Marin Academy (familiarly known as MA) is a private college preparatory high school in San Rafael, California. Located on the campus that for decades housed the prior to its closure, Marin Academy was founded in 1971 with 118 faculty members and a student body of 449.Marin Academy is one of the most competitive private high schools in the Bay Area. In the 2015–2016 school year, Marin Academy accepted only one in four students who applied. The cost of attendance at Marin Academy for the 2021-22 school year is $53,086.