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Illinois ZIP Codes
Will County
Joliet, IL
60431
60431 ZIP Code — Joliet, IL
Will County, Illinois
ZIP code 60431 is located in
Joliet ,
Illinois ,
within Will County .
It covers approximately 12.84 square miles and serves a population of
27,357 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 779/815 .
About ZIP code 60431
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $262,200. Owner-occupancy is high at 90%, well above the national average.
Median household income is $109,136. The poverty rate of 6% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.
Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 60431
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
27,357
Population density
2,131 / sq mi
State FIPS
17
County FIPS
197
Geography
Land area
12.84 sq mi
Water area
0.07 sq mi
Latitude
41.5345
Longitude
-88.2228
Timezone
Central (CT)
Area code
779/815
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.2%
25.0%
37.2%
$50k – $100k
36.5%
29.9%
29.6%
$100k – $200k
37.9%
34.1%
24.4%
Over $200k
7.4%
10.9%
8.8%
Demographics & statistics
$109,136
Median household income
$262,200
Median home value
$1,359
Median monthly rent
30.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 7,627 27.9%
18 and over 19,730 72.1%
65 and over 2,922 10.7%
Median age 35.1 years
Race & ethnicity
Black or African American
11.9%
American Indian / Alaska Native
0.7%
Group Count %
White 18,318 59.1%
Black or African American 3,680 11.9%
Hispanic or Latino 3,661 11.8%
Two or more races 2,372 7.6%
Other race 2,177 7%
Asian 592 1.9%
American Indian / Alaska Native 218 0.7%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
18.2%
25.0%
37.2%
$50k – $100k
36.5%
29.9%
29.6%
$100k – $200k
37.9%
34.1%
24.4%
Over $200k
7.4%
10.9%
8.8%
Range % of households
Under $10k 3.2%
$10k–$15k 0.8%
$15k–$25k 2.7%
$25k–$35k 3.7%
$35k–$50k 5.1%
$50k–$75k 11.3%
$75k–$100k 17.0%
$100k–$150k 29.1%
$150k–$200k 16.6%
$200k+ 10.6%
Median income $109,136
Housing
Housing overview
Metric Value
Median home value $262,200
Median rent / month $1,359
Owner occupied 90.0%
Renter occupied 10.0%
Vacant 4.8%
Single-family detached 76.0%
Large apartment buildings 3.7%
Mobile homes 0.1%
Median rooms 6.5
Avg household size (owned) 3.14
Year built
Era %
2020 or later 0.1%
2010–2019 15.0%
2000–2009 34.8%
1990–1999 23.3%
1980–1989 7.8%
1970–1979 11.6%
1960–1969 4.9%
1950–1959 1.9%
1940–1949 0.1%
1939 or earlier 0.4%
Bedrooms
Size % of units
No bedroom (studio) 0.7%
1 bedroom 3.3%
2 bedrooms 15.6%
3 bedrooms 41.4%
4 bedrooms 30.7%
5+ bedrooms 8.3%
Vehicles per household
Vehicles % of households
No vehicle 3.2%
1 vehicle 18.7%
2 vehicles 50.3%
3 or more 27.8%
Heating fuel
Fuel type %
Utility gas 93.7%
Electricity 5.4%
Propane / LP gas 0.9%
Households & families
Household type Count %
Married-couple family 5,545 62.3%
Cohabiting couple 809 9.1%
Male householder, no spouse 1,078 12.1%
Female householder, no spouse 1,472 16.5%
Households with children under 18 4,109 46.1%
Households with seniors (65+) 2,133 24.0%
Average household size 3.06
Marital status
Status Male Female
Never married 37.0% 29.7%
Married 54.5% 53.7%
Separated 1.1% 0.2%
Widowed 1.3% 5.9%
Divorced 6.2% 10.5%
Education
Some college, no degree
27.3%
Graduate / professional
11.5%
Metric %
HS diploma or higher 95.2%
Bachelor's or higher 30.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 539 7.0%
Kindergarten 345 4.5%
Elementary school 3,325 43.1%
High school 1,740 22.5%
College / grad school 1,774 23.0%
Employment
Industry of employment
Education & healthcare
25.0%
Transportation & utilities
10.3%
Professional & management
8.0%
Arts, food & hospitality
7.2%
Finance & real estate
6.4%
Public administration
5.0%
Agriculture & mining
0.4%
Occupation
Category %
Management, business & arts 33.4%
Service 17.5%
Sales & office 23.5%
Natural resources & construction 8.7%
Production & transportation 17.0%
Employment type
Type %
Private sector 79.1%
Government 19.1%
Self-employed 1.8%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 84.0%
Carpool 6.5%
Public transit 1.5%
Walk 0.4%
Work from home 7.0%
Other means 0.7%
Avg commute (minutes) 31.6
Poverty
Married-couple families
1.6%
Female-led households
23.6%
Income support
Source % of households
Social Security 23.8%
Retirement income 23.8%
Supplemental Security 3.4%
Cash public assistance 2.7%
Food stamps / SNAP 6.0%
Health indicators
Condition %
Obesity 35.9%
High blood pressure 27.6%
High cholesterol 28.7%
Diabetes 7.5%
Heart disease 4.2%
Stroke 2.1%
Asthma 9.4%
Arthritis 20.7%
Kidney disease 2.1%
Pulmonary disease 4.8%
Cancer 5.0%
Behavior / access %
Smoking 16.1%
Binge drinking 16.8%
No physical activity 23.4%
Less than 7 hrs sleep 34.9%
Depression 16.4%
Fair or poor health 11.3%
Poor mental health 12.6%
Poor physical health 7.9%
No health insurance 12.1%
Visited doctor (checkup) 76.4%
Visited dentist 67.3%
Cholesterol screening 88.8%
Teeth loss 11.1%
Veterans & disability
Veterans Count %
Civilian veterans 1,049 5.3%
Disability %
Any disability 7.4%
Under 18 2.4%
18–64 years 6.7%
65 and over 25.2%
Health insurance coverage
Type %
Private insurance 80.8%
Public insurance 23.9%
No insurance 4.9%
Uninsured under 19 3.8%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 25,330 92.6%
Spanish 1,216 4.8%
Other Indo-European 950 3.8%
Asian & Pacific Islander 118 0.5%
Other languages 128 0.5%
Place of birth & citizenship
Origin Count %
Native born (US) 25,593 93.6%
Born in same state 25,388 92.8%
Born in different state 22,208 81.2%
Foreign born 205 0.7%
Naturalized citizen 1,764 6.4%
Not a US citizen 1,257 71.3%
Ancestry
Ancestry Count %
Italian 3,929 14.4%
French 1,551 5.7%
Arab 646 2.4%
Norwegian 493 1.8%
Polish 399 1.5%
Ancestry Count %
English 183 0.7%
Dutch 134 0.5%
Irish 85 0.3%
German 66 0.2%
Technology access
Metric % of households
Computer access 32.5%
Internet access 97.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 60431
What city is ZIP code 60431 in?
ZIP code 60431 is primarily assigned to Joliet, Illinois.
What county is ZIP code 60431 in?
ZIP code 60431 falls within Will County, Illinois.
Is ZIP code 60431 mostly owner-occupied?
90% of occupied units in ZIP code 60431 are owner-occupied, well above the national average.
What is the median household income in ZIP code 60431?
The median household income in ZIP code 60431 is $109,136, above the national median of ~$75,000.
What is the population of ZIP code 60431?
ZIP code 60431 has an estimated population of 27,357 residents, with a density of 2,130 people per square mile.
What is the typical home value in ZIP code 60431?
The median home value in ZIP code 60431 is $262,200.
What timezone is ZIP code 60431 in?
ZIP code 60431 observes the CST timezone.
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