Among U.S. towns with similar household incomes, Castle Hill is healthier than 22%
Castle Hill differs from California on 22 of 32 measures CDC estimates: 19 better, 3 worse.
Modeled estimates for adults 18+, CDC’s own estimate for Castle Hill. How CDC estimates town health
What stands out about health in Castle Hill
Against towns with similar incomes, Castle Hill’s lead shrinks
Castle Hill is healthier than 96% of U.S. towns, but 22% of the 436 towns with similar household incomes ($188K–$313K). Part of its edge is what towns with its incomes tend to have. Health Grade ↓
Cancer and arthritis run high in Castle Hill
1 in 9 adults have had cancer (11%), vs 6.4% across California. 1 in 4 adults have arthritis (26.4%), vs 20.8% across California. Conditions ↓
Castle Hill keeps up with checkups
It beats California on four of five routine checkups and screenings, including yearly checkups (77.3% vs 71.9%) and dentist visits (74.9% vs 62.8%). Checkups ↓
Castle Hill is an active town
Only 17.3% of adults get no exercise outside work, vs 24.6% across California. Habits ↓
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 Castle Hill’s likely range.
What’s behind Castle Hill’s grade
On seven CDC estimates for adults, Castle Hill is healthier than 96% of U.S. towns. All seven estimates beat the typical U.S. town. The strongest is smoking (fewer adults who smoke than 98% of towns); the weakest is diabetes, still better than 82%.
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). Castle Hill’s median household income is $250,001; among the 436 U.S. towns within 25% of that ($188K–$313K), it’s healthier than 22%, less than its income alone would suggest.
Out of every 100 Castle Hill adults…
Castle Hill runs below CA on 2 of 12 conditions and above it on 3. Tap one to see it as people.
Keeping up with care
Share of Castle Hill adults getting routine care. The full ring is 100%; the dark tick marks California.
Everyday habits, side by side with California
Share of adults, with the California figure marked.
Walk with neighbors
The easiest exercise habit to keep is one with company.
Care in and near Castle Hill
No hospital or community health center in Castle Hill 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 Castle Hill; ≈ marks a hospital located by its town, not its street. Shortage areas: HRSA Health Professional Shortage Areas.
How Castle Hill adults are doing
On 3 of 4 measures, Castle Hill does better than California.
3 in 10 Castle Hill 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.
4.9% of Castle Hill adults receive SNAP (food stamps), compared with 15.6% across California.
Castle Hill and the towns around it
Castle Hill’s Health Grade ranks 2nd of 3 graded towns around it.
Nearby towns are shaded from CDC’s estimates for their ZIP codes, or CDC’s own figure for cities and villages.
Health next door
| Town | Health | Obesity | Diabetes | Smoking | Figures from |
|---|---|---|---|---|---|
| Castle Hill | A+ | 25.2% | 9.9% | 6.8% | CDC place |
| Alamo | A+ | 24% | 9.3% | 5.7% | CDC place |
| Walnut Creek | A+ | 24.2% | 9.7% | 6.4% | CDC place |
Same-state neighbors only, ordered by length of shared border.
Living with a disability
Shown without a better/worse judgment.
of Castle Hill adults live with a disability (California 30.4%). Walking or climbing stairs is the most common.
Every CDC estimate for Castle Hill
Share of adults, 40 measures, with CDC’s likely range.
On the 32 measures below that have a better and a worse direction, Castle Hill is better than California on 19 and worse on 3; on the rest, the California figure falls inside Castle Hill’s likely range, so we call them about the same. Disability and SNAP are described, not compared as better or worse.
| Adults who… | Castle Hill | CA | U.S. | vs CA |
|---|---|---|---|---|
| Overall health | ||||
| Fair or poor health | 13.4%11.4–16.1 | 22.1% | 19.4% | Better |
| Frequent physical distress (physical health not good 14+ days a month) | 10.7%9.3–12.6 | 13.4% | 13% | Better |
| Frequent mental distress (mental health not good 14+ days a month) | 12.5%10.9–14.4 | 16.4% | 15.9% | Better |
| Conditions | ||||
| Obesity | 25.2%21.1–29.6 | 27.8% | 32.9% | About the same |
| Diabetes | 9.9%8.5–11.6 | 11.7% | 12% | Better |
| High blood pressure | 33.3%29.9–36.8 | 30.5% | 34.4% | About the same |
| High cholesterol (adults screened in 5 years) | 39.8%36.1–43.7 | 35.4% | 37.1% | Worse |
| Arthritis | 26.4%23.6–29.4 | 20.8% | 25.3% | Worse |
| Asthma | 9.3%8.2–10.4 | 9.3% | 9.9% | About the same |
| Cancer, other than skin cancer | 11%10–12.2 | 6.4% | 7.9% | Worse |
| Coronary heart disease | 6%5.3–6.9 | 5.6% | 6.4% | About the same |
| COPD | 4.5%3.6–5.6 | 5.1% | 6.3% | About the same |
| Stroke | 3%2.6–3.4 | 3.1% | 3.4% | About the same |
| Lost all teeth (ages 65+) | 5.5%4.4–6.9 | 10.6% | 12.3% | Better |
| Habits | ||||
| Smoke cigarettes | 6.8%5.2–8.7 | 10.9% | 11.8% | Better |
| No exercise outside work | 17.3%14.4–21.1 | 24.6% | 24.7% | Better |
| Binge drinking | 14.9%12.6–17.5 | 15.3% | 15.4% | About the same |
| Sleep under 7 hours | 31.5%27.2–36 | 35.1% | 36% | About the same |
| Checkups and coverage | ||||
| No health insurance (ages 18–64) | 3.4%2.6–4.3 | 10.6% | 11% | Better |
| Checkup in the past year | 77.3%74.1–80.3 | 71.9% | 77.4% | Better |
| Dentist visit in the past year | 74.9%72.1–77.6 | 62.8% | 63.2% | Better |
| Cholesterol check in 5 years | 92.4%91.1–93.5 | 85.4% | 87.1% | Better |
| Taking blood pressure medicine (adults with high blood pressure) | 76.8%73.2–79.9 | 71.3% | 76.5% | Better |
| Colorectal cancer screening (ages 45–75) | 68.6%64.2–72.9 | 57.5% | 65.5% | Better |
| Mammogram in 2 years (women 50–74) | 78.9%72.6–84.4 | 75.7% | 76.4% | About the same |
| Mind and connection | ||||
| Ever told they have depression | 19.2%16.7–22 | 20.1% | 20.6% | About the same |
| Feel lonely | 29.8%25.9–33.8 | 37.3% | 32.5% | Better |
| Lack social and emotional support | 19.3%16.4–22.5 | 28.6% | 23.6% | Better |
| Everyday needs | ||||
| Worried about having enough food | 5.8%4.4–7.5 | 17.9% | 15% | Better |
| Worried about keeping housing | 5.6%4.4–6.9 | 14.9% | 12% | Better |
| Threatened with a utility shut-off | 3.1%2.5–3.8 | 7.3% | 7.6% | Better |
| Lack reliable transportation | 4%3.3–4.8 | 9.3% | 7.9% | Better |
| Received SNAP (food stamps) | 4.9%3.6–6.5 | 15.6% | 11.6% | Lower |
| Disability | ||||
| Any disability | 23.5%20.4–27.5 | 30.4% | 30.1% | Lower |
| Difficulty walking or climbing stairs | 10.7%9–13 | 13.8% | 13.6% | Lower |
| Difficulty concentrating or remembering | 8.8%7.5–10.4 | 14.6% | 13.9% | Lower |
| Hearing difficulty | 6.4%5.7–7.4 | 5.9% | 6.7% | About the same |
| Vision difficulty | 3.1%2.7–3.6 | 5.6% | 5.4% | Lower |
| Difficulty doing errands alone | 5.3%4.5–6.3 | 8.1% | 7.9% | Lower |
| Difficulty dressing or bathing | 2.4%2.1–2.9 | 3.9% | 3.8% | Lower |
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 Castle Hill
Is Castle Hill a healthy place to live?
On seven CDC estimates for adults, Castle Hill is healthier than 96% of U.S. towns: A+ for health. These are modeled estimates of who lives there, not a measure of local care or habits alone.
What is the obesity rate in Castle Hill?
CDC estimates 25.2% of adults have obesity, likely between 21.1% and 29.6%, against 27.8% across California and 32.9% nationally.
What hospital is closest to Castle Hill?
Kaiser Foundation Hospital - Walnut Creek in Walnut Creek, 1.2 miles in a straight line from Castle Hill’s center point, is the nearest general hospital with an emergency room; Medicare rates it 3 of 5 stars.
How many people in Castle Hill have no health insurance?
CDC estimates 3.4% of adults ages 18–64 have no health insurance (likely 2.6–4.3%), 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 Castle Hill more than anything measured there. At the ends of CDC’s ranges the grade could be anywhere from A− to A+.
Neighbors talk health
Doctors taking patients, urgent care, staying active in Castle Hill.
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.