Clark played college football for the University of Iowa. Clark played for the Hawkeyes from 1999 through 2002. Clark was a first-team All-Big Ten selection, a first-team All-American, a John Mackey Award winner (2002, is given to the best tight end in college football. He won the Kenny Yana Award at the end of the 2002 season as well, as he helped lead Iowa to the Big Ten title and 11-2 record.