Looking on the internet deeply has found these results:

in the gym is the most popular phrase on the web.

at the gym 12,740,000 results on the web	in the gym 12,490,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
The 8 Worst People at the Gym. You might be one of these characters and not even know it. by Elroy Phillips. THE HARASSHOLE: We all go to a gym for�... Your Benefits at The Gym. NO CONTRACT; Full control of your membership; Included group fitness classes; Available Day Care. Steam Room, Hot Tub,�... At The Gym at City Creek, many of our members have experienced these life enhancing truths. A clean gym environment makes you more likely to use the gym�... A comic about people who stare at the gym. Comics: Random Most Popular All Cats Grammar Food Animals Tech. At the gym: who is looking at whom. P.S. this �...	He and his head barely fit in the gym. He and his head barely fit in the gym. Dropped down dead in the gym. Collapsed in the gym at the Central District this morning. Jimbo, gather all the students in the gym. Get the faculty toilet seats, and Dana needs bodies in the gym. I like the song they're playing in the gym. Jimmy, gather everyone in the gym.

at the gym

12,740,000 results on the web

in the gym

12,490,000,000 results on the web

More popular!

The 8 Worst People at the Gym. You might be one of these characters and not even know it. by Elroy Phillips. THE HARASSHOLE: We all go to a gym for�...
Your Benefits at The Gym. NO CONTRACT; Full control of your membership; Included group fitness classes; Available Day Care. Steam Room, Hot Tub,�...
At The Gym at City Creek, many of our members have experienced these life enhancing truths. A clean gym environment makes you more likely to use the gym�...
A comic about people who stare at the gym. Comics: Random Most Popular All Cats Grammar Food Animals Tech. At the gym: who is looking at whom. P.S. this �...