Ontario High School

Located at 1115 W Idaho Ave, in Ontario, Oregon, Ontario High School is a mid-tier high school that works with 709 students (grades 9 through 12), one of the schools within Ontario SD 8C.

Within Ontario SD 8C, which oversees 7 schools and 2,406 students, Ontario High School is one campus in the system.

On the student-mix side, Ontario High School logs that 68% of the student body identifies as Hispanic. The remainder comes out to 27% White, 4% multiracial. The wider county runs roughly 34% Hispanic, putting the school's mix visibly more Hispanic than the area baseline.

Looking at the economic backdrop, On paper, Ontario High School has 40 full-time-equivalent teachers, translating to a class-load average of around 17.8:1. Statewide, the average ratio sits near 19.8:1, putting Ontario High School tighter than the state norm the norm. About 100% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. By comparison, Malheur County runs at roughly 89%, so the school's eligibility rate is meaningfully above the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, Ontario High School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 23.8%; this one delivers 23.1%.

In the area at large, community-level numbers for Malheur County indicate median household income runs about $54,519, roughly 15% of adults have completed at least a four-year degree, and the poverty rate sits near 15%. Across Malheur County's 25 public schools (combined enrollment of about 6,566 students), Ontario High School is one campus in the mix.

The closest other public school is Aiken Elementary School, roughly 0.3 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Ontario High School comes 5th of 5 in the immediate cluster, beneath the nearby-schools average of 27.6%.

The campus sits in a town-based setting.

Over the past 7-year window. Over the past 7-year window, the student count edged up 12%: 635 students in 2018 compared to 709 in 2025. The White share of enrollment contracted from 38% to 27% over that span.

Within the allk12 community for this school, members of the Ontario High School community share and discuss school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.