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Illinois ZIP Codes
Tazewell County
Mackinaw, IL
61755
61755 ZIP Code — Mackinaw, IL
Tazewell County, Illinois
ZIP code 61755 is located in
Mackinaw ,
Illinois ,
within Tazewell County .
It covers approximately 46.67 square miles and serves a population of
4,530 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 309 .
About ZIP code 61755
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $202,500. Owner-occupancy is high at 85%, well above the national average.
Median household income is $98,686. The poverty rate of 5% 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 30 minutes is near the national average.
Educational attainment is near the national average, with 32% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 61755
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
4,530
Population density
97 / sq mi
State FIPS
17
County FIPS
179
Geography
Land area
46.67 sq mi
Water area
0.19 sq mi
Latitude
40.5263
Longitude
-89.3379
Timezone
Central (CT)
Area code
309
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
22.1%
37.5%
37.2%
$50k – $100k
42.2%
33.6%
29.6%
$100k – $200k
27.0%
24.0%
24.4%
Over $200k
8.7%
4.9%
8.8%
Demographics & statistics
$98,686
Median household income
$202,500
Median home value
31.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,129 24.9%
18 and over 3,401 75.1%
65 and over 680 15.0%
Median age 40.7 years
Race & ethnicity
Group Count %
White 4,463 98.1%
Two or more races 47 1%
Hispanic or Latino 18 0.4%
Other race 10 0.2%
Asian 8 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
22.1%
37.5%
37.2%
$50k – $100k
42.2%
33.6%
29.6%
$100k – $200k
27.0%
24.0%
24.4%
Over $200k
8.7%
4.9%
8.8%
Range % of households
Under $10k 1.6%
$10k–$15k 1.9%
$15k–$25k 5.9%
$25k–$35k 5.5%
$35k–$50k 6.4%
$50k–$75k 11.8%
$75k–$100k 18.6%
$100k–$150k 26.5%
$150k–$200k 13.5%
$200k+ 8.3%
Median income $98,686
Housing
Housing overview
Metric Value
Median home value $202,500
Median rent / month $909
Owner occupied 84.6%
Renter occupied 15.4%
Vacant 8.2%
Single-family detached 91.6%
Large apartment buildings 0.4%
Mobile homes 1.3%
Median rooms 6.1
Avg household size (owned) 2.49
Year built
Era %
2020 or later 0.0%
2010–2019 8.7%
2000–2009 12.8%
1990–1999 14.6%
1980–1989 8.5%
1970–1979 22.0%
1960–1969 8.8%
1950–1959 6.0%
1940–1949 5.1%
1939 or earlier 13.5%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 3.4%
2 bedrooms 20.8%
3 bedrooms 52.8%
4 bedrooms 17.3%
5+ bedrooms 5.8%
Vehicles per household
Vehicles % of households
No vehicle 2.3%
1 vehicle 21.7%
2 vehicles 48.6%
3 or more 27.4%
Heating fuel
Fuel type %
Utility gas 61.4%
Electricity 19.4%
Propane / LP gas 19.2%
Households & families
Household type Count %
Married-couple family 1,097 59.8%
Cohabiting couple 139 7.6%
Male householder, no spouse 266 14.5%
Female householder, no spouse 332 18.1%
Households with children under 18 584 31.8%
Households with seniors (65+) 456 24.9%
Average household size 2.47
Marital status
Status Male Female
Never married 24.0% 16.9%
Married 60.8% 61.6%
Separated 0.2% 1.9%
Widowed 0.8% 9.6%
Divorced 14.1% 10.0%
Education
Some college, no degree
24.9%
Graduate / professional
9.9%
Metric %
HS diploma or higher 97.0%
Bachelor's or higher 31.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 127 10.9%
Kindergarten 88 7.5%
Elementary school 504 43.1%
High school 259 22.2%
College / grad school 191 16.3%
Employment
Industry of employment
Education & healthcare
24.3%
Finance & real estate
10.3%
Professional & management
9.2%
Transportation & utilities
4.9%
Public administration
4.6%
Arts, food & hospitality
2.0%
Agriculture & mining
0.9%
Occupation
Category %
Management, business & arts 39.7%
Service 9.8%
Sales & office 22.3%
Natural resources & construction 18.6%
Production & transportation 9.7%
Employment type
Type %
Private sector 79.3%
Government 16.9%
Self-employed 3.9%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 82.4%
Carpool 10.6%
Public transit 0.0%
Walk 0.7%
Work from home 5.7%
Other means 0.6%
Avg commute (minutes) 29.6
Poverty
Married-couple families
1.1%
Female-led households
12.0%
Income support
Source % of households
Social Security 24.5%
Retirement income 27.2%
Supplemental Security 2.7%
Cash public assistance 0.4%
Food stamps / SNAP 3.3%
Health indicators
Condition %
Obesity 32.2%
High blood pressure 28.2%
High cholesterol 31.0%
Diabetes 7.9%
Heart disease 5.0%
Stroke 2.3%
Asthma 9.1%
Arthritis 22.5%
Kidney disease 2.3%
Pulmonary disease 5.5%
Cancer 6.3%
Behavior / access %
Smoking 16.1%
Binge drinking 16.9%
No physical activity 20.2%
Less than 7 hrs sleep 30.7%
Depression 17.0%
Fair or poor health 10.4%
Poor mental health 12.0%
Poor physical health 8.0%
No health insurance 8.4%
Visited doctor (checkup) 75.7%
Visited dentist 69.1%
Cholesterol screening 90.5%
Teeth loss 10.1%
Veterans & disability
Veterans Count %
Civilian veterans 314 9.2%
Disability %
Any disability 9.4%
Under 18 8.0%
18–64 years 5.5%
65 and over 27.4%
Health insurance coverage
Type %
Private insurance 85.3%
Public insurance 25.4%
No insurance 1.5%
Uninsured under 19 0.3%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 4,243 93.7%
Spanish 13 0.3%
Other Indo-European 13 0.3%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 4,515 99.7%
Born in same state 4,502 99.4%
Born in different state 3,885 85.8%
Foreign born 13 0.3%
Naturalized citizen 15 0.3%
Not a US citizen 13 86.7%
Ancestry
Ancestry Count %
French 606 13.4%
Italian 306 6.8%
Arab 204 4.5%
English 150 3.3%
Norwegian 17 0.4%
Ancestry Count %
Dutch 16 0.4%
Polish 15 0.3%
Irish 4 0.1%
German 3 0.1%
Technology access
Metric % of households
Computer access 40.5%
Internet access 96.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 61755
What city is ZIP code 61755 in?
ZIP code 61755 is primarily assigned to Mackinaw, Illinois.
What county is ZIP code 61755 in?
ZIP code 61755 falls within Tazewell County, Illinois.
Is ZIP code 61755 mostly owner-occupied?
85% of occupied units in ZIP code 61755 are owner-occupied, well above the national average.
Does ZIP code 61755 have a large veteran population?
9% of civilians in ZIP code 61755 are veterans, above the national average of ~7%.
What is the population of ZIP code 61755?
ZIP code 61755 has an estimated population of 4,530 residents, with a density of 97 people per square mile.
What is the median household income in ZIP code 61755?
The median household income in ZIP code 61755 is $98,686, above the national median of ~$75,000.
What timezone is ZIP code 61755 in?
ZIP code 61755 observes the CST timezone.
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