🏋️ Official Rankings

10 Best Gyms in Saint Charles, MO (August 2026)

We compared 10 gyms serving Saint Charles and Saint Charles County, Missouri, and ranked the top providers by verified reviews, ratings, and local reputation — 1,063 customer reviews in all.

The 10 listed below hold an average rating of 4.9 out of 5, led by barre3. Updated for August 2026.

Gyms ranked: 10
Average rating: 4.9★
Reviews analyzed: 1,063
Area codes: 636, 314

barre3

⭐ 5.0 · 230 reviews

333 1st Capitol Dr, St Charles, MO 63301

Visit Website →+1636-688-7340

F45 Training Northwest St. Charles

⭐ 5.0 · 75 reviews

3731 Elm St, St Charles, MO 63301

Visit Website →+1314-583-8376

Burn Boot Camp

⭐ 4.9 · 133 reviews

1588 Country Club Plaza Dr, St Charles, MO 63303

Visit Website →+1314-529-0949

YogaSix St Charles

⭐ 4.9 · 82 reviews

1450 Beale St Unit 140, St Charles, MO 63303

Visit Website →+1636-410-8498

Jane's House of Well Being

⭐ 5.0 · 44 reviews

1112 1st Capitol Dr, St Charles, MO 63301

Visit Website →+1636-255-9642

Climb So iLL at the Steel Shop

⭐ 4.8 · 293 reviews

650 N Main Center Ste 105, St Charles, MO 63301

Visit Website →+1636-493-1675

Emerge Fitness Training

⭐ 4.9 · 66 reviews

920 Hemsath Rd #100, St Charles, MO 63303

Visit Website →+1636-500-1093

Unleashed Fitness

⭐ 4.9 · 58 reviews

516 S 5th St, St Charles, MO 63301

Visit Website →+1636-259-4987

Coefficient CrossFit

⭐ 5.0 · 34 reviews

1735 S River Rd Ste 180, St Charles, MO 63303

Visit Website →+1636-255-8255

#10

Mov on Main

⭐ 4.8 · 48 reviews

334 N Main St, St Charles, MO 63301

Visit Website →+1636-206-6057

Gyms listed here serve Saint Charles, Saint Charles County, and nearby ZIP codes including 63301, 63302, 63303, 63304.