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Illinois ZIP Codes
Winnebago County
Machesney Park, IL
61115
61115 ZIP Code — Machesney Park, IL
Winnebago County, Illinois
ZIP code 61115 is located in
Machesney Park ,
Illinois ,
within Winnebago County .
It covers approximately 10.65 square miles and serves a population of
22,542 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 815 .
About ZIP code 61115
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 $150,400. Owner-occupancy is high at 80%, well above the national average.
Median household income is $70,500. 33% 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 23 minutes is near the national average.
College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 61115 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.
61115 ZIP code map
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Cities in ZIP code 61115
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
22,542
Population density
2,117 / sq mi
State FIPS
17
County FIPS
201
Geography
Land area
10.65 sq mi
Water area
0.21 sq mi
Latitude
42.3634
Longitude
-89.0207
Timezone
Central (CT)
Area code
815
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
34.8%
45.2%
37.2%
$50k – $100k
38.3%
31.4%
29.6%
$100k – $200k
24.3%
19.5%
24.4%
Over $200k
2.7%
4.0%
8.8%
Demographics & statistics
$70,500
Median household income
$150,400
Median home value
$1,113
Median monthly rent
16.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 4,893 21.7%
18 and over 17,649 78.3%
65 and over 3,722 16.5%
Median age 40.5 years
Race & ethnicity
Black or African American
3.7%
Group Count %
White 19,441 82.7%
Two or more races 1,271 5.4%
Hispanic or Latino 963 4.1%
Black or African American 878 3.7%
Asian 505 2.1%
Other race 428 1.8%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
34.8%
45.2%
37.2%
$50k – $100k
38.3%
31.4%
29.6%
$100k – $200k
24.3%
19.5%
24.4%
Over $200k
2.7%
4.0%
8.8%
Range % of households
Under $10k 2.1%
$10k–$15k 1.4%
$15k–$25k 5.4%
$25k–$35k 10.5%
$35k–$50k 14.2%
$50k–$75k 20.2%
$75k–$100k 13.8%
$100k–$150k 17.3%
$150k–$200k 9.2%
$200k+ 5.8%
Median income $70,500
Housing
Housing overview
Metric Value
Median home value $150,400
Median rent / month $1,113
Owner occupied 80.3%
Renter occupied 19.7%
Vacant 6.2%
Single-family detached 89.4%
Large apartment buildings 0.4%
Mobile homes 0.9%
Median rooms 5.8
Avg household size (owned) 2.60
Year built
Era %
2020 or later 0.3%
2010–2019 3.9%
2000–2009 12.8%
1990–1999 13.5%
1980–1989 12.1%
1970–1979 23.2%
1960–1969 13.6%
1950–1959 13.0%
1940–1949 4.5%
1939 or earlier 3.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 2.2%
2 bedrooms 15.7%
3 bedrooms 66.6%
4 bedrooms 13.4%
5+ bedrooms 2.1%
Vehicles per household
Vehicles % of households
No vehicle 3.8%
1 vehicle 25.8%
2 vehicles 40.9%
3 or more 29.6%
Heating fuel
Fuel type %
Utility gas 92.8%
Electricity 6.3%
Propane / LP gas 0.4%
Wood 0.4%
Households & families
Household type Count %
Married-couple family 4,400 51.4%
Cohabiting couple 1,000 11.7%
Male householder, no spouse 1,254 14.7%
Female householder, no spouse 1,904 22.2%
Households with children under 18 2,601 30.4%
Households with seniors (65+) 2,763 32.3%
Average household size 2.63
Marital status
Status Male Female
Never married 32.6% 30.2%
Married 52.4% 47.7%
Separated 1.2% 1.0%
Widowed 1.9% 9.6%
Divorced 11.9% 11.5%
Education
Some college, no degree
28.4%
Graduate / professional
5.1%
Metric %
HS diploma or higher 90.9%
Bachelor's or higher 16.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 216 4.0%
Kindergarten 310 5.7%
Elementary school 2,319 42.7%
High school 1,317 24.2%
College / grad school 1,273 23.4%
Employment
Industry of employment
Education & healthcare
20.9%
Arts, food & hospitality
9.6%
Transportation & utilities
6.3%
Professional & management
6.3%
Finance & real estate
3.9%
Public administration
3.1%
Agriculture & mining
0.2%
Occupation
Category %
Management, business & arts 32.3%
Service 13.2%
Sales & office 19.1%
Natural resources & construction 13.7%
Production & transportation 21.7%
Employment type
Type %
Private sector 82.5%
Government 12.4%
Self-employed 4.5%
Unpaid family workers 0.7%
Commute
Method %
Drive alone 86.3%
Carpool 5.9%
Public transit 0.0%
Walk 1.2%
Work from home 6.2%
Other means 0.4%
Avg commute (minutes) 22.7
Poverty
Married-couple families
2.6%
Female-led households
17.3%
Income support
Source % of households
Social Security 32.8%
Retirement income 26.1%
Supplemental Security 3.1%
Cash public assistance 2.1%
Food stamps / SNAP 12.3%
Health indicators
Condition %
Obesity 40.1%
High blood pressure 32.6%
High cholesterol 32.0%
Diabetes 9.6%
Heart disease 5.9%
Stroke 2.8%
Asthma 9.7%
Arthritis 25.3%
Kidney disease 2.6%
Pulmonary disease 7.1%
Cancer 6.1%
Behavior / access %
Smoking 20.0%
Binge drinking 16.5%
No physical activity 25.0%
Less than 7 hrs sleep 31.9%
Depression 18.8%
Fair or poor health 14.1%
Poor mental health 13.6%
Poor physical health 9.9%
No health insurance 11.4%
Visited doctor (checkup) 75.6%
Visited dentist 64.2%
Cholesterol screening 88.8%
Teeth loss 14.8%
Veterans & disability
Veterans Count %
Civilian veterans 1,311 7.4%
Disability %
Any disability 12.6%
Under 18 2.7%
18–64 years 10.5%
65 and over 33.8%
Health insurance coverage
Type %
Private insurance 71.1%
Public insurance 35.5%
No insurance 5.6%
Uninsured under 19 0.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 21,607 95.9%
Spanish 569 2.6%
Other Indo-European 202 0.9%
Asian & Pacific Islander 315 1.5%
Other languages 52 0.2%
Place of birth & citizenship
Origin Count %
Native born (US) 21,478 95.3%
Born in same state 21,312 94.5%
Born in different state 17,731 78.7%
Foreign born 166 0.7%
Naturalized citizen 1,064 4.7%
Not a US citizen 554 52.1%
Ancestry
Ancestry Count %
Italian 3,649 16.2%
French 1,982 8.8%
Arab 674 3%
Polish 521 2.3%
Dutch 221 1%
Ancestry Count %
English 198 0.9%
Norwegian 87 0.4%
German 83 0.4%
Irish 42 0.2%
Technology access
Metric % of households
Computer access 38.0%
Internet access 95.7%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 61115
What city is ZIP code 61115 in?
ZIP code 61115 is primarily assigned to Machesney Park, Illinois.
What county is ZIP code 61115 in?
ZIP code 61115 falls within Winnebago County, Illinois.
Is ZIP code 61115 mostly owner-occupied?
80% of occupied units in ZIP code 61115 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 61115?
The median home value in ZIP code 61115 is $150,400.
What is the population of ZIP code 61115?
ZIP code 61115 has an estimated population of 22,542 residents, with a density of 2,117 people per square mile.
What is the median household income in ZIP code 61115?
The median household income in ZIP code 61115 is $70,500, below the national median of ~$75,000.
What timezone is ZIP code 61115 in?
ZIP code 61115 observes the CST timezone.
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