Total Students2,623
Student/Teacher22.92:1
Math Prof.22.82%
Reading Prof.62.6%
School Information
Charter SchoolNo
Magnet SchoolNo
Virtual SchoolNo
CountySan Bernardino
School DistrictRialto Unified School District
Principal / AdminCaroline Sweeney(909) 421-7500
Founded1992
Free/Reduced Lunch85.67% Eligible
Acceptance Rate100%
Student Demographics
White1.2%
Hispanic91.3%
Black5.4%
Asian1.1%
Native American0.2%
Two Or More0.6%
Gender Distribution
52.2%
47.6%
Male Female
Students per Grade
Grade 9711
Grade 10611
Grade 11684
Grade 12617
School Calendar 2026-2027
July 2026
Academic Schedule • 2026-2027
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Rialto High School
Academic Calendar (2026-2027)
July 2026
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August 2026
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September 2026
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October 2026
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November 2026
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December 2026
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January 2027
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February 2027
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March 2027
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April 2027
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May 2027
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Key Dates & Holidays
Independence Day Observed HolidayJul 3
First Day for StudentsAug 5
Labor Day HolidaySep 7
Instructional BreakOct 12
Veterans' Day HolidayNov 11
Fall BreakNov 23
Thanksgiving HolidayNov 26
Winter Break BeginsDec 21
Christmas Eve HolidayDec 24
Christmas Day HolidayDec 25
In lieu of Admissions DayDec 31
New Year's Day HolidayJan 1
Winter Recess ContinuationJan 1
Dr. Martin Luther King's Day HolidayJan 18
Lincoln's Day HolidayFeb 8
Presidents' Day HolidayFeb 15
Spring BreakMar 17
Memorial Day HolidayMay 31
Last Day for StudentsJun 2
Juneteenth HolidayJun 18
Key Dates & Holidays
2026-2027A Hub for Student Success in Rialto
This institution, serving grades 9-12 within the Rialto Unified School District, fosters a dynamic learning environment. Families often look for schools offering competitive athletics like basketball and soccer, or enriching programs such as STEM and robotics. Students may also find opportunities to explore visual arts and participate in track.
Connect with Our Community
Discover a supportive educational community dedicated to student growth. Parents and guardians can review the academic calendar directly on this page to stay informed about key dates and events throughout the school year.
Frequently Asked Questions
What types of extracurricular activities are available for students?
While specific programs vary each year, students often have access to clubs like robotics and athletics such as soccer. We recommend contacting the administration directly for the current list of activities.
How can I get involved as a parent?
Parent involvement is highly valued. Opportunities range from volunteering at school events to joining parent-teacher organizations. Please reach out to the school office for current needs and ways to contribute.
What are the graduation requirements?
Graduation requirements are set by the Rialto Unified School District and state guidelines. Students work closely with counselors to ensure they meet all academic benchmarks for graduation.
Does the school offer college preparatory resources?
Yes, the campus provides resources to help students prepare for higher education, including college counseling services and information on standardized testing and application processes.
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