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Illinois ZIP Codes
Winnebago County
Rockford, IL
61102
61102 ZIP Code — Rockford, IL
Winnebago County, Illinois
ZIP code 61102 is located in
Rockford ,
Illinois ,
within Winnebago County .
It covers approximately 34.11 square miles and serves a population of
16,875 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 815/779 .
About ZIP code 61102
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 $81,100. Owner-occupancy sits near the national average at 60%.
Median household income is $41,097. Poverty affects 25% of residents, above the national average. SNAP benefit usage at 32% of households reflects economic stress in the area. 30% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 23 minutes is near the national average.
College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of obesity (49%), diabetes (15%), smoking (26%) compared to national benchmarks.
Overall, ZIP code 61102 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.
61102 ZIP code map
View map of 61102
Cities in ZIP code 61102
Below are the cities the US Postal Service accepts for ZIP code 61102. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
16,875
Population density
495 / sq mi
State FIPS
17
County FIPS
201
Geography
Land area
34.11 sq mi
Water area
0.88 sq mi
Latitude
42.2177
Longitude
-89.1663
Timezone
Central (CT)
Area code
815/779
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
63.1%
45.2%
37.2%
$50k – $100k
23.1%
31.4%
29.6%
$100k – $200k
11.6%
19.5%
24.4%
Over $200k
2.1%
4.0%
8.8%
Demographics & statistics
$41,097
Median household income
Age distribution
Age summary
Group Count %
Under 18 4,235 25.1%
18 and over 12,640 74.9%
65 and over 2,330 13.8%
Median age 34.5 years
Race & ethnicity
Black or African American
29.3%
American Indian / Alaska Native
0.8%
Native Hawaiian / Pacific Islander
0.1%
Group Count %
White 7,295 37.2%
Black or African American 5,756 29.3%
Hispanic or Latino 2,758 14%
Two or more races 2,047 10.4%
Other race 1,493 7.6%
American Indian / Alaska Native 152 0.8%
Asian 119 0.6%
Native Hawaiian / Pacific Islander 13 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
63.1%
45.2%
37.2%
$50k – $100k
23.1%
31.4%
29.6%
$100k – $200k
11.6%
19.5%
24.4%
Over $200k
2.1%
4.0%
8.8%
Range % of households
Under $10k 6.9%
$10k–$15k 7.9%
$15k–$25k 11.8%
$25k–$35k 17.6%
$35k–$50k 15.2%
$50k–$75k 15.5%
$75k–$100k 10.3%
$100k–$150k 8.9%
$150k–$200k 3.3%
$200k+ 2.8%
Median income $41,097
Housing
Housing overview
Metric Value
Median home value $81,100
Median rent / month $845
Owner occupied 60.1%
Renter occupied 39.9%
Vacant 13.5%
Single-family detached 77.0%
Large apartment buildings 0.3%
Mobile homes 3.4%
Median rooms 5.4
Avg household size (owned) 2.45
Year built
Era %
2020 or later 0.0%
2010–2019 0.9%
2000–2009 7.1%
1990–1999 8.0%
1980–1989 3.5%
1970–1979 8.4%
1960–1969 12.9%
1950–1959 21.1%
1940–1949 12.5%
1939 or earlier 25.5%
Bedrooms
Size % of units
No bedroom (studio) 1.1%
1 bedroom 6.6%
2 bedrooms 34.8%
3 bedrooms 44.3%
4 bedrooms 10.1%
5+ bedrooms 3.1%
Vehicles per household
Vehicles % of households
No vehicle 10.4%
1 vehicle 35.2%
2 vehicles 33.5%
3 or more 20.8%
Heating fuel
Fuel type %
Utility gas 88.1%
Electricity 10.3%
Propane / LP gas 0.6%
Wood 0.5%
Solar 0.1%
No fuel used 0.3%
Households & families
Household type Count %
Married-couple family 2,449 38.8%
Cohabiting couple 191 3.0%
Male householder, no spouse 1,527 24.2%
Female householder, no spouse 2,153 34.1%
Households with children under 18 2,158 34.1%
Households with seniors (65+) 1,719 27.2%
Average household size 2.53
Marital status
Status Male Female
Never married 48.4% 39.6%
Married 38.9% 38.5%
Separated 2.1% 3.4%
Widowed 2.4% 6.3%
Divorced 8.3% 12.3%
Education
Some HS, no diploma
14.3%
Some college, no degree
22.3%
Graduate / professional
3.1%
Metric %
HS diploma or higher 77.9%
Bachelor's or higher 9.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 221 5.6%
Kindergarten 223 5.7%
Elementary school 1,732 44.2%
High school 1,038 26.5%
College / grad school 704 18.0%
Employment
Industry of employment
Education & healthcare
20.1%
Professional & management
9.1%
Arts, food & hospitality
7.8%
Transportation & utilities
7.6%
Finance & real estate
2.7%
Public administration
2.0%
Agriculture & mining
0.6%
Occupation
Category %
Management, business & arts 19.2%
Service 22.5%
Sales & office 18.4%
Natural resources & construction 12.2%
Production & transportation 27.6%
Employment type
Type %
Private sector 84.5%
Government 11.1%
Self-employed 4.4%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 76.3%
Carpool 12.6%
Public transit 2.1%
Walk 0.8%
Work from home 6.6%
Other means 1.6%
Avg commute (minutes) 22.5
Poverty
Married-couple families
5.5%
Female-led households
42.4%
Income support
Source % of households
Social Security 30.4%
Retirement income 19.5%
Supplemental Security 8.8%
Cash public assistance 8.6%
Food stamps / SNAP 32.4%
Health indicators
Condition %
Obesity 49.3%
High blood pressure 39.7%
High cholesterol 31.5%
Diabetes 15.1%
Heart disease 7.0%
Stroke 4.5%
Asthma 11.7%
Arthritis 27.0%
Kidney disease 3.8%
Pulmonary disease 9.0%
Cancer 5.1%
Behavior / access %
Smoking 25.9%
Binge drinking 13.4%
No physical activity 37.1%
Less than 7 hrs sleep 37.7%
Depression 18.5%
Fair or poor health 25.4%
Poor mental health 15.8%
Poor physical health 14.1%
No health insurance 20.8%
Visited doctor (checkup) 77.7%
Visited dentist 48.4%
Cholesterol screening 85.8%
Teeth loss 26.1%
Veterans & disability
Veterans Count %
Civilian veterans 693 5.5%
Disability %
Any disability 13.2%
Under 18 3.7%
18–64 years 12.8%
65 and over 31.9%
Health insurance coverage
Type %
Private insurance 46.6%
Public insurance 54.7%
No insurance 10.2%
Uninsured under 19 4.7%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 15,828 93.8%
Spanish 1,287 8.1%
Other Indo-European 1,169 7.4%
Asian & Pacific Islander 104 0.7%
Other languages 14 0.1%
Place of birth & citizenship
Origin Count %
Native born (US) 15,041 89.1%
Born in same state 14,919 88.4%
Born in different state 12,395 73.5%
Foreign born 122 0.7%
Naturalized citizen 1,834 10.9%
Not a US citizen 554 30.2%
Ancestry
Ancestry Count %
Italian 1,076 6.4%
French 566 3.4%
Arab 552 3.3%
Polish 223 1.3%
Ancestry Count %
English 153 0.9%
Dutch 69 0.4%
Norwegian 64 0.4%
Technology access
Metric % of households
Computer access 37.5%
Internet access 90.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 61102
What city is ZIP code 61102 in?
ZIP code 61102 is primarily assigned to Rockford, Illinois.
What county is ZIP code 61102 in?
ZIP code 61102 falls within Winnebago County, Illinois.
What is the poverty rate in ZIP code 61102?
25% of residents in ZIP code 61102 live below the poverty line, above the national average.
How educated is the population of ZIP code 61102?
10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What are the health statistics for ZIP code 61102?
Health data for ZIP code 61102 shows elevated rates of obesity (49%) and diabetes (15%) and smoking (26%) compared to national benchmarks.
What is the typical home value in ZIP code 61102?
The median home value in ZIP code 61102 is $81,100.
What timezone is ZIP code 61102 in?
ZIP code 61102 observes the CST timezone.
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