Mt. San Antonio College is a public community college in Walnut, California. It offers more than 400 degree and certificate programs, 36 support programs, and more than 50 student clubs and athletic programs, including food pantry, counseling and tutoring. The college offers associate degrees, career education, community recreation courses, ESL, adult education, and youth summer programs.

Walnut is a city in the eastern part of Los Angeles County in the U.S. state of California. According to the 2010 census, the city had a population of 29,172, and the population was estimated to be 29,685 in 2019.