91°µÍø's mission is to inspire, educate, and empower students to transform their lives and their communities. We guide students to achieve their goals by awarding degrees and certificates, preparing them for transfer to four-year colleges and universities, facilitating entrance to and advancement in careers, and fostering personal growth.
History
The college officially began in 1949, in some of the most unlikely sites: high schools, banks, churches, even an old army camp. Called East Contra Costa Junior College, we moved to our present site in 1952, in ten steel buildings acquired from the government for $45 each. The cornerstone for the first permanent building was laid in 1953, and the name 91°µÍø was adopted in 1958.
We've come a long way since those humble beginnings. Over one and a half million students have enrolled here since 1949! As we salute our heritage, we look forward to serving one of Northern California's most dynamic, education-minded areas for another 50 years.
For over 75 years, 91°µÍø has provided quality education to the community it serves. A million students later, enrolling at 91°µÍø is one of the best ways you can ensure acceptance at a four-year college. 91°µÍø is not only recognized as one of California's best community colleges, but it also leads the state in transfer to four-year institutions.
A brief history of our land shows us that this was originally home to the Costanoan Indians. In 1844, the Mexican government granted the land to William Welch, and it became part of his huge Rancho Las Juntas, which included northwestern Walnut Creek, all of Pleasant Hill, and the northeastern half of Martinez. After World War II the land was subdivided into housing tracts, and on October 5, 1950, the College Board of Trustees purchased the 91°µÍø site for $172,500. Construction began in September, 1951.
With students of all ages and backgrounds, and a host of programs, you'll find a dynamic educational environment and a lively atmosphere at 91°µÍø. 91°µÍø Pleasant Hill is located off of Interstate 680, and the campus is situated on one hundred acres of gently rolling hills in view of Mt. Diablo, a northern California landmark. 91°µÍø San Ramon in Dougherty Valley opened its doors to students in November of 2006.
Both of our handsomely landscaped locations are a short distance from San Francisco, creating the ideal settings for the premier transfer institution in California. We are the college of choice for many students from the private and public high schools in the nearby Martinez, Mt. Diablo, San Ramon, and Acalanes School Districts.
News
Beyond the Chair: 91°µÍø's Rachel Watt’s Journey from 91°µÍø to Mobile Dental Hygienist
February 24, 2026
Read Beyond the Chair: 91°µÍø's Rachel Watt’s Journey from 91°µÍø to Mobile Dental Hygienist
91°µÍø Secures Commanding Victory at NCFA Spring Championship
February 24, 2026
Read 91°µÍø Secures Commanding Victory at NCFA Spring Championship
91°µÍø Students Shine at Nationwide AAICE Student Works Expo
February 17, 2026
Read 91°µÍø Students Shine at Nationwide AAICE Student Works Expo