🏋️ Official Rankings

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

We compared 10 gyms serving Saint Peters and Saint Charles County, Missouri, and ranked the top providers by verified reviews, ratings, and local reputation — 743 customer reviews in all.

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

Gyms ranked: 10
Average rating: 4.9★
Reviews analyzed: 743
Area codes: 636, 314

Freedom Fitness Cottleville

⭐ 5.0 · 159 reviews

5991 Mid Rivers Mall Dr, St Peters, MO 63304

Visit Website →+1636-536-4500

Dudas Fitness

⭐ 5.0 · 77 reviews

3963 Old Hwy 94 S, St Peters, MO 63304

Visit Website →+1636-294-6844

HOTWORX - St Peters, MO

⭐ 4.9 · 138 reviews

7112 Mexico Rd, St Peters, MO 63376

Visit Website →+1636-534-9679

St. Peters CrossFit - Gym, Personal Training, Weightlifting, & Nutrition

⭐ 4.9 · 84 reviews

929 Jungermann Rd, St Peters, MO 63376

Visit Website →+1636-278-9834

BLUSH Boot Camp

⭐ 4.9 · 82 reviews

7517 Mexico Rd, St Peters, MO 63376

Visit Website →+1636-427-1171

9Round Kickboxing Fitness

⭐ 4.9 · 62 reviews

16 Plaza 94, St Peters, MO 63376

Visit Website →+1636-244-3219

Fit City Gym - Cottleville

⭐ 4.8 · 52 reviews

6035 Mid Rivers Mall Dr, St Peters, MO 63304

Visit Website →+1636-263-9699

Spectrum Fitness

⭐ 5.0 · 18 reviews

2001 Trade Center Dr, St Peters, MO 63376

Visit Website →+1636-875-4343

Olympia Gymnastics - Mid Rivers

⭐ 4.7 · 57 reviews

248 Mid Rivers Center, St Peters, MO 63376

Visit Website →+1636-970-1800

#10

Trainology Fitness Systems

⭐ 5.0 · 14 reviews

5252 Mexico Rd, St Peters, MO 63376

Visit Website →+1636-339-3573

Gyms listed here serve Saint Peters, Saint Charles County, and nearby ZIP codes including 63376.