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ZIP 53548 · Janesville

Who lives in ZIP code 53548 (Janesville, WI): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Janesville, WI · Rock County

uszips 2026
People19,916
Median age43.3
Household income$76,869
Home value$231,795
Median rent$1,045/mo
Poverty10.6%
College degree+26.3%
Commute23 min

Place

Metro area
Janesville-Beloit, WI
Wider region
Madison-Janesville-Beloit, WI
Time zone
Central
Density
103 / sq mi
Housing units
8,562

County

Rock100%

Share of the ZIP's people in each county.

Age mix

Under 1011.0%
10–199.7%
20s13.2%
30s12.2%
40s13.4%
50s12.8%
60s16.0%
70s7.4%
80+4.2%

19.7% are 65 or older; 80.9% are adults.

Household income

Under $25K13.3%
$25K–50K19.0%
$50K–75K15.8%
$75K–100K21.5%
$100K–150K16.3%
$150K+13.9%

30.2% of households earn $100K+. Median per person: $41,487.

Education (adults 25+)

Less than high school5.2%
High school35.6%
Some college32.8%
Bachelor's16.7%
Graduate9.6%

35.8% of degrees are in STEM fields.

Race

White84.9%
Black3.9%
Asian1.8%
Native American0.1%
Pacific Islander0.0%
Other1.9%
Two or more7.3%

8.4% Hispanic or Latino (of any race).

Households & family

Married
52.0%
Never married
27.5%
Divorced
16.2%
Widowed
4.3%
Family size
2.74
Dual-income families
52.8%

Housing

Own their home
69.9%
Rent burden
27.6%
Men / women
50% / 50%

Work

In labor force
64.2%
Unemployment
5.0%
Self-employed
8.2%
Farmers
1.4%

Community

Charitable givers
19.4%
Veterans
6.3%
With a disability
15.0%
No health insurance
6.9%
Limited English
0.6%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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