Cal Poly's on-campus student housing of 6,239 spaces[63] is the largest student housing program in the California State University system.[64] Cal Poly housed 35.9% of fall 2015 undergraduates in 28 dorms on campus, and 98.7% of first-time freshmen lived on campus. In addition, 28.7% of Cal Poly sophomores lived on campus in fall 2015.[3]