Montebello Unified School District is a school district based in Montebello, California, United States.
Montebello USD serves the city of Montebello, portions of the cities of Bell Gardens, Commerce, Downey, Monterey Park, Pico Rivera, Rosemead, and a part of the unincorporated community of East Los Angeles as well as the unincorporated community of South San Gabriel. A portion of Bell lies within the district limits, but it has no residents.[1]