Contra Costa Community College District is a public community college district in Contra Costa County, California. It was established in 1948 and serves over 50,000 students annually across its three colleges: Contra Costa College, Diablo Valley College, and Los Medanos College. The district offers a variety of associate degree and certificate programs and is accredited by the Accrediting Commission for Community and Junior Colleges. Contra Costa Community College District is known for its strong transfer programs and its commitment to sustainability.