Union County, IL ZIP Codes

Illinois (IL)  ·  7 ZIP codes  ·  7 cities
7
ZIP codes
16,923
population (2021)
-5.0%
pop change since 2010
17181
FIPS code
Union County ZIP code map
About Union County
Union County is located in Illinois and contains 7 ZIP codes across 7 cities and communities. The county's population was 16,923 as of 2021, a decrease of 5% from 17,808 in 2010. The timezone is Mountain Time (observes DST). The Federal Information Processing System (FIPS) code for Union County is 17181.
Population
2021 population16,923
2010 population17,808
Change-5.0%
County details
StateIllinois
FIPS code17181
TimezoneMountain
Daylight savingYes
Cities in Union County
ZIP codes for Union County, IL (7)

Demographics & statistics

16,887
Population
44.8
Median age
$50,602
Median household income
$29,490
Per capita income
$103,129
Median home value
$501
Median monthly rent
80.7%
Home ownership
16.6%
Poverty rate
4.0%
Unemployment
6,428
Housing units
23.2%
Bachelor's or higher

Age distribution

Male Female
443
Under 5
435
451
5–9
443
523
10–14
513
552
15–19
541
373
20–24
366
908
25–34
890
1,005
35–44
986
1,092
45–54
1,071
611
55–59
600
540
60–64
529
1,086
65–74
1,065
655
75–84
643
286
85+
280
← Male
Female →

Age summary

GroupCount%
Under 183,51019.6%
18 and over13,37780.4%
65 and over4,01525.3%
Median age44.8 years

Race & ethnicity

White 87%
Two or more races 6.2%
Hispanic or Latino 4.3%
Black or African American 1.5%
Asian 0.4%
American Indian / Alaska Native 0.2%
Other race 0.2%
Native Hawaiian / Pacific Islander 0.1%
GroupCount%
White15,35387%
Two or more races1,0976.2%
Hispanic or Latino7664.3%
Black or African American2651.5%
Asian700.4%
American Indian / Alaska Native400.2%
Other race400.2%
Native Hawaiian / Pacific Islander220.1%

Household income

Under $10k 5.6%
$10k–$15k 7.8%
$15k–$25k 9.0%
$25k–$35k 10.2%
$35k–$50k 11.7%
$50k–$75k 19.2%
$75k–$100k 9.4%
$100k–$150k 14.8%
$150k–$200k 6.6%
$200k+ 5.6%
Range% of households
Under $10k5.6%
$10k–$15k7.8%
$15k–$25k9.0%
$25k–$35k10.2%
$35k–$50k11.7%
$50k–$75k19.2%
$75k–$100k9.4%
$100k–$150k14.8%
$150k–$200k6.6%
$200k+5.6%
Median income$50,602

Housing

Home values

Under $50k 21.7%
$50k–$100k 24.1%
$100k–$150k 18.5%
$150k–$200k 10.1%
$200k–$300k 14.5%
$300k–$500k 9.6%
$500k–$1M 0.6%
$1M+ 0.9%

Housing overview

MetricValue
Median home value$103,129
Median rent / month$501
Owner occupied80.7%
Renter occupied19.3%
Vacant23.1%
Single-family detached76.4%
Large apartment buildings1.1%
Mobile homes14.1%
Median rooms5.5
Avg household size (owned)2.50

Year built

Era%
2020 or later0.0%
2010–20194.7%
2000–200910.2%
1990–199914.0%
1980–198914.5%
1970–197921.5%
1960–19698.7%
1950–19595.9%
1940–19495.7%
1939 or earlier14.8%

Bedrooms

Size% of units
No bedroom (studio)5.1%
1 bedroom5.4%
2 bedrooms19.4%
3 bedrooms56.6%
4 bedrooms11.2%
5+ bedrooms2.4%

Vehicles per household

Vehicles% of households
No vehicle6.5%
1 vehicle29.5%
2 vehicles37.3%
3 or more26.6%

Heating fuel

Fuel type%
Utility gas22.7%
Electricity43.7%
Propane / LP gas29.4%
Wood3.8%

Households & families

Household typeCount%
Married-couple family3,17852.3%
Cohabiting couple4305.4%
Male householder, no spouse1,32719.0%
Female householder, no spouse1,73623.4%
Households with children under 181,88426.8%
Households with seniors (65+)2,79142.9%
Average household size2.53

Marital status

StatusMaleFemale
Never married27.5%22.5%
Married51.5%51.3%
Separated2.0%1.2%
Widowed5.3%9.5%
Divorced13.8%15.5%

Education

Less than 9th grade 4.1%
Some HS, no diploma 6.0%
HS graduate 35.9%
Some college, no degree 23.3%
Associate's degree 7.6%
Bachelor's degree 15.8%
Graduate / professional 7.4%
Metric%
HS diploma or higher89.9%
Bachelor's or higher23.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool2787.1%
Kindergarten2184.0%
Elementary school1,41046.9%
High school95628.0%
College / grad school52914.1%

Employment

Industry of employment

Education & healthcare 28.8%
Retail trade 12.4%
Construction 9.4%
Professional & management 7.6%
Manufacturing 7.3%
Wholesale trade 6.5%
Other services 5.8%
Arts, food & hospitality 5.8%
Public administration 5.4%
Transportation & utilities 4.2%
Agriculture & mining 3.3%
Finance & real estate 2.6%
Information 0.9%

Occupation

Category%
Management, business & arts34.7%
Service21.2%
Sales & office14.2%
Natural resources & construction12.0%
Production & transportation17.9%

Employment type

Type%
Private sector75.3%
Government16.8%
Self-employed7.9%
Unpaid family workers0.0%

Commute

Method%
Drive alone86.0%
Carpool6.2%
Public transit0.0%
Walk1.0%
Other means1.6%
Avg commute (minutes)22.1

Poverty

All people 16.6%
Under 18 years 20.1%
18 and over 15.5%
Married-couple families 5.7%
Female-led households 22.4%

Income support

Source% of households
Social Security43.1%
Retirement income27.8%
Supplemental Security7.1%
Cash public assistance4.9%
Food stamps / SNAP16.2%

Health indicators

Condition%
High blood pressure36.0%
High cholesterol35.1%
Heart disease7.8%
Stroke3.7%
Asthma10.2%
Arthritis29.4%
Kidney disease3.4%
Pulmonary disease9.0%
Cancer7.3%
Behavior / access%
Binge drinking14.5%
No physical activity27.8%
Less than 7 hrs sleep33.1%
Fair or poor health17.1%
Poor mental health13.5%
Poor physical health11.6%
No health insurance11.9%
Visited doctor (checkup)77.3%
Visited dentist60.7%
Cholesterol screening89.0%
Teeth loss17.3%

Veterans & disability

VeteransCount%
Civilian veterans99210.1%
Disability%
Any disability21.4%
Under 185.1%
18–64 years18.5%
65 and over41.0%

Health insurance coverage

Type%
Private insurance57.7%
Public insurance52.3%
Uninsured under 195.1%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only16,00995.9%
Spanish2771.7%
Other Indo-European2441.5%
Asian & Pacific Islander60.0%
Other languages270.1%

Place of birth & citizenship

OriginCount%
Native born (US)16,41596.8%
Born in same state16,31596.5%
Born in different state11,79363.1%
Foreign born1000.3%
Naturalized citizen4723.2%
Not a US citizen27344.5%

Ancestry

AncestryCount%
Italian1,6709.9%
French1,6479.8%
Arab1,0336.1%
English1060.6%
Polish510.3%
AncestryCount%
Norwegian230.1%
Dutch170.1%
German60%
Irish60%

Technology access

Metric% of households
Computer access39.7%
Internet access75.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

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