On CDC estimates, Janesville is healthier than 49% of U.S. towns
Janesville differs from California on 15 of 32 measures CDC estimates: 5 better, 10 worse.
Modeled estimates for adults 18+, CDC’s own estimate for Janesville. How CDC estimates town health
What stands out about health in Janesville
COPD, cancer and arthritis run high in Janesville
1 in 13 adults have COPD (7.8%), vs 5.1% across California. 1 in 11 adults have had cancer (9.5%), vs 6.4% across California. Arthritis is also above the state: 27.4%, vs 20.8% across California. In all, Janesville runs above California on seven of 11 chronic conditions. Conditions ↓
Smoking is more common in Janesville
1 in 7 adults smoke cigarettes (14.7%), vs 10.9% across California. Habits ↓
Nearly everyone in Janesville is insured
Only 6.4% of adults 18–64 have no health insurance, vs 10.6% across California. Checkups ↓
Written from the CDC, Medicare and HRSA data on this page. CDC PLACES 2025 release: modeled estimates for adults, not counts; “higher” and “lower” mean the California figure falls outside Janesville’s likely range; at the ends of CDC’s ranges the grade could be anywhere from D to A−.
What’s behind Janesville’s grade
On seven CDC estimates for adults, Janesville is healthier than 49% of U.S. towns. Obesity holds the grade up (fewer adults with obesity than 74% of U.S. towns); mental distress pulls it down (better than 22%).
Health estimates follow income closely across the country: towns with higher household incomes usually score higher (a correlation of 0.77 across 21,157 graded towns). Janesville’s median household income is $78,466; among the 10,820 U.S. towns within 25% of that ($59K–$98K), it’s healthier than 50%, about where its income would put it.
Where Janesville compares well: no health insurance (ages 18–64), 6.4% (U.S. 11%).
Out of every 100 Janesville adults…
Janesville runs above CA on 9 of 12 conditions. Tap one to see it as people.
Everyday habits, side by side with California
Share of adults, with the California figure marked.
7.8 miles of trails across 2 parks and preserves
Keeping up with care
Share of Janesville adults getting routine care. The full ring is 100%; the dark tick marks California.
Care in and near Janesville
No hospital or community health center in Janesville itself. These are the nearest.
Hospitals: Medicare overall star ratings, 1–5. Community health centers charge on a sliding scale by income. Distances are straight-line from the center of Janesville; ≈ marks a hospital located by its town, not its street. Shortage areas: HRSA Health Professional Shortage Areas (a “population” designation covers specific residents, such as those with low incomes).
How Janesville adults are doing
On 1 of 4 measures, Janesville runs above California.
1 in 3 Janesville adults feel lonely. A hello is a start.
Groups are the easiest way in: a walking group, a book club, your street.
If you or someone you know is struggling, call or text 988, the Suicide & Crisis Lifeline. It’s free, confidential and open 24/7.
Making ends meet
Needs that shape health as much as any doctor visit: food, housing, utilities and a way to get around.
13% of Janesville adults receive SNAP (food stamps), compared with 15.6% across California.
Janesville and the towns around it
How health changes across the town line.
Health next door
| Town | Health | Obesity | Diabetes | Smoking | Figures from |
|---|---|---|---|---|---|
| Janesville | B− | 32.4% | 11.4% | 14.7% | CDC place |
Same-state neighbors only, ordered by length of shared border.
Living with a disability
Shown without a better/worse judgment.
of Janesville adults live with a disability (California 30.4%). Walking or climbing stairs is the most common.
Every CDC estimate for Janesville
Share of adults, 40 measures, with CDC’s likely range.
On the 32 measures below that have a better and a worse direction, Janesville is better than California on 5 and worse on 10; on the rest, the California figure falls inside Janesville’s likely range, so we call them about the same. Disability and SNAP are described, not compared as better or worse.
| Adults who… | Janesville | CA | U.S. | vs CA |
|---|---|---|---|---|
| Overall health | ||||
| Fair or poor health | 21.6%18.2–25.5 | 22.1% | 19.4% | About the same |
| Frequent physical distress (physical health not good 14+ days a month) | 15.4%13.3–17.7 | 13.4% | 13% | About the same |
| Frequent mental distress (mental health not good 14+ days a month) | 18.7%16.4–21 | 16.4% | 15.9% | About the same |
| Conditions | ||||
| Obesity | 32.4%25–40.6 | 27.8% | 32.9% | About the same |
| Diabetes | 11.4%9.7–13.2 | 11.7% | 12% | About the same |
| High blood pressure | 34.8%30.7–39.1 | 30.5% | 34.4% | Worse |
| High cholesterol (adults screened in 5 years) | 37.2%32.9–41.8 | 35.4% | 37.1% | About the same |
| Arthritis | 27.4%24.1–31 | 20.8% | 25.3% | Worse |
| Asthma | 11%9.7–12.4 | 9.3% | 9.9% | Worse |
| Cancer, other than skin cancer | 9.5%8.5–10.5 | 6.4% | 7.9% | Worse |
| Coronary heart disease | 7.3%6.3–8.3 | 5.6% | 6.4% | Worse |
| COPD | 7.8%6.5–9.2 | 5.1% | 6.3% | Worse |
| Stroke | 3.8%3.4–4.3 | 3.1% | 3.4% | Worse |
| Lost all teeth (ages 65+) | 15.9%12.8–19.4 | 10.6% | 12.3% | Worse |
| Habits | ||||
| Smoke cigarettes | 14.7%12–17.8 | 10.9% | 11.8% | Worse |
| No exercise outside work | 22.4%18.1–27.3 | 24.6% | 24.7% | About the same |
| Binge drinking | 17.4%14.4–20.9 | 15.3% | 15.4% | About the same |
| Sleep under 7 hours | 36.7%29.9–44.3 | 35.1% | 36% | About the same |
| Checkups and coverage | ||||
| No health insurance (ages 18–64) | 6.4%5.1–8 | 10.6% | 11% | Better |
| Checkup in the past year | 73.3%69.3–77.3 | 71.9% | 77.4% | About the same |
| Dentist visit in the past year | 64.1%60.3–67.7 | 62.8% | 63.2% | About the same |
| Cholesterol check in 5 years | 86.6%84.6–88.5 | 85.4% | 87.1% | About the same |
| Taking blood pressure medicine (adults with high blood pressure) | 73.4%69.9–76.7 | 71.3% | 76.5% | About the same |
| Colorectal cancer screening (ages 45–75) | 65.3%60.1–70.5 | 57.5% | 65.5% | Better |
| Mammogram in 2 years (women 50–74) | 75.6%67.8–82.8 | 75.7% | 76.4% | About the same |
| Mind and connection | ||||
| Ever told they have depression | 24.9%21.2–28.8 | 20.1% | 20.6% | Worse |
| Feel lonely | 34%28.5–39.5 | 37.3% | 32.5% | About the same |
| Lack social and emotional support | 25%21.1–29 | 28.6% | 23.6% | About the same |
| Everyday needs | ||||
| Worried about having enough food | 13%10.4–16 | 17.9% | 15% | Better |
| Worried about keeping housing | 11.1%9.2–13.1 | 14.9% | 12% | Better |
| Threatened with a utility shut-off | 6.3%5.3–7.4 | 7.3% | 7.6% | About the same |
| Lack reliable transportation | 7.8%6.6–9 | 9.3% | 7.9% | Better |
| Received SNAP (food stamps) | 13%10.5–16 | 15.6% | 11.6% | About the same |
| Disability | ||||
| Any disability | 34%29.1–39.1 | 30.4% | 30.1% | About the same |
| Difficulty walking or climbing stairs | 15.7%13.3–18.5 | 13.8% | 13.6% | About the same |
| Difficulty concentrating or remembering | 15.7%13.6–18.1 | 14.6% | 13.9% | About the same |
| Hearing difficulty | 7.6%6.6–8.6 | 5.9% | 6.7% | Higher |
| Vision difficulty | 4.9%4.3–5.7 | 5.6% | 5.4% | About the same |
| Difficulty doing errands alone | 9%7.7–10.5 | 8.1% | 7.9% | About the same |
| Difficulty dressing or bathing | 4.2%3.6–4.9 | 3.9% | 3.8% | About the same |
Each figure is the share of adults 18+ unless the label says otherwise; small numbers after it are CDC’s likely range (95% interval). “About the same” means the California figure falls inside that range.
Questions about health in Janesville
Is Janesville a healthy place to live?
On seven CDC estimates for adults, Janesville is healthier than 49% of U.S. towns: ≈ B− for health. Among U.S. towns with similar household incomes it’s healthier than 50%. These are modeled estimates of who lives there, not a measure of local care or habits alone.
What is the obesity rate in Janesville?
CDC estimates 32.4% of adults have obesity, likely between 25% and 40.6%, against 27.8% across California and 32.9% nationally.
What hospital is closest to Janesville?
Banner Lassen Medical Center in Susanville, 12.2 miles in a straight line from Janesville’s center point, is the nearest general hospital with an emergency room; Medicare rates it 3 of 5 stars.
How many people in Janesville have no health insurance?
CDC estimates 6.4% of adults ages 18–64 have no health insurance (likely 5.1–8%), against 10.6% across California.
How accurate are these numbers?
They’re modeled estimates: CDC applies national survey answers to each area’s age, sex, race and education mix, so they describe who lives in Janesville more than anything measured there. At the ends of CDC’s ranges the grade could be anywhere from D to A−.
Neighbors talk health
Doctors taking patients, urgent care, staying active in Janesville.
Health estimates: CDC PLACES: Local Data for Better Health, 2025 release. The California figure combines its counties, weighted by adult population. Hospitals and star ratings: Medicare Care Compare (CMS). Health centers and shortage areas: HRSA. The Health Grade is our own summary of CDC’s estimates, not an official rating. Ages: U.S. Census Bureau, American Community Survey. Town boundaries: U.S. Census Bureau. This page isn’t medical advice. In an emergency, call 911.