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24-Hour Gyms in Denver, CO

22 of the 59 gyms we list in Denver have 24-hour access.

A "24 hours" badge on a map listing doesn't say whether that means a staffed front desk around the clock or just keyfob access after the trainers go home — a difference you only discover at the door. Every 24-hour gym listed here has that access confirmed from the gym's own posted hours or membership page.

  1. LoHi Athletic Club

    2010 W 30th Ave, Denver, CO 80211

    Sauna or steam24-hour accessGroup classes
    Call Website Directions

  2. 24 Hour Fitness

    720 S Colorado Blvd, Denver, CO 80246

    Sauna or steam24-hour accessGroup classes
    Call Website Directions

  3. Platform Strength

    3198 Blake St, Denver, CO 80205

    Sauna or steam24-hour accessGroup classes
    Call Website Directions

  4. 24 Hour Fitness

    4600 West 38th Avenue, Denver, CO 80212

    Sauna or steam24-hour accessGroup classes
    Call Website Directions

  5. 24 Hour Fitness

    4120 E. Alameda Avenue, Denver, CO 80246

    Sauna or steam24-hour accessGroup classes
    Call Website Directions

  6. Club Form Denver

    1125 17th St, Denver, CO 80202

    24-hour accessGroup classes
    Call Website Directions

  7. 24 Hour Fitness

    7400 E Hampden Ave, Denver, CO 80231

    24-hour access
    Call Website Directions

  8. Anytime Fitness

    9165 E Northfield Blvd, Denver, CO 80238

    24-hour access
    Call Website Directions

  9. Anytime Fitness

    1244 E Colfax Ave, Denver, CO 80218-2253

    24-hour access
    Call Website Directions

  10. Anytime Fitness

    6005 E Colfax Ave, Denver, CO 80220-1510

    24-hour access
    Call Website Directions

  11. CrossFit LoDo

    3821 Steele St, Denver, CO 80205-3600

    24-hour access
    Call Website Directions

  12. Muscle + Mindset

    110 Yuma St, Denver, CO 80223

    24-hour access
    Call Website Directions

  13. Anytime Fitness

    3698 W 44th Ave, Denver, CO 80211-1376

    24-hour access
    Call Website Directions

  14. CrossFit LoDo

    2363 Blake St, Denver, CO 80205

    24-hour access
    Call Website Directions

  15. 24 Hour Fitness

    4120 E Alameda Ave, Denver, CO 80246

    24-hour access
    Call Website Directions

  16. 24 Hour Fitness

    7600 E Academy Blvd, Denver, CO 80230

    24-hour access
    Call Website Directions

  17. Denver Wrestling Academy

    4200 Madison St, Denver, CO 80216

    24-hour access
    Call Website Directions

  18. 24 Hour Fitness

    2770 S Colorado Blvd, Denver, CO 80222

    24-hour access
    Call Website Directions

  19. 24 Hour Fitness

    8351 E Belleview Ave, Denver, CO 80237

    24-hour access
    Call Website Directions

  20. Anytime Fitness

    1350 S Colorado Blvd, Denver, CO 80222

    24-hour access
    Call Website Directions

  21. Snap Fitness

    5058 E Hampden Ave, Denver, CO 80222

    24-hour access
    Call Website Directions

  22. Anytime Fitness Denver

    749 Niagara St, Denver, CO 80220-5511

    24-hour access
    Call Directions
Get your keyfob or access code set up during staffed hours. Most 24-hour gyms only issue fobs or door codes at the front desk during normal business hours, so signing up at 11 p.m. usually means waiting until morning to actually get in.

Also in Denver

More in Denver and Colorado

24-Hour Gyms near Denver

Good to know

Are there gyms open 24 hours near me?

Yes — many regional and national chains keep at least one location per metro area open around the clock, usually with keyfob entry after staffed hours end. Independent gyms less commonly offer true 24/7 access since it requires either overnight staff or a secure unstaffed entry system.

Is a 24-hour gym staffed all night?

Usually not. Most 24-hour gyms have staff on-site during peak hours — mornings, evenings, weekends — and switch to unstaffed keyfob-only access overnight, with cameras and emergency call buttons standing in for a front desk.