Gyms & fitness in Diamond Bar, CA
27 gyms & fitness listed in Diamond Bar, California. 26 with a phone number and 25 with a website.
Diamond Bar accounts for 0% of the gyms & fitness listed in California and ranks #233 among California cities for gyms & fitness.
Sponsored
Quick answer
Diamond Bar, CA has 27 gyms & fitness listed on USA Business Search. 26 list a phone number and 25 list a website. The most listings are in ZIP codes 91765, 91789.
Updated October 2026Exploring GLP-1 weight loss? Elevation Health is a dietitian-led telehealth program with clinician review. Free assessment, no obligation.Take the assessment
Premier Swim Academy
LA Fitness
VIP Billiards
Diamond Bar Community Center
Fitness Advantage
AquaRx
Ashley Vierra Fitness
California Skate Grand Terrace
Club Pilates
Crunch Fitness - Diamond Bar
Curl Fitness - Diamond Bar
Deane Homes Swim Club
Diamond Bar City Center Recreation Services
Diamond Bar Fit Body Boot Camp
Diamond Bar High School Track And Tennis Courts
F45 Training
F45 Training Diamond Bar
Fitness 100
Futureproof Wellness
Sponsored
Kim's Power Fitness
Koyano Weightlifting
Lvfit And Fitness Training Center, Llc
MVP NFL Flag Diamond Bar
Planet Fitness
Premier Pools and Spas Diamond Bar
YMCA of Pomona Valley
How to choose a gym in Diamond Bar
- Ask for a free trial or day pass before you sign.
- Read the cancellation terms before you join.
- Visit at the time you plan to work out to see how busy it gets.
Medical weight loss and GLP-1 care in Diamond Bar: what to ask
- GLP-1 medicines such as semaglutide and tirzepatide are prescription-only. A licensed prescriber should review your health history and any labs.
- Ask whether the medication is an FDA-approved brand or a compounded version, and which pharmacy fills it.
- Ask for the full monthly cost in writing: visits, medication, shipping and follow-up.
- Ask how side effects are monitored and how often you will check in with a clinician or dietitian.
See the medical weight loss guide for providers by state.
Common questions
How many gyms & fitness are listed in Diamond Bar, California?
USA Business Search shows 27 gyms & fitness in Diamond Bar. 26 list a phone number and 25 list a website.
Which ZIP codes do these listings cover?
They include ZIP codes 91765, 91789.
How do I choose a gym in Diamond Bar?
Ask for a free trial or day pass before you sign. Read the cancellation terms before you join.
How do gyms & fitness in Diamond Bar compare with the rest of California?
Diamond Bar has 0% of the 23,875 gyms & fitness listed in California, which ranks #233 among California cities for this category.
How do I add or fix a listing?
Listings are free. Use Add your business, or the Claim or fix link on any listing.
Do I need a prescription for GLP-1 weight loss in Diamond Bar?
Yes. Semaglutide and tirzepatide are prescription medications, and a licensed provider decides whether they are appropriate for you. Telehealth programs such as Elevation Health (featured) review your intake from home.
More fitness & recreation in Diamond Bar
Gyms & fitness nearby
Own one of these businesses? Claim your free listing or see what an optimized listing adds.