Welcome to the ONLY Results-Oriented Boise Gym!

Grow as an athlete at the best fitness gym Boise has to offer.

Welcome to Jack City Fitness: Boise, Idaho’s #1 Spot for Health and Sport 

Can’t decide between Boise gyms? We’ll make it easy for you. Jack City Fitness is the area’s only RESULTS-ORIENTED gym—and we have everything athletes need to crush all their goals. That’s why we are one of the most famous gyms in Idaho. But don’t take our word for it. Come see for yourself! Call (208) 999-1111 to schedule a FREE InBody consultation and tour of our Boise fitness center. If you decide to sign up to become a JFC Partner, you can access all of our amenities right away. These include 24/7 access, custom workout plans, and the most exciting fitness classes Boise has to offer.

What safety and cleanliness measures are in place at gyms in Boise, Idaho?

Looking for clean and safe health clubs? Boise, Idaho, is home to many—but nothing beats Jack City. As a small, local business, we take extra pride and care in ensuring the safety of all our beloved Partners. That means keeping our site sparkling clean and only employing the most qualified fitness coaches in Boise. Excellence is our standard, and we work hard to maintain that level. After all, our Partners deserve only the best.

Is there on-site parking available at Jack City Fitness in Boise?

Yes, there is! Unlike some other gyms in Boise, Jack City Fitness has a private car lot for Partners. That gives you plenty of space to park your car (or bike!)—even during busier hours. Just one more reason we have been consistently rated the best gym in Boise—and all of Idaho! 

As Seen On

Why “No Memberships”?

All local gyms offer stone age memberships, but Jack City Fitness isn’t just any old health club. We’ve heard way too many tales of people signing up for a gym membership, getting off track, and abandoning their fitness routine altogether — while still paying a monthly gym bill. That makes us extremely sad — especially because some gyms actually bank on this happening. Beyond Gross. At our Fitness Facility, we strive to create positive and nourishing relationships with everybody who walks through our doors, not swindle people with cheap gym memberships. That’s why we scrapped the idea of memberships altogether and created a proprietary high quality custom service called a Partnership™. When you join our Jack City Family, we become Partners in health & fitness because after all, we’re in this together. We plan to be there when the going gets tough (no contracts or hidden fees), when you feel like quitting (custom build Partnerships™), or when you’ve lost motivation (full time Accountability Coach at your aid). Our Partners constantly get check in’s to make sure goals are being met, nutrition is on point, and measurements are being taken. We’ve got your back.

Find your ideal workout

We're here to help you succeed

  • Whether you prefer the privacy of an online program, love hitting the treadmills with your gym buddy, or thrive when you’re lifting solo, it’s all possible at the best of Boise gyms — Jack City Fitness. We offer 24/7 gym access, so it’s there whenever you need to get your heart pumping. We understand our lives are all different, which means our schedules and commitments are too. We want to be a place that's convenient to you no matter what time your "gym time" happens. This is why we allow private partners to access our facility before and after regular office hours by simply using their fingerprint to enter the facility.
  • Some athletes perform best in a group setting — does that include you? Group training is perfect for those who feed off others’ energy and support. There will always be an experienced coach to guide and encourage you along the way. So hop on over and try a fitness class, Boise athlete style.  
  • Plenty of athletes find that they flourish under the one-on-one attention of a knowledgeable coach — and you may be one of them! Improve your fitness and establish a solid foundation in a private and supportive environment with one of our passionate trainers.  

boise’s only results oriented fitness facility

24/7 Gym and Fitness Classes: Boise, Idaho

When it comes to gyms in Boise, there’s only one that offers EVERYTHING an athlete needs to succeed: Jack City Fitness. At our results-driven fitness center, every inch of our facility has been designed to support athletes as they smash their goals.  At Jack City Fitness, Boise athletes can enjoy:
  • 24/7 Gym Access
No need to wake up early just to hit the gym before work—at Jack City, we’re open to Partners all night long.
  • Elite-Level Athletic Coaching
When you learn from the best, there’s nowhere to go but up—and our certified trainers are true pros.
  • Dedicated Nutritional Counseling and Support
Want to better understand your relationship with food? Our nutritional counselors can help it happen in a healthy and safe manner. 
  • Team and Group Coaching Sessions
Bring the whole team around for unforgettable group training sessions!
  • Customizable Training Options
We work with you to ensure that your workout routine suits your individual needs and circumstances—develop a customized training plan with our team!
  • Heart-Pumping Classes
School is in session every day at Jack City, where our incredible classes always have something exciting to offer. 
  • World-Class Equipment and Facilities
From Woodway treadmills to AirBikes, we always have the newest athletic equipment for our athletes to utilize. 
  • A Tight-Knit Athletic Community
Our Partners and coaches are a family—and we’d love for you to join the fun. But don’t just take our word for it. Call (208) 999-1111 today for a FREE tour and InBody fitness consultation at our Boise fitness center. And when you decide to become an official Jack City Partner, you’ll have immediate access to all of our amenities. 

Work With a Certified Trainer at Jack City Fitness

Why do athletes choose us over other gyms in Idaho? For lots of our members, it boils down to our incredible fleet of fitness coaches and personal trainers. The team at Jack City Fitness is highly experienced, professional, and focused on helping athletes see big results.  Each of our coaches has a dedicated skillset and background, from functional fitness to rehabilitative movement. Depending on your own goals, needs, and history, you’ll be able to select one who suits your unique fitness journey.

Build Your Own Custom Workout Plan

Our custom workout plans have made us famous amongst health clubs in Boise, Idaho! Your body and lifestyle are unique—and at Jack City Fitness, we always recognize that. That’s why we developed our custom workout program! You can work with one of our coaches to create a personalized fitness regime that checks everything on your list. Whether you prefer to train remotely through video chat, work toward a specific event, or focus on a targeted skill, your fitness coach will deliver a personalized plan for your unique needs.

Diet and Nutrition Counseling

Looking for fitness gyms in Boise that also focus on nutrition? Don’t know your macros from micros? Jack City has everything you need to understand the links between athletics and nutrition—develop a meal plan with our nutritional counselors today! We believe that a solid understanding of food science and nutrition is crucial to being a good athlete, meeting physical goals, and living a healthy lifestyle. That’s why we offer our Partners sessions with our in-house nutritional counselors. They’ll help you develop a personalized nutritional plan that suits your needs. Your nutritional counselor will also help you understand why it’s important to consume certain food groups (like protein) in tandem with exercise—and how to do so in exciting and delicious ways. 

Find YOUR Fitness Flow

We’re no big box gym—and we don’t expect our athletes to fit into one. That’s why we scrapped the idea of being a “member.” We don’t like exclusivity, and we don’t gatekeep athletics. If you want to be here, you’re one of us. That’s why we use the term “Partner” for our athletes—we look at you as a part of our team, not a customer. We want to make YOUR goals work, not the other way around.  If you’re ready for a gym experience that sees you as the unique athlete that you are, call (208) 999-1111. We’ll have you to our Boise gym whenever you’re ready to check it out—and we think you’ll like what you see. Find out for yourself today!Read More

Choosing Gyms and Fitness Classes

Boise athletes, we know that it’s a big choice to partner up with a gym, especially in a big city. After all, you’ve likely seen dozens of gyms in Boise, and they all claim to be the best. How can you sort out the best of the bunch? It’s helpful to consider a few questions.

  • What Are Your Fitness Goals? Your ideal fitness center will have amenities, services, and equipment that match your goals. If you want to become an elite speed skater, you’re gonna want to make sure your gym has a rink. If you want to create more powerful muscles, your ideal gym will have plenty of weights and trained coaches. 
  • What Does Your Ideal Gym Offer? What do you imagine when you think about a great workout? Do you envision group training sessions? Heart-pumping classes? A dedicated nutritional counseling program? There are enough gyms in Boise for you to find exactly what you need…and we think we might know where you’ll land. 
  • What Have Been Your Most Successful Fitness Experiences? 

Did you thrive doing home workouts during lockdown? Find a gym that offers the option of remote training sessions. Had an amazing experience doing midnight lift sessions back in college? Join a 24-hour gym! 

How Do YOU Work Out?

No matter what your ideal workout may be, we can offer it at Jack City Fitness! Love the thrill of group classes? Come join us any day of the week—we’re always offering something new and exciting. In fact, we’re known across town for our specialty classes, like the spiritually-focused Faith & Fitness, the senior-only Legacy Strong, and our famous Ladies HIIT Squad.  All about those one-on-one training sessions? We’ve got you. Our coaches will support and guide you through personalized workouts, providing both accountability and the chance to gain both confidence and muscle in a way that works for your needs and goals.  More of a lone wolf? If your AirPods and a chilled-out fitness space is all you need, you’ll find your happy place right here at our Boise gym. Our members can come and train whenever they want, even at three o’clock in the morning!

Exciting Equipment at Your Fingertips

At Jack City, we see countless athletes every day. That’s why we ensure our equipment is regularly maintained. We’re also always adding new equipment to our facility—we like to keep up with the latest fitness trends. Wondering if we’re getting any new machines in, or how we handle our maintenance process? Ask away! 

What Makes Us Different From Other Gyms in Boise?

At Jack City Fitness, our priority is YOU.  We work hard to make sure all our athletes have the support they need to meet all their goals, whether that means designing a custom workout plan, working around unique schedules, or offering unending support and accountability to every person who walks through our doors. These athletes who grow and work with us are never considered “members”—what are we, some exclusive club? No way. At our Boise gym, athletes who sign up to train with us are thought of as equals. That’s why we call them Partners.

As a Partner, your needs take top priority. No two athletes have the same path, but everyone will receive the same outstanding support from our team. We keep our doors open 24 hours a day, 7 days a week, because it’s important to us that our space is convenient for you, no matter when your ideal “gym time” may be. Our Partners have full facility access before and after typical office hours, and with our fingerprint scanner “keys,” you can rest assured that the space is kept secure all night.


  • Do I have to be fit to fit in at Jack City Fitness?

    Of course not — movement is for everybody! At Jack City, we have no time for snobbery. We work with everyone, from a workout newbie to athletic champs. It doesn’t matter if you’re trying to build muscle, train your hardest, shed extra weight, improve your nutrition, or if you just want to try working with a personal trainer — if it’s about physical fitness, it’s possible at Jack City. We’ll work with you, at your pace, allowing you to blossom into the best athletic version of yourself.

  • What training philosophy does Jack City Fitness use?

    If you were to take two identical twins and have them both train at Jack City with different coaches, they would be on completely different roads but they’d still end up with the same results. There are some principles of safety and specificity that always apply, but with our veteran coaches, there is no wrong way to train as long there is an openness and commitment to learning.

  • Do you have any referral benefits or package deals for families, etc.?

    Hey, like we said: we think of our clients as partners — and we love helping our people. That extends to our people’s people as well, so bring your friends and family over to see us. You’ll all be rewarded as a thank you for making our Jack City Family bigger and better!

  • Do you have a pool or sauna?

    Not yet — but if you’re looking for a similar workout to swimming laps you can find it with our total body, zero impact, rowers and versa climbers. Based on research, the caloric and metabolic effects from these two machines is greater than that of swimming. So if you’re wondering how to lose fat, increase mobility, and gain muscle, you can jump into our facility and get it all!

Are you ready to


  • Fitness Consultation


    • Know real personalized data with on our InBody machine to see a visual representation of your current body composition & fitness level.

    • Receive a Personalized Fitness Routine from a multi-certified Fitness Counselor based on your specific goals & needs.

    • Tour the facility to learn more about some of our exclusive amenities, newest fitness technology, & even try out one of our unusual cardio machines or recovery devices.

  • Movement Assessment


    • Get the personalized attention you deserve with a 1-on-1 training session and experienced coach.

    • Know which movement pattern is hindering your ability with a professional 5 movement analysis and correction assessment.

    • Let our expert coach build a personalized plan to maximize results for your fitness goals.