Alliance College-Ready Public Schools

Skip to main content
Mobile Menu

Alliance Dr. Olga Mohan High School

Alliance Dr. Olga Mohan High School is a free, public charter school authorized by the Los Angeles Unified School District.

Enrollment for Current School Year

460 students in grades 9-12

Date Opened

August 2006


644 West 17th Street
Los Angeles, CA 90015
See map


(213) 342-2870


(213) 342-2871


Enrollment Deadline

Tuesday, December 1, 2015

Apply in English or Spanish.


Alliance Dr. Olga Mohan High School achieved an Academic Performance Index (API) score of 895, ranking it the 3rd top-performing public high school in LAUSD.  In 2014, 100 percent of Alliance Dr. Olga Mohan High School graduates were accepted to college.  For more on the school's current Performance Indicators, click here.
Alliance Mohan High School ranks in the top 1% of high schools nationwide by US News & World Report, and among the top 25 "Most Transformative" high schools in the nation by Newsweek.  The school was recognized as a California Distinguished School in 2009 and 2013.  This award recognizes the state’s most exemplary, inspiring, and well-rounded community public schools. In 2011, the California Charter School Association honored Alliance Mohan High School with the "Charter School of the Year" annual Hart Vision Award, and in 2010 the school was recognized as a Gold Medal EPIC Gains school for student achievement.


Alliance Dr. Olga Mohan High School is located just south of downtown Los Angeles. The surrounding community is home to mainly non-charter public high schools, many of which are low-performing and overcrowded.

Demographics and Average Daily Attendance

99% Latino and 1% Other, 11% English Language Learner (ELL) students, and 96% free or reduced meal program participants. 

Principal Profile

Loreen Riley originally came to Alliance Dr. Olga Mohan High school during the school's second year in 2007. She has been a major contributor to the success of the school as both a teacher and an assistant principal. Her understanding of the history and best practices of the school guide her in all instructional leadership decisions to effectively lead the school towards continuous success. In addition to serving as the Principal at Mohan, Mrs. Riley acts a University Supervisor for future administrators at Loyola Marymount University. Mrs. Riley holds a bachelors degree in History from California State University, Fullerton, and a master's in Educational Leadership from Loyola Marymount University with a specific focus on Charter School Leadership.