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Illinois ZIP Codes
Randolph County
Coulterville, IL
62237
62237 ZIP Code — Coulterville, IL
Randolph County, Illinois
ZIP code 62237 is located in
Coulterville ,
Illinois ,
within Randolph County .
It covers approximately 91.94 square miles and serves a population of
2,411 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 618 .
About ZIP code 62237
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $130,000. Owner-occupancy is high at 93%, well above the national average.
Median household income is $56,652. 50% of households receive Social Security income, suggesting a notable retiree or disability population.
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.
College attainment at 16% is below the national average, consistent with a trades and production-oriented local economy.
Notable community characteristics include a notable veteran presence at 15% of civilians, above the national average of 7%.
Overall, ZIP code 62237 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
62237 ZIP code map
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Cities in ZIP code 62237
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
2,411
Population density
26 / sq mi
State FIPS
17
County FIPS
157
Geography
Land area
91.94 sq mi
Water area
0.51 sq mi
Latitude
38.2018
Longitude
-89.5640
Timezone
Central (CT)
Area code
618
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.9%
42.7%
37.2%
$50k – $100k
33.5%
35.7%
29.6%
$100k – $200k
14.8%
18.3%
24.4%
Over $200k
1.8%
3.3%
8.8%
Demographics & statistics
$56,652
Median household income
$130,000
Median home value
15.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 443 18.4%
18 and over 1,968 81.6%
65 and over 663 27.5%
Median age 52.7 years
Race & ethnicity
Black or African American
0.2%
Group Count %
White 2,326 96.4%
Two or more races 64 2.7%
Asian 14 0.6%
Black or African American 4 0.2%
Hispanic or Latino 3 0.1%
Other race 3 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
49.9%
42.7%
37.2%
$50k – $100k
33.5%
35.7%
29.6%
$100k – $200k
14.8%
18.3%
24.4%
Over $200k
1.8%
3.3%
8.8%
Range % of households
Under $10k 5.5%
$10k–$15k 9.5%
$15k–$25k 9.4%
$25k–$35k 8.5%
$35k–$50k 9.1%
$50k–$75k 20.6%
$75k–$100k 10.2%
$100k–$150k 17.8%
$150k–$200k 6.2%
$200k+ 3.3%
Median income $56,652
Housing
Housing overview
Metric Value
Median home value $130,000
Median rent / month $642
Owner occupied 93.3%
Renter occupied 6.7%
Vacant 16.2%
Single-family detached 77.9%
Large apartment buildings 0.0%
Mobile homes 18.5%
Median rooms 5.7
Avg household size (owned) 2.22
Year built
Era %
2020 or later 0.0%
2010–2019 13.2%
2000–2009 11.7%
1990–1999 18.8%
1980–1989 15.4%
1970–1979 17.3%
1960–1969 5.8%
1950–1959 4.3%
1940–1949 4.6%
1939 or earlier 8.9%
Bedrooms
Size % of units
No bedroom (studio) 3.9%
1 bedroom 5.4%
2 bedrooms 26.2%
3 bedrooms 48.0%
4 bedrooms 10.6%
5+ bedrooms 5.9%
Vehicles per household
Vehicles % of households
No vehicle 3.1%
1 vehicle 21.9%
2 vehicles 37.5%
3 or more 37.4%
Heating fuel
Fuel type %
Utility gas 21.3%
Electricity 39.6%
Propane / LP gas 27.7%
Fuel oil 0.2%
Wood 10.5%
No fuel used 0.3%
Households & families
Household type Count %
Married-couple family 554 52.1%
Cohabiting couple 63 5.9%
Male householder, no spouse 285 26.8%
Female householder, no spouse 161 15.1%
Households with children under 18 229 21.5%
Households with seniors (65+) 426 40.1%
Average household size 2.20
Marital status
Status Male Female
Never married 29.8% 21.8%
Married 54.7% 56.0%
Separated 0.5% 1.8%
Widowed 4.9% 10.3%
Divorced 10.1% 10.1%
Education
Some college, no degree
22.6%
Graduate / professional
5.8%
Metric %
HS diploma or higher 87.6%
Bachelor's or higher 15.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 9 2.2%
Kindergarten 20 4.9%
Elementary school 214 52.5%
High school 111 27.2%
College / grad school 54 13.2%
Employment
Industry of employment
Education & healthcare
16.7%
Transportation & utilities
12.6%
Agriculture & mining
11.0%
Public administration
9.9%
Arts, food & hospitality
6.6%
Finance & real estate
5.1%
Professional & management
5.0%
Occupation
Category %
Management, business & arts 37.1%
Service 16.6%
Sales & office 8.8%
Natural resources & construction 15.3%
Production & transportation 22.1%
Employment type
Type %
Private sector 73.7%
Government 17.8%
Self-employed 8.5%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 84.2%
Carpool 5.7%
Public transit 0.0%
Walk 0.4%
Work from home 8.8%
Other means 0.9%
Avg commute (minutes) 32.1
Poverty
Married-couple families
2.2%
Female-led households
39.1%
Income support
Source % of households
Social Security 50.0%
Retirement income 30.5%
Supplemental Security 4.7%
Cash public assistance 2.1%
Food stamps / SNAP 10.1%
Health indicators
Condition %
Obesity 35.5%
High blood pressure 36.8%
High cholesterol 35.7%
Diabetes 11.2%
Heart disease 7.7%
Stroke 3.6%
Asthma 9.8%
Arthritis 30.4%
Kidney disease 3.3%
Pulmonary disease 8.4%
Cancer 7.9%
Behavior / access %
Smoking 19.4%
Binge drinking 14.4%
No physical activity 26.9%
Less than 7 hrs sleep 32.4%
Depression 18.0%
Fair or poor health 15.5%
Poor mental health 12.9%
Poor physical health 11.0%
No health insurance 10.3%
Visited doctor (checkup) 77.6%
Visited dentist 63.3%
Cholesterol screening 90.5%
Teeth loss 15.1%
Veterans & disability
Veterans Count %
Civilian veterans 287 14.6%
Disability %
Any disability 20.1%
Under 18 4.3%
18–64 years 16.3%
65 and over 40.0%
Health insurance coverage
Type %
Private insurance 70.4%
Public insurance 44.8%
No insurance 3.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 2,328 96.6%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 2,387 99.0%
Born in same state 2,370 98.3%
Born in different state 1,926 79.9%
Foreign born 17 0.7%
Naturalized citizen 24 1.0%
Not a US citizen 24 100.0%
Ancestry
Ancestry Count %
Italian 316 13.1%
French 191 7.9%
Ancestry Count %
Arab 175 7.3%
English 10 0.4%
Technology access
Metric % of households
Computer access 44.1%
Internet access 88.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 62237
What city is ZIP code 62237 in?
ZIP code 62237 is primarily assigned to Coulterville, Illinois.
What county is ZIP code 62237 in?
ZIP code 62237 falls within Randolph County, Illinois.
Is ZIP code 62237 mostly owner-occupied?
93% of occupied units in ZIP code 62237 are owner-occupied, well above the national average.
Does ZIP code 62237 have an older population?
28% of residents in ZIP code 62237 are 65 or older, above the national average of ~17%.
Does ZIP code 62237 have a large retiree population?
50% of households in ZIP code 62237 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 62237 have a large veteran population?
15% of civilians in ZIP code 62237 are veterans, above the national average of ~7%.
What timezone is ZIP code 62237 in?
ZIP code 62237 observes the CST timezone.
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