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Gyms in O'Fallon, MO

10 gyms in and around O'Fallon, Missouri — call ahead about childcare hours — many clubs staff the kids room only in the morning and early evening, and the hours change with the school year.

O'Fallon has about 95,355 residents, which works out to 10 gyms per 100,000 people. Population: U.S. Census Bureau, 2024 estimate.

Gyms in O'Fallon

The most complete and owner-verified listings first — hours, phone, website, services. No pay-to-play.

  1. Club Fitness

    2947 State Highway K, O'Fallon, MO 63366

    Childcare / kids clubSauna or steam24-hour accessGroup classes
    Call Website Directions

  2. Project Power Gym

    1300 Rustique Square, O'Fallon, MO 63368

    Childcare / kids clubSauna or steam24-hour access
    Call Website Directions

  3. Snap Fitness

    1084 Tom Ginnever Ave, O'Fallon, MO 63366

    24-hour accessNo contract
    Call Website Directions

  4. Club Fitness

    225 Ofallon Plz, O'Fallon, MO 63366

    Childcare / kids clubGroup classes
    Call Website Directions

  5. YMCA

    250 Fallon Pkwy, O'Fallon, MO 63368-7325

    Childcare / kids clubSwimming pool
    Call Website Directions

  6. Powerbody USA Fitness

    403 Sonderen St, O'Fallon, MO 63366-2630

    24-hour access
    Call Website Directions

  7. The Strength Parlor

    2315 Technology Dr, O'Fallon, MO 63368-7370

    24-hour access
    Call Website Directions

  8. CrossFit O'Fallon

    64 N Central Dr, O'Fallon, MO 63366-2336

    No contract
    Call Website Directions

  9. Anytime Fitness

    1240 Bryan Rd, O'Fallon, MO 63366

    24-hour access
    Call Website Directions

  10. Snap Fitness

    979 Waterbury Falls Dr, O'Fallon, MO 63368

    24-hour access
    Call Website Directions
10gyms
10per 100,000 residents
10with a phone
10with a website

Of the 10 gyms listed in O'Fallon, 10 give a phone number and 10 have a website. The nearest bigger selection is St Louis with 42.

Gyms in O'Fallon by feature

O'Fallon 10 gyms

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Good to know about gyms in O'Fallon

How many gyms are there in O'Fallon?

We list 10 gyms in O'Fallon with addresses, and 10 of them with a phone number.

What's the surest way to check hours in O'Fallon?

Call ahead — 10 of the 10 gyms here list a number. Hours at independent gyms shift with seasons and staffing, so a phone call beats any listing, including ours.

Is anything open 24 hours in O'Fallon?

7 of 10 run around the clock.

How much does a fitness trainer cost?

A fitness trainer typically costs between $40 and $100 per hour depending on location and experience. In O'Fallon, Missouri, you can explore 10 options (10 with direct phone numbers) on GymFinderAtlas to compare local rates. Working with a certified professional ensures proper form and steady progress.