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24-Hour Gyms with Round-the-Clock Access in Colorado

95 of the 457 gyms we track in Colorado have 24/7 member access. Full listings for every city are on the Colorado page.

95gyms
51cities
457gyms statewide

This section features fitness clubs and gyms offering round-the-clock access for members. These locations allow you to train at any hour using a key card, key fob, or mobile entry system. Before visiting, note that staffing levels and amenity availability often vary outside regular operational hours.

Denver 9

  1. LoHi Athletic Club

    2010 W 30th Ave, Denver, CO 80211

    Sauna or steam24-hour accessGroup classes
    Call Website All Denver

  2. 24 Hour Fitness

    720 S Colorado Blvd, Denver, CO 80246

    Sauna or steam24-hour accessGroup classes
    Call Website All Denver

  3. 24 Hour Fitness

    4600 West 38th Avenue, Denver, CO 80212

    Sauna or steam24-hour accessGroup classes
    Call Website All Denver

  4. 24 Hour Fitness

    4120 E. Alameda Avenue, Denver, CO 80246

    Sauna or steam24-hour accessGroup classes
    Call Website All Denver

  5. Club Form Denver

    1125 17th St, Denver, CO 80202

    24-hour accessGroup classes
    Call Website All Denver

  6. Project 13 Gyms-Denver

    1135 N Broadway, Denver, CO 80203-2123

    No contractGroup classes
    Call Website All Denver

  7. EGYM Fitness Denver

    1920 17th St, Denver, CO 80202-6401

    No contract
    Call Website All Denver

  8. CrossFit LoDo

    3821 Steele St, Denver, CO 80205-3600

    24-hour access
    Call Website All Denver

  9. CrossFit LoDo

    2363 Blake St, Denver, CO 80205

    24-hour access
    Call Website All Denver

Aurora 5

  1. 24 Hour Fitness

    512 South Chambers Road, Aurora, CO 80017

    Mon-Sun 5am-11pm

    Sauna or steam24-hour accessGroup classes
    Call Website All Aurora

  2. 24 Hour Fitness

    1450 S Abilene St, Aurora, CO 80012, Aurora, CO 80012

    Sauna or steam24-hour accessGroup classes
    Call Website All Aurora

  3. PASE Factor - Aurora

    15900 E Briarwood Cir, Aurora, CO 80016-1564

    Sauna or steam24-hour accessGroup classes
    Call Website All Aurora

  4. 24 Hour Fitness

    15900 E. Briarwood Circle, Aurora, CO 80016

    Sauna or steam24-hour accessGroup classes
    Call Website All Aurora

  5. Powerhouse Gym Aurora

    15270 E Hampden Ave, Aurora, CO 80014-3908

    Call Website All Aurora

Colorado Springs 5

  1. Accolade Fitness

    4390 Arrowswest Dr, Colorado Springs, CO 80907

    24-hour accessNo contractGroup classes
    Call Website All Colorado Springs

  2. Accolade Fitness South

    1785 S 8th St, Colorado Springs, CO 80905

    24-hour accessNo contractGroup classes
    Call Website All Colorado Springs

  3. Colorado Iron Gym

    3506 N El Paso St, Colorado Springs, CO 80907-5423

    Sauna or steamNo contract
    Call Website All Colorado Springs

  4. Colorado Springs CrossFit Pick It Up

    11641 Ridgeline Dr, Colorado Springs, CO 80921-3940

    24-hour access
    Call Website All Colorado Springs

  5. AlphaGainz LLC

    2031 B St, Colorado Springs, CO 80906

    24-hour access
    Call Website All Colorado Springs

Lakewood 4

  1. 24 Hour Fitness

    360 S Teller St, Lakewood, CO 80226

    Sauna or steam24-hour accessGroup classes
    Call Website All Lakewood

  2. 24 Hour Fitness

    12039 W. Alameda Parkway, Lakewood, CO 80228

    Sauna or steam24-hour accessGroup classes
    Call Website All Lakewood

  3. High Road Gym

    835 Wadsworth Blvd, Lakewood, CO 80214-4500

    24-hour accessNo contract
    Call Website All Lakewood

  4. Absolute Personal Fitness

    12364 W Alameda Pkwy, Lakewood, CO 80228-2845

    24-hour accessNo contract
    Call Website All Lakewood

Pueblo 4

  1. Snap Fitness Pueblo West

    279 S Purcell Blvd, Pueblo, CO 81007

    Sauna or steam24-hour accessGroup classes
    Call Website All Pueblo

  2. Supernova Fitness Center

    346 S Orchard Springs Dr, Pueblo, CO 81007

    24-hour accessGroup classes
    Call Website All Pueblo

  3. Midtown steel fitness

    1000 W 6th St, Pueblo, CO 81003

    24-hour accessNo contract
    Call Website All Pueblo

  4. The Beach Fitness Club

    521 Chinook Ln, Pueblo, CO 81001

    24-hour access
    Call Website All Pueblo

Thornton 4

  1. Gold's Gym Thornton

    550 Thornton Pkwy, Thornton, CO 80229-2100

    24-hour accessNo contractGroup classes
    Call Website All Thornton

  2. 24 Hour Fitness

    10001 Grant St, Thornton, CO 80229

    Sauna or steam24-hour accessGroup classes
    Call Website All Thornton

  3. Bally Total Fitness

    10001 Grant St #101, Thornton, CO 80229

    Sauna or steam24-hour accessGroup classes
    Call Website All Thornton

  4. 24 Hour Fitness

    3750 E 120th Ave, Thornton, CO 80233-1656

    Sauna or steam24-hour accessGroup classes
    Call Website All Thornton

Arvada 3

  1. Commit2Fitness

    6510 Wadsworth Blvd, Arvada, CO 80003

    24-hour accessNo contract
    Call Website All Arvada

  2. CrossFit Arvada

    14700 W 66th Pl, Arvada, CO 80004-1066

    Childcare / kids clubNo contract
    Call Website All Arvada

  3. 24 Hour Fitness

    12680 West 64th Avenue, Arvada, CO 80004

    24-hour access
    Call Website All Arvada

Boulder 3

  1. 24 Hour Fitness

    2900 Iris Avenue, Boulder, CO 80301

    Sauna or steam24-hour accessGroup classes
    Call Website All Boulder

  2. Boulder Athletics

    3240 Pearl St, Boulder, CO 80301-2418

    24-hour accessNo contract
    Call Website All Boulder

  3. Gym Number Five

    6420 Gunpark Dr, Boulder, CO 80301-3328

    Call Website All Boulder

Castle Rock 3

  1. 24 Hour Fitness

    5745 New Abbey Lane, Castle Rock, CO 80108

    Mon-Thu 5am-10pm, Fri 5am-9pm, Sat-Sun 6am-8pm

    Sauna or steam24-hour accessGroup classes
    Call Website All Castle Rock

  2. Aesthetix Gym

    1010 I-25, Castle Rock, CO 80104

    24-hour access
    Call Website All Castle Rock

  3. Balance Fitness

    809 Park St, Castle Rock, CO 80109-1560

    Call Website All Castle Rock

Fort Collins 3

  1. 24 Hour Fitness

    2208 E. Harmony Road, Fort Collins, CO 80528

    Sauna or steam24-hour accessGroup classes
    Call Website All Fort Collins

  2. Kerley's Fitness

    2925 S College Ave, Fort Collins, CO 80525

    24-hour accessGroup classes
    Call Website All Fort Collins

  3. Koko Fitclub Harmony

    3027 E Harmony Rd, Fort Collins, CO 80528

    Call Website All Fort Collins

Littleton 3

  1. PASE Factor - Highlands Ranch

    6830 E County Line Rd, Littleton, CO 80126-3906

    Sauna or steam24-hour accessGroup classes
    Call Website All Littleton

  2. Snap Fitness Roxborough

    8351 N Rampart Range Rd, Littleton, CO 80125

    24-hour accessGroup classes
    Call Website All Littleton

  3. Snap Fitness Littleton

    5935 S Zang St, Littleton, CO 80127-4644

    24-hour accessGroup classes
    Call Website All Littleton

Centennial 2

  1. Junkyard Training, Education and Recovery Center

    14697 E Easter Ave, Centennial, CO 80112

    Group classes
    Call Website All Centennial

  2. Rutledge Performance

    14697 E Easter Ave, Centennial, CO 80112-4207

    Group classes
    Call Website All Centennial

Cortez 2

  1. Mountain Range Fitness

    2310 E Empire St, Cortez, CO 81321

    24-hour access
    Call Website All Cortez

  2. 24hr Power House

    2232 E Main St, Cortez, CO 81321

    24-hour access
    Call Website All Cortez

Durango 2

  1. Fit 247 Gym

    381 S Camino Del Rio, Durango, CO 81303

    Group classes
    Call Website All Durango

  2. Illete Fitness

    659 Tech Center Dr, Durango, CO 81301-7618

    24-hour access
    Call Website All Durango

Frederick 2

  1. Dark Horse Fitness

    4250 Salazar Way, Frederick, CO 80504-3450

    Mon-Sun open 24h, Office Mon 8am-5pm

    24-hour accessNo contract
    Call Website All Frederick

  2. Fortress Strength Gym

    7800 Miller Dr, Frederick, CO 80504-3448

    24-hour access
    Website All Frederick

Greeley 2

  1. TR Fitness

    3005 W 29th St, Greeley, CO 80631

    24-hour accessNo contract
    Call Website All Greeley

  2. Brothers Gym and Supplements

    2547 11th Ave, Greeley, CO 80631

    24-hour access
    Call Website All Greeley

Lafayette 2

  1. 24 Hour Fitness

    851 US Highway 287, Lafayette, CO 80026

    Mon-Thu 5am-10pm, Fri 5am-8pm, Sat-Sun 8am-8pm

    Swimming poolSauna or steam24-hour access
    Call Website All Lafayette

  2. 24 Hour Fitness

    851 N. Highway 287, Lafayette, CO 80026

    Sauna or steam24-hour accessGroup classes
    Call Website All Lafayette

Longmont 2

  1. Gold's Gym

    1240 S Hover Rd, Longmont, CO 80501-7902

    24-hour access
    Call Website All Longmont

  2. Gold's Gym

    1240 Hover St, Longmont, CO 80501

    24-hour access
    Call Website All Longmont

Pagosa Springs 2

  1. Momentum 24/7 Fitness

    450 Lewis St, Pagosa Springs, CO 81147

    Call Website All Pagosa Springs

  2. Momentum 24/7 Fitness

    40 N 15th St, Pagosa Springs, CO 81147

    Call Website All Pagosa Springs

Rifle 2

  1. Rocky Mountain Fit

    1862 Enterprise Ct, Rifle, CO 81650-8574

    24-hour accessGroup classes
    Call All Rifle

  2. Rocky Mountain Muscle

    1862 Enterprise Ct, Rifle, CO 81650-8574

    24-hour accessGroup classes
    Call All Rifle

Bayfield 1

  1. Momentum 24/7 Fitness

    428 Wolverine Dr, Bayfield, CO 81122

    Call Website

Breckenridge 1

  1. CrossFit Breckenridge

    1805 Airport Rd, Breckenridge, CO 80424

    24-hour access
    Call Website All Breckenridge

Burlington 1

  1. Schaal Therapy Center

    334 S 13th St, Burlington, CO 80807-2414

    24-hour accessGroup classes
    Call Website

Cañon City 1

  1. First Choice Fitness

    1530 Elm Ave, Cañon City, CO 81212

    Sauna or steam24-hour access
    Call Website

Commerce City 1

  1. Snap Fitness Reunion

    18240 E 104th Ave, Commerce City, CO 80022

    24-hour accessNo contract
    Call Website All Commerce City

Dacono 1

  1. Corso Fitness

    730 Glen Creighton Dr, Dacono, CO 80514

    24-hour accessNo contract
    Call Website

Eagle 1

  1. Legacy Athletic Club (24 hr Gym)

    50 Chambers Ave, Eagle, CO 81631

    Call Website

Edwards 1

  1. Dogma Athletica

    137 Main St, Edwards, CO 81632-8118

    24-hour accessGroup classes
    Call Website

Erie 1

  1. Fitness 1440

    651 Mitchell Way, Erie, CO 80516-5436

    Open 24 hours

    Sauna or steam24-hour accessGroup classes
    Call Website

Golden 1

  1. Genesee Mountain Fitness

    25938 Genesee Trail Rd, Golden, CO 80401

    No contractGroup classes
    Call Website All Golden

Granby 1

  1. Mountain Beast MMA and Fitness

    62713 US Highway 40, Granby, CO 80446

    Call Website

Grand Junction 1

  1. Pura Vida CFitness

    573 S Commercial Dr, Grand Junction, CO 81505-6908

    24-hour access
    Call Website All Grand Junction

Gunnison 1

  1. Peak fitness

    821 N Main St, Gunnison, CO 81230

    Childcare / kids clubSwimming pool24-hour accessGroup classes
    Call Website

Highlands Ranch 1

  1. 24 Hour Fitness

    6830 E. County Line Rd., Highlands Ranch, CO 80126

    Sauna or steam24-hour accessGroup classes
    Call Website All Highlands Ranch

Louisville 1

  1. Peak Fitness For You

    551 E South Boulder Rd, Louisville, CO 80027

    Childcare / kids clubSwimming pool24-hour accessGroup classes
    Call Website All Louisville

Loveland 1

  1. Loveland Athletic Club

    1000 S Lincoln Ave, Loveland, CO 80537-6338

    Sauna or steam
    Call Website All Loveland

Mancos 1

  1. Momentum 24/7 Fitness

    200 Hwy 160 E Frontage Rd, Mancos, CO 81328

    Call Website All Mancos

Monte Vista 1

  1. Monte Vista Athletic Club

    2360 Sherman Ave, Monte Vista, CO 81144

    24-hour accessGroup classes
    Call Website

New Castle 1

  1. Be Fitness Revolution

    820 Castle Valley Blvd, New Castle, CO 81647

    24-hour access
    Call Website

Olathe 1

  1. Jungle Gym LLC

    404 N 4th St, Olathe, CO 81425

    24-hour access
    Call Website

Parker 1

  1. 24 Hour Fitness

    11445 Twenty Mile Rd, Parker, CO 80134

    Sauna or steam24-hour accessGroup classes
    Call Website All Parker

Peyton 1

  1. Breaking Barriers Fitness, LLC.

    11950 Tourmaline Dr, Peyton, CO 80831

    Childcare / kids club24-hour access
    Call Website All Peyton

Ridgway 1

  1. Cora Fitness

    171 N Cora St, Ridgway, CO 81432

    Call Website

Salida 1

  1. Kim's Gym

    148 Old Stage Rd, Salida, CO 81201

    24-hour accessGroup classes
    Call Website All Salida

Silver Cliff 1

  1. Altitude Community Fitness

    50 Main St, Silver Cliff, CO 81252-8306

    Mon-Fri 7am-6pm, Sat 10am-1pm

    Sauna or steamGroup classes
    Call Website

Trinidad 1

  1. Snap Fitness Trinidad

    2202 Freedom Rd, Trinidad, CO 81082

    24-hour accessNo contract
    Call Website All Trinidad

Wellington 1

  1. Fitness1

    8017 S 1st St, Wellington, CO 80549

    24-hour access
    Call Website All Wellington

Westminster 1

  1. Lyft24 Westminster

    8895 Westminster Blvd W, Westminster, CO 80031-2866

    Call Website All Westminster

Wheat Ridge 1

  1. Alpine CrossFit

    12090 W 50th Ave, Wheat Ridge, CO 80033

    24-hour accessNo contract
    Call Website All Wheat Ridge

Windsor 1

  1. Pursuit Training & Performance Gym

    7850 S County Road 5, Windsor, CO 80528-9351

    Childcare / kids clubSauna or steam24-hour access
    Call Website All Windsor

Woodland Park 1

  1. Woodland Fitness Center

    950 Tamarac Pkwy, Woodland Park, CO 80863

    Childcare / kids club24-hour access
    Call Website All Woodland Park
Staffing notice: Overnight hours are typically unstaffed, requiring dedicated member key fobs or mobile app passes for door access.

Also in Colorado

Good to know

How do I access a 24-hour gym during overnight hours?

Members enter using a dedicated key fob, RFID card, or mobile app barcode at a secure perimeter reader. Guest entry and non-member access are strictly restricted during unstaffed overnight hours.

Are all gym amenities available 24 hours a day?

Main cardio and weight equipment remain accessible 24/7, but full-service amenities like pools, saunas, day care centers, and smoothie bars usually close overnight. Check individual club schedules for exact amenity cutoff times.

How much does a 24-hour gym membership cost?

Standard monthly dues range from $15 to $60 depending on the brand and location. Most chains also charge a one-time key fob fee of $10 to $30 upon enrollment, alongside a recurring annual facility fee of $39 to $49.

How much does a personal trainer cost?

Personal training sessions generally range from $50 to $120 per hour across Colorado. Rates depend on session duration, trainer credentials, and package options. You can browse 95 local fitness centers on GymFinderAtlas to find qualified trainers near you.

How long to train for marathon?

Training for a marathon typically takes 16 to 20 weeks for runners with a consistent baseline fitness level. The process involves gradually building weekly mileage, completing regular long runs, and prioritizing recovery. If you want structured guidance, search GymFinderAtlas to connect with experienced running coaches.