While the student-led organization formed in California, MEChA became a national organization with chapters in junior middle schools, high schools, community colleges, and universities. Yet MEChA's geographic expansion was rather uneven. From 1969 to 1971, MEChA grew rapidly in California with major centers of activism on campuses in Los Angeles, Santa Barbara, San Diego, and the Riverside-San Bernardino area. Other early chapters were also established in Washington, Oregon, Arizona, Colorado, and Indiana. In these years, new chapters were founded at universities and colleges exclusively.