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Welcome to The Big C Athletic Club, the premier fitness club in Concord and home to over 30 years of experience and expertise, where we make you feel at home!

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  • “A great club with dedicated staff, convenient location, good for the body and soul!”

  • “The no pressure, great classes, and family-like atmosphere!”

  • “Thank you, Big C family, for a fantastic Zumba class this morning. I am so happy to be part of this amazing family environment that this gym offers.”

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  • Kathy L. Martinez, CA

    I recently joined this club. I have been in many clubs but this is by far my favorite. The atmosphere is mature, and laid back. The club is clean and well worth the price. I wish they were open on Saturday nights and until 6:00 on Sundays-only reason...

  • Rick C. Austin, TX

    I recently had back surgery and was looking for a gym to help rehab my back. I thought I would have been okay with one of the big chain gyms but after visiting with the staff at Big C and touring the facility I am so glad that I made the investment a...

  • A C. Lafayette, CA

    I love this gym! I come to this gym at least 4-5 days a week! I would have given five stars but sometimes the girls at the front desk around 5 or so can be a little sassy and rude! Otherwise i love this place!

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About Us

The Big C Athletic Club

Phone (925) 671-2110
Hours Mon, Tue, Wed, Thu, Fri: 5:30 am - 10:00 pm
Sat: 7:00 am - 6:00 pm
Sun: 8:00 am - 2:00 pm