Photo: Robert Lawton · CC BY-SA 2.5On CDC estimates, O'Fallon is healthier than 88% of U.S. towns
O'Fallon beats Illinois on 14 of 32 measures CDC estimates, and trails on none.
Modeled estimates for adults 18+, CDC’s own estimate for O'Fallon. How CDC estimates town health
What stands out about health in O'Fallon
Fewer O'Fallon adults struggle to make ends meet
Worries about food, housing, utility bills and getting around all run below Illinois. 1 in 10 adults worry about having enough food, vs 1 in 6 adults statewide. Everyday needs ↓
O'Fallon has a top-rated hospital
HSHS St. Elizabeth's Hospital is rated 4 of 5 stars by Medicare and has an emergency room. Getting care ↓
O'Fallon is an active town
Only 18.4% of adults get no exercise outside work, vs 23% across Illinois. Habits ↓
Nearly everyone in O'Fallon is insured
Only 5.4% of adults 18–64 have no health insurance, vs 9.9% across Illinois. 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 Illinois figure falls outside O'Fallon’s likely range; at the ends of CDC’s ranges the grade could be anywhere from B+ to A+.
What’s behind O'Fallon’s grade
On seven CDC estimates for adults, O'Fallon is healthier than 88% of U.S. towns, #144 of 767 in Illinois. All seven estimates beat the typical U.S. town. The strongest is physical distress (fewer adults with frequent physical distress than 92% of towns); the weakest is obesity, still better than 65%.
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). O'Fallon’s median household income is $105,982; among the 7,740 U.S. towns within 25% of that ($79K–$132K), it’s healthier than 85%, about where its income would put it.
Making ends meet
Needs that shape health as much as any doctor visit: food, housing, utilities and a way to get around.
9.1% of O'Fallon adults receive SNAP (food stamps), compared with 13.8% across Illinois.
Care in and near O'Fallon
1 hospital and 1 community health center in O'Fallon, plus the nearest just outside it.
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 O'Fallon; ≈ 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).
Everyday habits, side by side with Illinois
Share of adults, with the Illinois figure marked.
3.6 miles of trails across 9 parks and preserves
Keeping up with care
Share of O'Fallon adults getting routine care. The full ring is 100%; the dark tick marks Illinois.
Out of every 100 O'Fallon adults…
O'Fallon runs below IL on 4 of 12 conditions. Tap one to see it as people.
How O'Fallon adults are doing
About the same as Illinois on each measure.
1 in 3 O'Fallon 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.
O'Fallon and the towns around it
O'Fallon has the best Health Grade of the 9 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 |
|---|---|---|---|---|---|
| O'Fallon | A | 34.1% | 9.7% | 10.4% | CDC place |
| Shiloh | A− | 35% | 10.1% | 11.1% | CDC place |
| Fairview Heights | B− | 38.6% | 13.6% | 14.4% | CDC place |
| O'Fallon Township | A | 33.2% | 9.8% | 10.5% | ZIP codes |
| Scott AFB | A | 32.5% | 4.6% | 10.1% | CDC place |
| Caseyville Township | B | 36.7% | 12% | 13.2% | ZIP codes |
| Shiloh Valley Township | A− | 35.8% | 9.9% | 12.1% | ZIP codes |
| Swansea | B+ | 35.6% | 12% | 11.5% | CDC place |
Same-state neighbors only, ordered by length of shared border.
Living with a disability
Shown without a better/worse judgment.
of O'Fallon adults live with a disability (Illinois 27.6%). Thinking or memory is the most common.
Every CDC estimate for O'Fallon
Share of adults, 40 measures, with CDC’s likely range.
On the 32 measures below that have a better and a worse direction, O'Fallon is better than Illinois on 14 and worse on 0; on the rest, the Illinois figure falls inside O'Fallon’s likely range, so we call them about the same. Disability and SNAP are described, not compared as better or worse.
| Adults who… | O'Fallon | IL | U.S. | vs IL |
|---|---|---|---|---|
| Overall health | ||||
| Fair or poor health | 14%12.1–16 | 18.6% | 19.4% | Better |
| Frequent physical distress (physical health not good 14+ days a month) | 10.6%9.3–12 | 12.2% | 13% | Better |
| Frequent mental distress (mental health not good 14+ days a month) | 15.2%13.4–17.1 | 15.6% | 15.9% | About the same |
| Conditions | ||||
| Obesity | 34.1%27.4–40.9 | 34% | 32.9% | About the same |
| Diabetes | 9.7%8.4–11.2 | 11.7% | 12% | Better |
| High blood pressure | 32.6%28.7–36.6 | 33% | 34.4% | About the same |
| High cholesterol (adults screened in 5 years) | 34.5%30.2–38.7 | 35.4% | 37.1% | About the same |
| Arthritis | 24.5%21.5–27.7 | 24.2% | 25.3% | About the same |
| Asthma | 10.4%9.1–11.7 | 9.9% | 9.9% | About the same |
| Cancer, other than skin cancer | 7.8%7–8.5 | 7.6% | 7.9% | About the same |
| Coronary heart disease | 4.9%4.3–5.4 | 5.9% | 6.4% | Better |
| COPD | 5%4.4–5.7 | 6.3% | 6.3% | Better |
| Stroke | 2.7%2.5–2.9 | 3.3% | 3.4% | Better |
| Lost all teeth (ages 65+) | 8.8%7.1–10.9 | 10.3% | 12.3% | About the same |
| Habits | ||||
| Smoke cigarettes | 10.4%8.8–12.1 | 12.1% | 11.8% | About the same |
| No exercise outside work | 18.4%15.2–22 | 23% | 24.7% | Better |
| Binge drinking | 19.6%16.2–23.2 | 17.8% | 15.4% | About the same |
| Sleep under 7 hours | 35.1%29.3–41.5 | 35.4% | 36% | About the same |
| Checkups and coverage | ||||
| No health insurance (ages 18–64) | 5.4%4.6–6.4 | 9.9% | 11% | Better |
| Checkup in the past year | 79.3%75.6–82.5 | 77.8% | 77.4% | About the same |
| Dentist visit in the past year | 69.4%66–72.6 | 63.4% | 63.2% | Better |
| Cholesterol check in 5 years | 89%87.4–90.4 | 87.4% | 87.1% | About the same |
| Taking blood pressure medicine (adults with high blood pressure) | 75.5%72.2–78.5 | 75.7% | 76.5% | About the same |
| Colorectal cancer screening (ages 45–75) | 68.1%63.2–72.8 | 60.2% | 65.5% | Better |
| Mammogram in 2 years (women 50–74) | 77.3%70–83.8 | 73.5% | 76.4% | About the same |
| Mind and connection | ||||
| Ever told they have depression | 20.8%17.5–24.3 | 19.8% | 20.6% | About the same |
| Feel lonely | 31.6%26.9–36.6 | 33.5% | 32.5% | About the same |
| Lack social and emotional support | 23.3%20–26.9 | 25.4% | 23.6% | About the same |
| Everyday needs | ||||
| Worried about having enough food | 10.1%8.6–11.7 | 15.9% | 15% | Better |
| Worried about keeping housing | 9.5%8.2–11 | 13.2% | 12% | Better |
| Threatened with a utility shut-off | 6.2%5.3–7.1 | 7.8% | 7.6% | Better |
| Lack reliable transportation | 5.9%5.2–6.7 | 8% | 7.9% | Better |
| Received SNAP (food stamps) | 9.1%7.7–10.5 | 13.8% | 11.6% | Lower |
| Disability | ||||
| Any disability | 23.4%20.1–27 | 27.6% | 30.1% | Lower |
| Difficulty walking or climbing stairs | 10.2%8.8–11.6 | 12.8% | 13.6% | Lower |
| Difficulty concentrating or remembering | 10.6%9.3–12.1 | 12.6% | 13.9% | Lower |
| Hearing difficulty | 5.2%4.6–5.8 | 6.2% | 6.7% | Lower |
| Vision difficulty | 3.4%3.1–3.7 | 4.8% | 5.4% | Lower |
| Difficulty doing errands alone | 6.1%5.4–6.8 | 7.6% | 7.9% | Lower |
| Difficulty dressing or bathing | 2.7%2.4–2.9 | 3.5% | 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 Illinois figure falls inside that range.
Questions about health in O'Fallon
Is O'Fallon a healthy place to live?
On seven CDC estimates for adults, O'Fallon is healthier than 88% of U.S. towns: A for health, #144 of 767 in Illinois. Among U.S. towns with similar household incomes it’s healthier than 85%. These are modeled estimates of who lives there, not a measure of local care or habits alone.
What is the obesity rate in O'Fallon?
CDC estimates 34.1% of adults have obesity, likely between 27.4% and 40.9%, against 34% across Illinois and 32.9% nationally.
What hospital is closest to O'Fallon?
HSHS St. Elizabeth's Hospital in O Fallon, 1.5 miles in a straight line from O'Fallon’s center point, is the nearest general hospital with an emergency room; Medicare rates it 4 of 5 stars.
How many people in O'Fallon have no health insurance?
CDC estimates 5.4% of adults ages 18–64 have no health insurance (likely 4.6–6.4%), against 9.9% across Illinois.
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 O'Fallon more than anything measured there. At the ends of CDC’s ranges the grade could be anywhere from B+ to A+.
Neighbors talk health
Doctors taking patients, urgent care, staying active in O'Fallon.
Health estimates: CDC PLACES: Local Data for Better Health, 2025 release. The Illinois 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.