ZIP codes
3
Janesville, WI Demographics & ZIP Codes
Janesville, Wisconsin demographics and median household income by ZIP code (in Rock County) — 3 ZIP codes — population 73,928 — median income $72,952 — avg. home value $216,900. Compare income, housing, and population across ZIP codes on US5.
Population
73,928
Median household income (avg.)
$72,952
97% of U.S. median
Average home value
$216,900
62% of U.S. median
Average rent
$846
73% of U.S. median
Median age (avg.)
41.1
Janesville demographics
Janesville, Wisconsin covers 3 ZIP codes primarily in Rock County, with a combined ZIP-area population of about 73,928.
Across ZIP codes with age data, the average median age is about 41.1 years.
Median household income in Janesville
The average median household income across ZIP codes in Janesville, Wisconsin is about $72,952 — about 4% below the WI ZIP average ($76,216), and about 3% below the U.S. median ($75,149).
Among ZIPs with income data, 53548 is near the top at about $74,696, while 53545 is near the bottom at about $70,730.
Housing in Janesville
For housing in Janesville, Wisconsin, the average median home value is about $216,900 and the average median rent is about $846.
The most populous ZIP in this set is 53546 (about 29,482 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Janesville
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 53546 | Janesville | Rock County | WI | 29,482 | $73,430 | $220,100 |
| 53545 | Janesville | Rock County | WI | 23,937 | $70,730 | $204,000 |
| 53548 | Janesville | Rock County | WI | 20,509 | $74,696 | $226,600 |
Frequently asked questions
What are the demographics of Janesville?
Janesville, Wisconsin has a combined ZIP-area population of about 73,928 across 3 ZIP codes (primarily Rock County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Janesville?
The average median household income across ZIP codes in Janesville, Wisconsin is about $72,952, about 4% below the state ZIP average ($76,216), and about 3% below the U.S. median ($75,149). Average median home value is about $216,900. Among ZIPs with data, 53548 is near the top ($74,696) and 53545 is near the bottom ($70,730).
How many ZIP codes are in Janesville?
Janesville, Wisconsin includes 3 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Janesville?
This page lists ZIP codes in Janesville, Wisconsin with population, median household income, and home value. Select a ZIP for a full demographics profile.