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Wisconsin ZIP Codes
Rock County
Janesville, WI
53546
53546 ZIP Code — Janesville, WI
Rock County, Wisconsin
ZIP code 53546 is located in
Janesville ,
Wisconsin ,
within Rock County .
It covers approximately 81.11 square miles and serves a population of
29,352 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 608 .
About ZIP code 53546
The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $198,600. Owner-occupancy sits near the national average at 73%.
Median household income is $70,317. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 22 minutes is near the national average.
Educational attainment is near the national average, with 25% of residents holding a bachelor's degree or higher.
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Cities in ZIP code 53546
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
29,352
Population density
362 / sq mi
State FIPS
55
County FIPS
105
Geography
Land area
81.11 sq mi
Water area
0.49 sq mi
Latitude
42.6672
Longitude
-88.9454
Timezone
Central (CT)
Area code
608
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
43.9%
42.6%
39.4%
$50k – $100k
34.2%
34.1%
33.0%
$100k – $200k
18.8%
20.6%
22.4%
Over $200k
3.0%
2.7%
5.2%
Demographics & statistics
$70,317
Median household income
$198,600
Median home value
$1,030
Median monthly rent
25.4%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 6,506 22.2%
18 and over 22,846 77.8%
65 and over 4,716 16.1%
Median age 40.9 years
Race & ethnicity
Black or African American
1.2%
American Indian / Alaska Native
0.2%
Group Count %
White 25,642 82.1%
Hispanic or Latino 1,863 6%
Two or more races 1,485 4.8%
Other race 1,246 4%
Asian 549 1.8%
Black or African American 381 1.2%
American Indian / Alaska Native 49 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
43.9%
42.6%
39.4%
$50k – $100k
34.2%
34.1%
33.0%
$100k – $200k
18.8%
20.6%
22.4%
Over $200k
3.0%
2.7%
5.2%
Range % of households
Under $10k 2.6%
$10k–$15k 4.3%
$15k–$25k 7.6%
$25k–$35k 6.9%
$35k–$50k 11.9%
$50k–$75k 20.0%
$75k–$100k 16.8%
$100k–$150k 17.9%
$150k–$200k 7.9%
$200k+ 4.1%
Median income $70,317
Housing
Housing overview
Metric Value
Median home value $198,600
Median rent / month $1,030
Owner occupied 72.7%
Renter occupied 27.3%
Vacant 3.2%
Single-family detached 66.5%
Large apartment buildings 5.2%
Mobile homes 4.8%
Median rooms 5.7
Avg household size (owned) 2.58
Year built
Era %
2020 or later 0.1%
2010–2019 3.3%
2000–2009 13.0%
1990–1999 19.4%
1980–1989 14.1%
1970–1979 21.0%
1960–1969 13.4%
1950–1959 8.7%
1940–1949 1.8%
1939 or earlier 5.2%
Bedrooms
Size % of units
No bedroom (studio) 2.4%
1 bedroom 5.3%
2 bedrooms 29.1%
3 bedrooms 47.6%
4 bedrooms 12.6%
5+ bedrooms 3.0%
Vehicles per household
Vehicles % of households
No vehicle 5.2%
1 vehicle 33.2%
2 vehicles 39.7%
3 or more 21.9%
Heating fuel
Fuel type %
Utility gas 72.5%
Electricity 21.6%
Propane / LP gas 4.1%
Fuel oil 0.4%
Wood 0.6%
No fuel used 0.2%
Households & families
Household type Count %
Married-couple family 5,432 45.0%
Cohabiting couple 1,203 10.0%
Male householder, no spouse 1,999 16.6%
Female householder, no spouse 3,441 28.5%
Households with children under 18 3,293 27.3%
Households with seniors (65+) 3,280 27.2%
Average household size 2.41
Marital status
Status Male Female
Never married 32.7% 28.5%
Married 51.4% 46.8%
Separated 1.1% 1.7%
Widowed 2.5% 10.4%
Divorced 12.3% 12.6%
Education
Some college, no degree
24.5%
Graduate / professional
7.8%
Metric %
HS diploma or higher 94.5%
Bachelor's or higher 25.4%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 468 6.9%
Kindergarten 346 5.1%
Elementary school 2,982 44.2%
High school 1,462 21.7%
College / grad school 1,485 22.0%
Employment
Industry of employment
Education & healthcare
20.1%
Arts, food & hospitality
9.0%
Professional & management
6.7%
Transportation & utilities
5.2%
Finance & real estate
4.4%
Public administration
3.4%
Agriculture & mining
1.4%
Occupation
Category %
Management, business & arts 32.1%
Service 14.2%
Sales & office 20.7%
Natural resources & construction 9.3%
Production & transportation 23.8%
Employment type
Type %
Private sector 83.6%
Government 12.1%
Self-employed 3.9%
Unpaid family workers 0.4%
Commute
Method %
Drive alone 83.5%
Carpool 8.0%
Public transit 0.4%
Walk 0.4%
Work from home 6.7%
Other means 1.0%
Avg commute (minutes) 22.1
Poverty
Married-couple families
2.9%
Female-led households
23.7%
Income support
Source % of households
Social Security 31.9%
Retirement income 26.9%
Supplemental Security 3.7%
Cash public assistance 2.3%
Food stamps / SNAP 9.5%
Health indicators
Condition %
Obesity 34.3%
High blood pressure 29.2%
High cholesterol 31.3%
Diabetes 8.6%
Heart disease 5.7%
Stroke 2.7%
Asthma 9.8%
Arthritis 22.9%
Kidney disease 2.6%
Pulmonary disease 5.8%
Cancer 6.6%
Behavior / access %
Smoking 17.7%
Binge drinking 23.4%
No physical activity 20.5%
Less than 7 hrs sleep 30.2%
Depression 20.6%
Fair or poor health 11.3%
Poor mental health 13.5%
Poor physical health 9.4%
No health insurance 10.4%
Visited doctor (checkup) 71.1%
Visited dentist 70.9%
Cholesterol screening 87.1%
Teeth loss 11.2%
Veterans & disability
Veterans Count %
Civilian veterans 1,699 7.4%
Disability %
Any disability 14.2%
Under 18 5.5%
18–64 years 13.4%
65 and over 29.3%
Health insurance coverage
Type %
Private insurance 79.5%
Public insurance 32.9%
No insurance 4.6%
Uninsured under 19 2.8%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 27,809 94.7%
Spanish 817 2.9%
Other Indo-European 631 2.3%
Asian & Pacific Islander 153 0.6%
Other languages 6 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 28,234 96.2%
Born in same state 28,060 95.6%
Born in different state 20,932 71.3%
Foreign born 174 0.6%
Naturalized citizen 1,118 3.8%
Not a US citizen 533 47.7%
Ancestry
Ancestry Count %
Polish 3,867 13.2%
Italian 3,852 13.1%
French 2,512 8.6%
Arab 1,361 4.6%
English 563 1.9%
Ancestry Count %
Dutch 129 0.4%
Irish 121 0.4%
Norwegian 92 0.3%
German 63 0.2%
Technology access
Metric % of households
Computer access 41.1%
Internet access 94.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 53546
What city is ZIP code 53546 in?
ZIP code 53546 is primarily assigned to Janesville, Wisconsin.
What county is ZIP code 53546 in?
ZIP code 53546 falls within Rock County, Wisconsin.
What is the population of ZIP code 53546?
ZIP code 53546 has an estimated population of 29,352 residents, with a density of 362 people per square mile.
What is the typical home value in ZIP code 53546?
The median home value in ZIP code 53546 is $198,600.
What is the median household income in ZIP code 53546?
The median household income in ZIP code 53546 is $70,317, below the national median of ~$75,000.
What timezone is ZIP code 53546 in?
ZIP code 53546 observes the CST timezone.
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