Total enrollment
2,170
-93 (-4%) vs SY 2020-21
7 schools in Ontario SD 8C
Oregon · 2,406 students · 1 city
Of the 7 public K-12 schools run by Ontario SD 8C, combined student count is roughly 2,406, with 5 elementary, 1 middle, and 1 high.
4-year change in Ontario SD 8C
SY 2020-21 vs SY 2024-25School count
5
-2 (-29%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Ontario SD 8C ranks
Among districts| Measure | This district | In Oregon | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 24.7% | #74 of 89 | N/A |
| Enrollment ranked largest first | 2,406 | #57 of 119 | #3,873 of 9,234 |
| Number of schools ranked most first | 7 | #52 of 119 | N/A |
| Students per teacher ranked fewest first | 15.9:1 | #27 of 119 | #6,359 of 9,044 |
| Diversity index ranked most diverse first | 46.7% | #48 of 93 | #3,352 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside Ontario SD 8C
State test results across the district's 4 scored schools run from Aiken Elementary School at 28.6% proficient to Ontario High School at 23.1%, a gap of 5.5 points. That is the 70th widest gap among 70 Oregon districts with four or more scored schools.
Since 2017-18, the 5 district schools that reported both years went from 2,024 to 2,170 students (up 7%) and from 112 to 135 full-time teachers (up 21%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Ontario High School | Ontario | High | 09-12 | 709 |
| Ontario Middle School | Ontario | Middle | 06-08 | 471 |
| Alameda Intermediate School | Ontario | Elementary | 04-05 | 355 |
| Aiken Elementary School | Ontario | Elementary | 02-03 | 333 |
| May Roberts Primary School | Ontario | Elementary | KG-01 | 302 |
| Cairo Elementary School | Ontario | Elementary | KG-05 | 124 |
| Pioneer Elementary School | Ontario | Elementary | KG-05 | 112 |
About Ontario SD 8C
As a compact district in Oregon, Ontario SD 8C teaches 2,406 students across 7 schools.
On the level-by-level breakdown, Ontario SD 8C covers 5 elementary, 1 middle, and 1 high school.
On a per-school basis, Ontario SD 8C runs about 344 students per school, 18% below the state mean of roughly 418.
Looking at the last 4 years. Across the same 4-year window, public-school enrollment decreased 4%: 2,263 students in SY 2020-21 versus 2,170 in SY 2024-25. Ontario SD 8C now counts 5 public schools, down from 7 in SY 2020-21.
On allk12, the community for Ontario SD 8C discusses enrollment trends, district policy changes, and bus-route updates. Parents, students, and educators in the area can post or comment.