🏋️ Official Rankings
10 Best Gyms in Watertown, MA (September 2026)
We compared 10 gyms serving Watertown and Middlesex County, Massachusetts, and ranked the top providers by verified reviews, ratings, and local reputation — 1,289 customer reviews in all.
The 10 listed below hold an average rating of 4.9 out of 5, led by Arsenal Performance- Health.Strength.Community. Updated for September 2026.
- Gyms ranked
- 10
- Average rating
- 4.9★
- Reviews analyzed
- 1,289
- Area codes
- 617, 781
⭐ 5.0 · 177 reviews
49 Clarendon St, Watertown, MA 02472
⭐ 5.0 · 126 reviews
222 Arsenal St, Watertown, MA 02472
⭐ 5.0 · 73 reviews
100 Parker St, Watertown, MA 02472
⭐ 4.9 · 146 reviews
150 Arsenal St, Watertown, MA 02472
⭐ 5.0 · 35 reviews
57 Mt Auburn St, Watertown, MA 02472
⭐ 5.0 · 24 reviews
25 Clarendon St, Watertown, MA 02472
⭐ 4.7 · 370 reviews
74 Acton St, Watertown, MA 02472
Gyms listed here serve Watertown, Middlesex County, and nearby ZIP codes including 02172, 02272, 02277, 02471, 02472, 02477.