Sex (over 25)

Union County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White11,38810,2242,567
Hispanic48230525
2+ Races18913934
Black1441143
Other Race1336717
Asian515110
Native American17173
Islander1515

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 white people with a rate of 22.54%.

Union County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$32,184$40,167$28,884
Less Than 9th Grade$19,727$28,802$14,079
High School Graduate$26,797$31,641$20,208
Some College$31,867$41,429$24,400
Bachelors Degree$42,341$44,821$39,091
Graduate Degree$51,192$51,359$48,958

$32,184

Average Earnings

$40,167

Average Male

$28,884

Average Female

Union County, Illinois Earnings by Educational Attainment

Union County, Illinois Language by Age

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Union County, Illinois Language

95.45% of Union County, Illinois residents speak only English, while 4.55% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.71% of the population.

Union County, Illinois Language

Union County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White15,2332,41315.84%
Hispanic86035040.70%
Black26017266.15%
Other2197735.16%
Multiple3724812.90%
Asian562850.00%
Native25312.00%

17.98%

Overall Poverty Rate

18.12%

Male Poverty Rate

17.84%

Female Poverty Rate

Poverty in Union County, Illinois

The race most likely to be in poverty in Union County, Illinois is Black, with 66.15% below the poverty level.

The race least likely to be in poverty in Union County, Illinois is Native, with 12.00% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.61%. Among those working part-time, it was 21.05%, and for those that did not work, the poverty rate was 24.95%.

Union County, Illinois Poverty

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Name Poverty
Less Than 9th Grade33.81%
High School16.49%
Some College14.52%
Bachelors or Greater5.33%

Union County, Illinois Poverty Rate by Education

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Rate Poverty
Male Unemployed62.68%
Female Unemployed57.35%
Female Employed8.84%
Male Employed8.01%

Union County, Illinois Poverty Rate by Employment Status and Sex

Union County, Illinois Income by Household Type

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Name Median Mean
Households$50,625$63,764
Families$61,026$74,344
Married Families$71,172-
Non Families$27,156$37,414
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Income by Household Type

Union County, Illinois Marital Status

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Marriage Rates

52.0%

Overall Marriage Rate

53.4%

Male Marriage Rate

50.6%

Female Marriage Rate

Union County, Illinois Married by Age and Sex

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Union 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 35-44.

Union County, Illinois Marital Status by Race

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Union County, Illinois Marital Status

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1,207

Number of Veterans

1,165

Male Veterans

42

Female Veterans

War Veterans
Vietnam450
First Gulf War227
Second Gulf War154
World War II76
Korea66

Union County, Illinois Veterans by War

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Age Group Veterans
65 to 74365
75+305
35 to 54222
55 to 64210
18 to 34105

Union County, Illinois Veterans by Age

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Name Veterans % of Total
White1,1599.12%
2+ Races4821.24%
Hispanic254.51%

Union County, Illinois Veterans by Race

Union County, Illinois Veterans by Education

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6.18%

Veteran Poverty Rate

27.70%

Veteran Disability Rate

Union County, Illinois Veterans by Education

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53.9%

Labor Force Participation

50.4%

Employment Rate

6.4%

Unemployment Rate

Union County, Illinois Employment by Age

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Union County, Illinois Employment by Race

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Union 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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74.20%

Born in Union County, Illinois

97.25%

Native Born

2.75%

Foreign Born

1.48%

Non Citizen

1.27%

Naturalized

Place of Birth

97.25% of Union County, Illinois residents were born in the United States, with 74.20% having been born in Illinois. 1.48% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Union 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