Total enrollment
2,668
-22 (-1%) vs SY 2017-18
9 schools in Ontario
Oregon · Public K-12
Ontario sits inside Oregon and runs 9 public K-12 schools, serving about 2,904 students between them, an average of 323 per campus.
7-year change in Ontario
SY 2017-18 vs SY 2024-25School count
7
-2 (-22%) vs SY 2017-18
% White
29%
was 32%
% Hispanic
67%
was 63%
% Black
0%
was 1%
% Asian
0%
was 0%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
| Name | Level | Grades | Enrollment |
|---|---|---|---|
| Aiken Elementary School | Elementary | 02-03 | 333 |
| Alameda Intermediate School | Elementary | 04-05 | 355 |
| Annex Charter School | Combined | KG-12 | 131 |
| Cairo Elementary School | Elementary | KG-05 | 124 |
| Four Rivers Community School | Combined | KG-12 | 367 |
| May Roberts Primary School | Elementary | KG-01 | 302 |
| Ontario High School | High | 09-12 | 709 |
| Ontario Middle School | Middle | 06-08 | 471 |
| Pioneer Elementary School | Elementary | KG-05 | 112 |
About Ontario
Ontario is a medium-population Oregon city in terms of public-school footprint, with 9 schools and 2,904 students total.
Looking at the level breakdown, the city is built around 5 elementary, 1 middle, 1 high, and 2 other.
Per-campus enrollment runs near 323, lower than the state mean of about 418.
Five-year track record. Combined enrollment now sits at 2,668 students, held roughly steady from the 2,690 reported in SY 2017-18. The school count fell from 9 to 7 across the same 7-year window. On the demographic side, Hispanic enrollment moved from 63% to 67% over the same window.
In the discussion threads here, the community for Ontario discusses open enrollment windows, redistricting talk, and busing logistics. Posts come from current and former families, staff, and alumni.