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(909) 477-6900 Ext 2114
Email: sandra.lopez@cjuhsd.net

Los Osos High School

Address: 6001 Milliken AveRancho Cucamonga, CA 91737

Phone: +1 909-477-6900

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Contents © 2026 Los Osos High School

Notice of Non-Discrimination: In compliance with federal law, our school district administers all education programs, employment activities and admissions without discrimination against any person on the basis of gender, race, color, religion, national origin, age, or disability.