Knox has two water polo teams, one women's team and one that is co-ed. The Knox water polo team practices in Lay Natatorium pool on campus and competes in tournaments around the Midwest, in the Heartland Divison, and has competed against such schools as:
In the past, the Knox team has finished 10th at the American Collegiate Water Polo Association's national tournament. The team's coach is Jonathan Powers, assistant professor of economics, who is also a former college water polo competitor.
The water polo team at Knox helps students stay focused in both their extracurricular and academic lives and provides a fun, competitive outlet for those interested in the sport.