City safety & data profile

JanesvilleWI

Rock County, Wisconsin. Federal health, economic and safety indicators for Janesville, drawn from Census, CDC and CMS data. Larger than 96% of the 4,640 U.S. cities Areazine tracks.

164K
Population
Top 4%
By size
$75,673
Median income
$231,600
Median home
9.3%
Poverty rate

The quick read

Reading Janesville, WI beyond the headline numbers

Janesville sits inside Rock County, Wisconsin, at roughly 42.68°N, -89.02°W. Its population of 164,350 and median household income of $75,673 are the two most quoted figures, but in isolation they hide the shape of the city. A median home value of $231,600 paired with median rent of $1,037 is the starting point for a price-to-income read that tells you how stretched a typical household is before any other cost of living factor is considered. The 9.3% poverty rate next to that income figure is the better signal — two cities with identical medians can have very different lived realities depending on the income distribution underneath.

Health and healthcare access are the next layer most residents and prospective movers actually care about. CDC PLACES indicators for Janesville show the highest-prevalence measure is obesity at 41.9%, followed by short sleep duration at 37.2%. Within the city boundary, CMS Hospital Compare tracks 4 hospitals with an average rating of 3.7/5 and 3 carrying emergency departments — the ER count is the more actionable figure if you are evaluating a move because it defines the effective trauma radius.

Areazine reconstructs these layers from U.S. Census ACS (Place geography), CDC PLACES, and CMS Hospital Compare — each updated on its own cadence — and pairs them with live alerts from FEMA, NOAA, FDA, and CPSC scoped to the Janesville area. The comparison bars next to each metric anchor the number against a national reference, which is the fastest way to tell whether Janesville is an outlier on a given dimension before drilling into the raw value.

Population
164,350
Rock County
Median Income
$75,673
+11% vs avg
Median Home Value
$231,600
Near average
Median Age
40.3
years

10-Year Trends 2013–2024

20132024
Population
164K+2%
Median Income
$75,673+53%
Median Home Value
$231,600+74%
Poverty Rate
9.3%-35%
Unemployment
3.8%-63%

Economics

Economics indicators for Janesville, WI
IndicatorValue
Median Rent
$1,037/mo
Poverty Rate
9.3% -35% vs avg
Unemployment 3.8%
Bachelor's Degree+ 25.8%
Work From Home 9.2%
Public Transit 0.5%

Population

White 81.6%
African American 4.7%
Asian 1.1%
Two or More Ethnicities 2.5%

Health Profile 15 measures

Health Indicators

Obesity
41.9%
Short Sleep Duration
37.2%
High Blood Pressure
33.4%
Physical Inactivity
29.6%
Binge Drinking
17%
Frequent Mental Distress
16%
Current Smoking
14.7%
Frequent Physical Distress
13.8%
Diabetes
12.3%
Current Asthma
11.2%

Preventive Care

Dental Visit 64.5%
Annual Checkup 76.8%

Other Measures

Lack of Health Insurance
8.8%
Coronary Heart Disease
6.7%
Stroke
3.4%

Hospitals 4 total

Rating Distribution
★★★★★
0
★★★★
2
★★★
1
★★
0
0
Average Rating
3.7/5
Total Hospitals
4
With ER
3
BELOIT HEALTH SYSTEM
BELOIT · Acute Care Hospitals · ER
★★★★☆
SSM HEALTH ST MARY'S HOSPITAL - JANESVILLE
JANESVILLE · Acute Care Hospitals · ER
★★★★☆
MERCY HEALTH SYSTEM CORP
JANESVILLE · Acute Care Hospitals · ER
★★★☆☆

Frequently Asked Questions 6

What is the population of Janesville, WI?
Janesville, WI has a population of 164,350 people, located in Rock County, Wisconsin.
What is the median household income in Janesville?
The median household income in Janesville, WI is $75,673 per year. The poverty rate is 9.3%.
What is the median home value in Janesville?
The median home value in Janesville, WI is $231,600. Median rent is $1,037/month.
What are the top health concerns in Janesville?
The top health indicators in Janesville include Obesity (41.9%), Short Sleep Duration (37.2%), High Blood Pressure (33.4%). Data from CDC PLACES.
How many hospitals are in Janesville?
Janesville has 4 hospitals with an average rating of 3.7/5 stars. 3 have emergency departments.
What is the median age in Janesville?
The median age in Janesville, WI is 40.3 years. 25.8% of residents have a bachelor's degree or higher.

Safety Context

Janesville, WI is located in Rock County, Wisconsin. With a population of 164K and a median household income of $75,673, the community faces health challenges including obesity and short sleep duration. Residents have access to 4 hospitals with an average rating of 3.7/5 stars. Safety alerts for the Janesville area are monitored from federal and state agencies including FEMA, NOAA, FDA, and CPSC.

Safety Guides

Primary source data

Nearby Cities 8

Data Sources

All data on this page comes from official U.S. government sources. Population and economic data from the Census Bureau American Community Survey (2022 5-year estimates). Health data from the CDC PLACES program (2023). Hospital ratings from CMS Hospital Compare (2024). Climate data from NOAA. Education data from NCES. Cost of living from Bureau of Economic Analysis. Crime statistics, where referenced on Areazine, originate from the FBI Crime Data Explorer. Housing market figures referenced on Areazine come from HUD Fair Market Rents. Data is county-level (Rock County) as the smallest consistent geographic unit across all sources.