🏋️ Official Rankings
10 Best Gyms in Waterbury, CT (August 2026)
We compared 10 gyms serving Waterbury and Naugatuck Valley Planning Region County, Connecticut, and ranked the top providers by verified reviews, ratings, and local reputation — 1,378 customer reviews in all.
The 10 listed below hold an average rating of 4.7 out of 5, led by Simply Fit Junkies. Updated for August 2026.
- Gyms ranked
- 10
- Average rating
- 4.7★
- Reviews analyzed
- 1,378
- Area codes
- 203, 860
Simply Fit Junkies
⭐ 5.0 · 86 reviews
1650 Watertown Ave Suite 10A, Waterbury, CT 06708
Gym Store Fitness Supply
⭐ 4.9 · 72 reviews
987 Woodtick Rd, Waterbury, CT 06705
Universal Fitness
⭐ 4.8 · 118 reviews
595 Straits Turnpike, Watertown, CT 06795
Powerhouse Gym Middlebury
⭐ 4.7 · 562 reviews
930 Straits Turnpike, Middlebury, CT 06762
PowerFlex Gym of Waterbury LLC
⭐ 4.7 · 42 reviews
1806 E Main St, Waterbury, CT 06705
North End Recreation Center
⭐ 4.5 · 94 reviews
268 N Main St, Waterbury, CT 06702
Gyms listed here serve Waterbury, Naugatuck Valley Planning Region County, and nearby ZIP codes including 06701, 06702, 06703, 06704, 06705, 06706, 06708, 06710, 06720, 06721, 06722, 06723 and more.