Cowles Fieldhouse is located inside of the Cowles Center, a multipurpose athletic and physical education facility. The Fieldhouse has served as home to Simpson volleyball and basketball teams since the late 70s, with the basketball teams beginning competition in 1976 followed by volleyball in 1977. The Simpson wrestling team also competes in the Fieldhouse.
The area was expanded in 1998 in order to hold a 160-meter indoor track. The facility is capable of seating up to 3,000 fans and introduced a brand-new hardwood floor in 2012 and a large, LED video board display in 2013.