Local directory · Waltham, MA

Gyms & Fitness in Waltham, MA

Written & reviewed by Founder, SEO Local · 22 years in SEO · Updated October 2026 · LinkedIn

Get this there are 347 gyms in Middlesex County, MA, according to the US Census (County Business Patterns). I was looking at a map and found six of them listed by name from OpenStreetMap. Two have phone numbers; three actually link to websites. They're all free listings? And any owner can claim their page on the hashtag.org network.

Gyms & Fitness directory · Waltham

Data: © OpenStreetMap contributors

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Local news · Gyms & Fitness · Waltham

Gyms & Fitness in Waltham — FAQ

How many gyms are in Waltham, MA?
There are a bunch of gyms around - the Census says 347 in Middlesex County, Massachusetts! This directory actually maps 6 of them specifically. Just so you have that info.
How many of these gyms list contact details?
Of the 6 gyms mapped here, 2 list a phone number and 3 link a website.
Is this Waltham gyms & fitness directory free?
Yes. Every listing is built from free public data — US Census County Business Patterns and OpenStreetMap — and any business can claim its page on the hashtag.org network at no cost.

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