Onyx, CA health
Onyx differs from California on 23 of 40 measures. It has fewer uninsured adults (7.4% vs 10.6%) and fewer adults lacking emotional support (22.7% vs 28.6%). Where it trails the state: more adults with COPD (11% vs 5.1%).
CDC PLACES 2025 · adults 18+ · CDC's estimate for OnyxNot graded
Health Grades cover towns with 1,000 or more residents. CDC's estimates for a place of 245 people are less certain, so we show Onyx's figures without a grade.
How Onyx compares with California
Each theme counts how many of its measures are better, worse or too close to call against the state. Tap one to jump to it.
Chronic conditions
Habits
Care & screenings
Mind & connection
Everyday needs
Disability
Out of every 100 Onyx adults…
Bars show Onyx; the black tick is California. Tap a condition to see it as people.
Everyday habits, side by side with the state
CA 24.6%
CA 35.1%
CA 15.3%
CA 10.9%
Keeping up with care
Share of Onyx adults getting routine care. The full ring is 100%; the dark tick marks California.
How Onyx adults are doing
Making ends meet
Needs that shape health as much as any doctor visit: food, housing, utilities and a way to get around.
21% of Onyx adults receive SNAP (food stamps), compared with 15.6% across California.
Living with a disability
of Onyx adults live with a disability (California 30.4%). Walking or climbing stairs is the most common.
Black tick: California. Shown without a better/worse judgment.
Care in and near Onyx
No hospital or community health center in Onyx 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 Onyx. Shortage areas: HRSA Health Professional Shortage Areas.
All 40 measures for Onyx
| Measure | Onyx | Margin | California | |
|---|---|---|---|---|
| Chronic conditions | ||||
| High blood pressure | 43.8% | 39.7–47.6% | 30.5% | worse |
| High cholesterol | 40.9% | 36.9–44.9% | 35.4% | worse |
| Obesity | 36.2% | 30.5–41.9% | 27.8% | worse |
| Arthritis | 34.7% | 31.1–38.1% | 20.8% | worse |
| Depression | 25.1% | 21.8–28.6% | 20.1% | worse |
| Lost all teeth (65+) | 15.3% | 12.5–18.6% | 10.6% | worse |
| Asthma | 11.5% | 10.1–13% | 9.3% | worse |
| Cancer (not skin) | 11.6% | 10.5–12.8% | 6.4% | worse |
| Diabetes | 16.8% | 14.5–19.3% | 11.7% | worse |
| COPD | 11% | 9.1–13.1% | 5.1% | worse |
| Heart disease | 10.7% | 9.4–12.1% | 5.6% | worse |
| Stroke | 5.6% | 4.9–6.4% | 3.1% | worse |
| Habits | ||||
| Smoke cigarettes | 15.5% | 12.6–19% | 10.9% | worse |
| Binge drink | 14.2% | 11.8–16.7% | 15.3% | about the same |
| Get no exercise | 28.9% | 24.2–33.7% | 24.6% | about the same |
| Sleep under 7 hours | 35.6% | 30.8–40.8% | 35.1% | about the same |
| Care & screenings | ||||
| Yearly checkup | 78.2% | 74.9–81% | 71.9% | better |
| Dentist visit | 57.1% | 53.6–60.6% | 62.8% | worse |
| Cholesterol check | 87.7% | 85.8–89.4% | 85.4% | better |
| Colon screening | 60.4% | 55.3–65.5% | 57.5% | about the same |
| Mammogram | 69% | 61–76.3% | 75.7% | about the same |
| Taking BP meds | 78.4% | 75.3–81.1% | 71.3% | better |
| No health insurance | 7.4% | 5.8–9.3% | 10.6% | better |
| Mind & connection | ||||
| Feel lonely | 31% | 26.6–35.6% | 37.3% | better |
| Lack emotional support | 22.7% | 19.3–26.4% | 28.6% | better |
| Frequent mental distress | 18.3% | 16.1–20.7% | 16.4% | about the same |
| Fair or poor health | 27.3% | 23.5–31.2% | 22.1% | worse |
| Frequent physical distress | 18.4% | 15.9–20.9% | 13.4% | worse |
| Everyday needs | ||||
| Food insecurity | 17.5% | 14.3–21.3% | 17.9% | about the same |
| Housing insecurity | 13% | 10.9–15.6% | 14.9% | about the same |
| Utility shut-off threat | 9% | 7.5–10.6% | 7.3% | worse |
| No reliable transportation | 10.2% | 8.7–11.9% | 9.3% | about the same |
| Receive SNAP | 21% | 17.2–25.4% | 15.6% | |
| Disability | ||||
| Any disability | 40.7% | 35.9–45.4% | 30.4% | |
| Walking or climbing stairs | 23.5% | 20.1–26.9% | 13.8% | |
| Thinking or memory | 16.7% | 14.4–19.2% | 14.6% | |
| Hearing | 10.6% | 9.2–12% | 5.9% | |
| Vision | 8% | 6.9–9.2% | 5.6% | |
| Dressing or bathing | 6.5% | 5.5–7.6% | 3.9% | |
| Errands alone | 11.8% | 10.1–13.8% | 8.1% | |
How CDC estimates town health
CDC PLACES: Local Data for Better Health, 2025 release. The California figure combines its counties, weighted by adult population.
Health estimates: CDC PLACES. Hospitals and star ratings: Medicare Care Compare (CMS). Health centers and shortage areas: HRSA. Town boundaries: U.S. Census Bureau.