Colony High School.

About Colony High School

Colony High School is a high school located in Ontario, California, and is part of the Chaffey Joint Union High School District. The school serves the communities of southern Ontario, including the new Ontario Ranch community and portions of eastern Rancho Cucamonga and southeast Fontana. The school earned the 2018 Civic Learning Award for the State of California and was a 2018 Silver Medal winner for the U.S. News & World Report ranking of Best High Schools. Over 60 percent of the Colony High School Class of 2017 met the University of California A-G requirement rate, nearly 14 percent above the state average.