Ontario High School
656
Students
16.9:1
S:T Ratio
School Snapshot
Key metrics at a glance1,070
B
24
B+
17:1
B
87%
A
41%
B-
11%
C
This Week at Ontario – June 4, 2026
83 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Ontario High School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Ontario High School.
National Tests
June 5, 2026
ACT
June 6, 2026
SAT — National
June 8, 2026
ACT Photo Upload/Standby Deadline
June 13, 2026
ACT — National
June 20, 2026 – July 4, 2026
SAT Score Release Date
June 23, 2026
ACT
State Assessments
February 2, 2026 – June 12, 2026
Oregon Statewide Assessment System — OSAS
School Milestones
June 2, 2026 – June 11, 2026
Graduation
June 4, 2026
School End/Summer Start
After Ontario High
Where graduates go and what they studyTreasure Valley Community College
Boise State University
Oregon State University
Eastern Oregon University
University of Oregon
Portland State University
Oregon Institute of Technology
University of Portland
Nursing
Biology
Business
Psychology
Pre-Medicine Studies
Chemistry
Criminal Justice and Law Enforcement Administration
Social Work and Youth Services
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SAT Prep
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ACT Prep
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Study Coach
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1:1 Tutoring
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Live Classes
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Practice Hub
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1115 W Idaho Ave, Ontario, OR 97914
(541)889-5309
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Ontario SD 8C