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Illinois ZIP Codes
Mcdonough County
Colchester, IL
62326
62326 ZIP Code — Colchester, IL
Mcdonough County, Illinois
ZIP code 62326 is located in
Colchester ,
Illinois ,
within Mcdonough County .
It covers approximately 77.27 square miles and serves a population of
2,315 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 309 .
About ZIP code 62326
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $97,400. Owner-occupancy is high at 75%, well above the national average.
Median household income is $57,861. 37% 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 20 minutes is near the national average.
Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.
Overall, ZIP code 62326 reflects a community defined by high homeownership and a significant Social Security-dependent population.
62326 ZIP code map
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Cities in ZIP code 62326
Below are the cities the US Postal Service accepts for ZIP code 62326. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
2,315
Population density
30 / sq mi
State FIPS
17
County FIPS
109
Geography
Land area
77.27 sq mi
Water area
0.18 sq mi
Latitude
40.4026
Longitude
-90.8112
Timezone
Central (CT)
Area code
309
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
54.5%
54.9%
37.2%
$50k – $100k
27.9%
25.4%
29.6%
$100k – $200k
14.4%
17.0%
24.4%
Over $200k
3.2%
2.7%
8.8%
Demographics & statistics
$57,861
Median household income
25.0%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 612 26.4%
18 and over 1,703 73.6%
65 and over 505 21.8%
Median age 39.2 years
Race & ethnicity
American Indian / Alaska Native
0.1%
Group Count %
White 2,280 98.2%
Two or more races 32 1.4%
Hispanic or Latino 6 0.3%
American Indian / Alaska Native 2 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
54.5%
54.9%
37.2%
$50k – $100k
27.9%
25.4%
29.6%
$100k – $200k
14.4%
17.0%
24.4%
Over $200k
3.2%
2.7%
8.8%
Range % of households
Under $10k 2.6%
$10k–$15k 4.9%
$15k–$25k 16.5%
$25k–$35k 12.6%
$35k–$50k 6.8%
$50k–$75k 22.9%
$75k–$100k 14.9%
$100k–$150k 10.3%
$150k–$200k 0.8%
$200k+ 7.7%
Median income $57,861
Housing
Housing overview
Metric Value
Median home value $97,400
Median rent / month $682
Owner occupied 75.4%
Renter occupied 24.6%
Vacant 9.9%
Single-family detached 90.4%
Large apartment buildings 0.0%
Mobile homes 7.5%
Median rooms 5.9
Avg household size (owned) 2.42
Year built
Era %
2020 or later 0.0%
2010–2019 5.5%
2000–2009 7.1%
1990–1999 6.1%
1980–1989 7.7%
1970–1979 17.7%
1960–1969 10.9%
1950–1959 8.9%
1940–1949 3.8%
1939 or earlier 32.2%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 3.4%
2 bedrooms 32.8%
3 bedrooms 46.6%
4 bedrooms 13.0%
5+ bedrooms 4.2%
Vehicles per household
Vehicles % of households
No vehicle 8.6%
1 vehicle 24.1%
2 vehicles 46.3%
3 or more 21.0%
Heating fuel
Fuel type %
Utility gas 48.7%
Electricity 14.6%
Propane / LP gas 27.9%
Wood 8.8%
Households & families
Household type Count %
Married-couple family 533 55.1%
Cohabiting couple 95 9.8%
Male householder, no spouse 144 14.9%
Female householder, no spouse 195 20.2%
Households with children under 18 326 33.7%
Households with seniors (65+) 335 34.6%
Average household size 2.39
Marital status
Status Male Female
Never married 27.8% 19.5%
Married 57.8% 58.8%
Separated 0.5% 4.2%
Widowed 5.0% 6.9%
Divorced 8.9% 10.6%
Education
Some college, no degree
13.5%
Graduate / professional
8.2%
Metric %
HS diploma or higher 92.5%
Bachelor's or higher 25.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 23 4.3%
Kindergarten 26 4.8%
Elementary school 267 49.5%
High school 140 26.0%
College / grad school 83 15.4%
Employment
Industry of employment
Education & healthcare
33.0%
Professional & management
11.6%
Transportation & utilities
4.7%
Agriculture & mining
3.8%
Arts, food & hospitality
3.6%
Finance & real estate
2.7%
Public administration
2.2%
Occupation
Category %
Management, business & arts 25.9%
Service 20.2%
Sales & office 19.8%
Natural resources & construction 14.5%
Production & transportation 19.6%
Employment type
Type %
Private sector 80.7%
Government 14.9%
Self-employed 4.4%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 81.5%
Carpool 10.2%
Public transit 1.0%
Walk 2.3%
Work from home 4.4%
Other means 0.6%
Avg commute (minutes) 20.4
Poverty
Married-couple families
7.5%
Female-led households
1.2%
Income support
Source % of households
Social Security 37.2%
Retirement income 20.0%
Supplemental Security 2.8%
Cash public assistance 1.8%
Food stamps / SNAP 9.0%
Health indicators
Condition %
Obesity 33.9%
High blood pressure 34.9%
High cholesterol 34.5%
Diabetes 10.4%
Heart disease 7.0%
Stroke 3.2%
Asthma 9.7%
Arthritis 28.2%
Kidney disease 3.0%
Pulmonary disease 7.8%
Cancer 7.4%
Behavior / access %
Smoking 18.7%
Binge drinking 14.8%
No physical activity 24.8%
Less than 7 hrs sleep 32.6%
Depression 17.7%
Fair or poor health 14.5%
Poor mental health 12.8%
Poor physical health 10.4%
No health insurance 10.3%
Visited doctor (checkup) 76.1%
Visited dentist 64.4%
Cholesterol screening 89.7%
Teeth loss 14.0%
Veterans & disability
Veterans Count %
Civilian veterans 178 10.5%
Disability %
Any disability 13.3%
Under 18 8.8%
18–64 years 7.7%
65 and over 31.9%
Health insurance coverage
Type %
Private insurance 70.2%
Public insurance 38.2%
No insurance 8.1%
Uninsured under 19 10.1%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 2,157 93.2%
Spanish 84 3.9%
Other Indo-European 7 0.3%
Asian & Pacific Islander 77 3.6%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 2,308 99.7%
Born in same state 2,301 99.4%
Born in different state 2,070 89.4%
Foreign born 7 0.3%
Naturalized citizen 7 0.3%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
French 392 16.9%
English 207 8.9%
Arab 201 8.7%
Ancestry Count %
Italian 129 5.6%
Polish 33 1.4%
German 9 0.4%
Technology access
Metric % of households
Computer access 41.8%
Internet access 82.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 62326
What city is ZIP code 62326 in?
ZIP code 62326 is primarily assigned to Colchester, Illinois.
What county is ZIP code 62326 in?
ZIP code 62326 falls within Mcdonough County, Illinois.
Does ZIP code 62326 have a large retiree population?
37% of households in ZIP code 62326 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 62326 have a large veteran population?
11% of civilians in ZIP code 62326 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 62326?
The median home value in ZIP code 62326 is $97,400.
What is the population of ZIP code 62326?
ZIP code 62326 has an estimated population of 2,315 residents, with a density of 30 people per square mile.
What timezone is ZIP code 62326 in?
ZIP code 62326 observes the CST timezone.
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