Health in O'Fallon, Missouri: official figures
3.9% of residents of O'Fallon (3,667 people) had no health insurance in 2020-2024, 107th lowest of 823 US cities of 50,000 or more (US: 8.4%; Missouri: 8.8%).
How many children in O'Fallon are uninsured?
In O'Fallon, 2.1% of children under 19 and 5.5% of adults aged 19 to 64 were uninsured in 2020-2024, against 0.4% of those 65 and over (US: 5.5%, 11.7% and 0.8%).
Source: U.S. Census Bureau · saved copyHow many people in O'Fallon are on Medicaid?
4.9% of residents of O'Fallon under 65 had Medicaid or other means-tested public coverage as their only health insurance in 2020-2024, 34th lowest of 823 US cities of 50,000 or more (US: 18.1%; Missouri: 14.1%).
Source: U.S. Census Bureau · saved copyHow many people in O'Fallon have a disability?
10.6% of residents of O'Fallon (9,868 people) reported a disability in 2020-2024, 247th lowest of 823 US cities of 50,000 or more (US: 13.3%; Missouri: 14.9%); 4.6% had two or more types of disability.
Source: U.S. Census Bureau · saved copyHow many older people in O'Fallon have a disability?
By age, 29.9% of residents of O'Fallon aged 65 and over, 8.5% of those aged 18 to 64 and 4.4% of children under 18 reported a disability in 2020-2024 (US: 32.9%, 10.9% and 4.9%).
Source: U.S. Census Bureau · saved copyWhat is the obesity rate in O'Fallon, Missouri?
An estimated 35.3% of adults in O'Fallon had obesity in 2023, joint 303rd highest of 810 US cities of 50,000 or more with an estimate (CDC PLACES model-based estimate for 2023, age-adjusted).
Source: Centers for Disease Control and Prevention · saved copyHow common is diabetes in O'Fallon?
An estimated 8.9% of adults in O'Fallon had been told by a doctor that they have diabetes, joint 182nd lowest of 810 US cities of 50,000 or more with an estimate (CDC PLACES model-based estimate for 2023, age-adjusted).
Source: Centers for Disease Control and Prevention · saved copyHow is mental health in O'Fallon?
An estimated 16.4% of adults in O'Fallon reported poor mental health on 14 or more of the past 30 days, joint 245th lowest of 810 US cities of 50,000 or more with an estimate, and 23.8% had ever been told they have depression (CDC PLACES model-based estimate for 2023, age-adjusted).
Source: Centers for Disease Control and Prevention · saved copyHow many adults in O'Fallon have high blood pressure?
In O'Fallon, an estimated 28.3% of adults had high blood pressure and 22.7% did no physical activity outside work, joint 320th lowest of 810 US cities of 50,000 or more with an estimate for physical inactivity (CDC PLACES model-based estimate for 2023, age-adjusted).
Source: Centers for Disease Control and Prevention · saved copyHow many adults in O'Fallon see a doctor for a check-up?
An estimated 76.2% of adults in O'Fallon had a routine check-up with a doctor in the past year, joint 308th highest of 810 US cities of 50,000 or more with an estimate (CDC PLACES model-based estimate for 2023, age-adjusted).
Source: Centers for Disease Control and Prevention · saved copyHow O'Fallon compares with other cities in the United States
Residents without health insurance (2020-2024)
O'Fallon ranks 717 of 823, highest first.
| Rank | City | Residents without health insurance |
|---|---|---|
| 714 | Burbank | 4.0% |
| 715 | Worcester | 3.9% |
| 716 | Rochester | 3.9% |
| 717 | O'Fallon | 3.9% |
| 718 | Laguna Niguel | 3.9% |
| 719 | Bowie | 3.9% |
| 720 | Madison | 3.9% |
Residents with a disability (2020-2024)
O'Fallon ranks 577 of 823, highest first.
| Rank | City | Residents with a disability |
|---|---|---|
| 574 | Layton | 10.6% |
| 575 | Daly City | 10.6% |
| 576 | West Valley City | 10.6% |
| 577 | O'Fallon | 10.6% |
| 578 | Pflugerville | 10.5% |
| 579 | Denver | 10.5% |
| 580 | Oxnard | 10.5% |
Adults with obesity (age-adjusted model estimate) (2023)
O'Fallon ranks 304 of 810, highest first.
| Rank | City | Adults with obesity (age-adjusted model estimate) |
|---|---|---|
| 301 | Dearborn Heights | 35.4% |
| 302 | Colton | 35.4% |
| 303 | Eugene | 35.3% |
| 304 | O'Fallon | 35.3% |
| 305 | Pawtucket | 35.3% |
| 306 | Summerville | 35.3% |
| 307 | San Antonio | 35.2% |
Adults with diagnosed diabetes (age-adjusted model estimate) (2023)
O'Fallon ranks 620 of 810, highest first.
| Rank | City | Adults with diagnosed diabetes (age-adjusted model estimate) |
|---|---|---|
| 617 | Goodyear | 8.9% |
| 618 | Temecula | 8.9% |
| 619 | Burbank | 8.9% |
| 620 | O'Fallon | 8.9% |
| 621 | Danbury | 8.9% |
| 622 | Lake Forest | 8.9% |
| 623 | Noblesville | 8.9% |
Adults who smoke cigarettes (age-adjusted model estimate) (2023)
O'Fallon ranks 402 of 810, highest first.
| Rank | City | Adults who smoke cigarettes (age-adjusted model estimate) |
|---|---|---|
| 399 | El Paso | 12.6% |
| 400 | Aurora | 12.6% |
| 401 | Hialeah | 12.6% |
| 402 | O'Fallon | 12.6% |
| 403 | Asheville | 12.6% |
| 404 | Burleson | 12.6% |
| 405 | West Sacramento | 12.6% |
Adults with 14+ poor mental health days a month (age-adjusted model estimate) (2023)
O'Fallon ranks 557 of 810, highest first.
| Rank | City | Adults with 14+ poor mental health days a month (age-adjusted model estimate) |
|---|---|---|
| 554 | New Braunfels | 16.4% |
| 555 | Davie | 16.4% |
| 556 | Chino | 16.4% |
| 557 | O'Fallon | 16.4% |
| 558 | Danbury | 16.4% |
| 559 | South Jordan | 16.4% |
| 560 | Bloomington | 16.4% |
More on O'Fallon: overview · economy and jobs · education and schools · poverty and living standards · government budget · all cities in the United States
Sources
- U.S. Census Bureau: American Community Survey 2020-2024 5-year estimates, table C18108: Age by Number of Disabilities (Summary File rows for the US, the states and the listed cities, copied unchanged from the full file, sha256 8116247db31952c99ba053e6b0c767675a9674703b6b32e7705f1e4952f3b426), read 23 October 2026 · saved copy (SHA-256 b8f09efa878c…)
- U.S. Census Bureau: American Community Survey 2020-2024 5-year estimates, table B27010: Types of Health Insurance Coverage by Age (Summary File rows for the US, the states and the listed cities, copied unchanged from the full file, sha256 2ceba99dada3ec1042310e1dc1f00bcc819de765c3143028aa000df025012a69), read 23 October 2026 · saved copy (SHA-256 3db662ef4cb3…)
- Centers for Disease Control and Prevention: PLACES: Place Data (GIS Friendly Format), 2025 release: model-based age-adjusted prevalence among adults, for every place (data.cdc.gov API, columns used), read 23 October 2026 · saved copy (SHA-256 b2174bcc660f…)
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