Gyms in Thornton
The most complete and owner-verified listings first — hours, phone, website, services. No pay-to-play.
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VASA Fitness
1420 E 104th Ave, Thornton, CO 80233-4306
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Gold's Gym Thornton
550 Thornton Pkwy, Thornton, CO 80229-2100
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24 Hour Fitness
10001 Grant St, Thornton, CO 80229
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Bally Total Fitness
10001 Grant St #101, Thornton, CO 80229
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24 Hour Fitness
3750 E 120th Ave, Thornton, CO 80233-1656
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Chuze Fitness
650 E 102nd Ave, Thornton, CO 80229-2022
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Adams County YMCA
1500 E 128th Ave, Thornton, CO 80241-2601
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Orangetheory Fitness
4243 E 136th Ave, Thornton, CO 80602-6916
Of the 8 gyms listed in Thornton, 8 give a phone number and 8 have a website. The nearest bigger selection is Westminster with 12.
Gyms in Thornton by feature
- Gyms with Group Classes5
- Gyms with Transparent Membership Plans5
- Gyms with a Sauna4
- 24-Hour Gyms4
- Gyms Offering Flexible Membership Plans4
- 24-Hour Gyms with Round-the-Clock Access4
- Gyms with a Pool3
- Gyms with Childcare3
- No-Contract Gyms3
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
- Northglenn2
- Westminster12
- Broomfield5
- Commerce City3
- Arvada12
- Lafayette7
- Denver59
- Colorado Springs38
Good to know about gyms in Thornton
How many gyms are there in Thornton?
We list 8 gyms in Thornton with addresses, and 8 of them with a phone number.
What's the surest way to check hours in Thornton?
Call ahead — 8 of the 8 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 Thornton?
4 of 8 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 Thornton, Colorado, you can explore 8 options (8 with direct phone numbers) on GymFinderAtlas to compare local rates. Working with a certified professional ensures proper form and steady progress.