ZIP Code 53545 Map
Census ZIP Code Tabulation Area 53545 in Janesville, WI (Rock County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 53545 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
24,703
Households
10,909
Median household income
$73,889
Median age
40.8 years
Median home value
$220,700
Median gross rent
$1,062/mo
Owner-occupied homes
64.7%
Bachelor's degree or higher
29.8%
Below poverty level
9.7%
Land area
22.5 sq mi
Population density
1,098 / sq mi