Top 10 gyms in Boulder
Ranked by how complete and owner-verified the listing info is — hours, phone, website, services. No pay-to-play.
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1BLAST
1821 30th St, Boulder, CO 80301-1074
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2Colorado Athletic Club Flatirons
505 Thunderbird Dr, Boulder, CO 80303
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3Boulder YMCA
2850 Mapleton Ave, Boulder, CO 80301-1122
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424 Hour Fitness
2900 Iris Avenue, Boulder, CO 80301
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5Kondition
3161 Walnut St, Boulder, CO 80301-2511
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6Lagroove
1657 28th St, Boulder, CO 80301
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7ONE Boulder Fitness
1800 Broadway St, Boulder, CO 80302
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8Boulder Athletics
3240 Pearl St, Boulder, CO 80301-2418
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9Body Balance Strength & Wellness
2747 Iris Ave, Boulder, CO 80304-2433
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10Life Time
1821 30th St, Boulder, CO 80301-1074
Of the 19 gyms listed in Boulder, 18 give a phone number and 16 have a website. The nearest bigger selection is Denver with 59.
Gyms in Boulder by feature
- Gyms with Group Classes8
- Gyms with a Sauna7
- No-Contract Gyms6
- Gyms with a Pool5
- 24-Hour Gyms5
- Gyms Offering Flexible Membership Plans4
- Gyms with Childcare3
- 24-Hour Gyms with Round-the-Clock Access3
All 9 other gyms in Boulder
Same order: the most complete listings first.
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Orangetheory Fitness
1850 29th St, Boulder, CO 80301-1063
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Anytime Fitness
4800 Baseline Rd, Boulder, CO 80303
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Anytime Fitness
6565 Gunpark Dr E, Boulder, CO 80301-3348
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B Fit
2408 Arapahoe Avenue, Boulder, CO 80302
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Orangetheory Fitness
649A S Broadway, Boulder, CO 80303
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Mountains' Edge Fitness
2907 55th St, Boulder, CO 80301-2874
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Black Lab Sports
3550 Frontier Ave Ste D, Boulder, CO 80301-2430
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Gym Number Five
6420 Gunpark Dr, Boulder, CO 80301-3328
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Verdant Apartment Homes - Gym
Boulder, CO 80303
Guides for gym shoppers
All guides
OwningBeginner Gym Workout Guide: Simple Routines and Step-by-Step Plans
Learn how to build a balanced training schedule, master foundational movements safely, and establish a sustainable gym habit from your very first session.
MoneyEquinox Membership Cost Breakdown and Pricing Guide
This guide breaks down typical monthly dues, access tiers, and hidden fees to help you decide if luxury gym pricing fits your lifestyle and budget.
MoneyPlanet Fitness Membership Pricing and Day Pass Guide
Get a clear breakdown of base rates, Black Card upgrades, day pass fees, and annual club charges before signing up.
Colorado statewide, by feature
- 24-Hour Gyms in Colorado198
- Gyms with Group Classes in Colorado144
- No-Contract Gyms in Colorado128
- Gyms with a Sauna in Colorado123
- Gyms Offering Flexible Membership Plans in Colorado123
- Gyms with Childcare in Colorado102
- Gyms with a Pool in Colorado98
- Gyms with Transparent Membership Plans in Colorado98
- 24-Hour Gyms with Round-the-Clock Access in Colorado95
- Gyms with Group Fitness Classes in Colorado45
- Orangetheory Fitness Studios and Group Classes in Colorado24
- Gyms and Fitness Clubs with Red Light Therapy in Colorado14
Nearby in Colorado
Good to know about gyms in Boulder
How many gyms are there in Boulder?
We list 19 gyms in Boulder with addresses, and 18 of them with a phone number.
What's the surest way to check hours in Boulder?
Call ahead — 18 of the 19 gyms here list a number. Hours at independent gyms shift with seasons and staffing, so a phone call beats any listing, including ours.
Is anything open 24 hours in Boulder?
5 of 19 run around the clock.
How much does a fitness trainer cost?
A fitness trainer typically costs between $40 and $100 per hour depending on location and experience. In Boulder, Colorado, you can explore 19 options (18 with direct phone numbers) on GymFinderAtlas to compare local rates. Working with a certified professional ensures proper form and steady progress.