College of Western Idaho is a public community college in Southwest Idaho with its primary campus locations in Boise and Nampa. CWI also offers classes at several community locations throughout the Treasure Valley. It is one of four comprehensive community colleges along with the College of Eastern Idaho, College of Southern Idaho and North Idah…College of Western Idaho is a public community college in Southwest Idaho with its primary campus locations in Boise and Nampa. CWI also offers classes at several community locations throughout the Treasure Valley. It is one of four comprehensive community colleges along with the College of Eastern Idaho, College of Southern Idaho and North Idaho College, in Idaho and is governed by a five-member board of trustees elected at large by voters in Ada and Canyon counties.