Williams is on a 450-acre (1. 8 km2) campus in Williamstown, in the Berkshires in rural northwestern Massachusetts. The campus contains more than 100 academic, athletic, and residential buildings. There are 349 voting faculty members, with a student-to-faculty ratio of 7:1. As of 2018[update], the school has an enrollment of 2,073 undergraduate students and 54 graduate students. The college competes in the NCAA Division III New England Small College Athletic Conference, and competes in the conference as the Ephs. The athletic program has been highly successful, as Williams College has won 22 of the last 24 College Directors' Cups for NCAA Division III.