Enrollment
471
Middle
DISTRICT 344 · STATE 494
SCHOOL COMMUNITY·ONTARIO SD 8C·NCES 410927000745
Ontario Middle School
573 SW 2nd Ave, Ontario, OR 97914 · (541) 889-5377 · Malheur County
GRADES 06–08MIDDLE32-TOWNTITLE IREGULAR SCHOOL471 STUDENTS
Student : Teacher
15.2:1
31 FTE teachers
DISTRICT 15.4:1 · STATE 19.3:1
Free / Reduced Lunch
101%
475 students
DISTRICT 101% · STATE 76%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 166 | 35% |
| Grade 7 | 163 | 35% |
| Grade 8 | 142 | 30% |
Student demographics
46%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 48% · STATE 59% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Ontario Middle School→Ontario High School
Feeds from
Based on grade levels within Ontario SD 8C. Attendance zones can vary; confirm enrollment with the district.
Test scores
OSAS 2024-25 . % ProficientEnglish Language Arts
39.9%
OR avg 43.0% . -2.8pp since 2023
Math
21.2%
OR avg 31.8% . +0.6pp since 2023
What this means: On the OSAS, Oregon's statewide test, about 40 of every 100 students at this school read and write at grade level and about 21 of 100 do math at grade level. Across all Oregon schools, those numbers are about 43 and 32. Reading and writing scores are down about 3 points since 2023, while math scores have held steady.
OSAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 39.9% | 21.2% |
| 2023-24 | 42.7% | 20.6% |
% Proficient, all students and all tested grades.
Source: OSAS. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
23.6%
composite math + reading, all grades
Predicted
23.4%
based on OR schools with similar FRL share
Beats by
+0.1pp
above demographic expectation
What this means: About 24% of students here test proficient in math and reading, compared with the roughly 23% typical for Oregon schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Oregon's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Where Ontario Middle School ranks
Among middle schools| Measure | This school | In Oregon |
|---|---|---|
| State test proficiency ranked highest first | 23.6% | #144 of 190 |
| Math proficiency ranked highest first | 21.2% | #137 of 200 ▼ 10 |
| Reading proficiency ranked highest first | 39.9% | #101 of 201 ▼ 19 |
| Enrollment ranked largest first | 471 | #107 of 208 |
| Students per teacher ranked fewest first | 15.2:1 | #15 of 180 |
| Diversity index ranked most diverse first | 46.1% | #114 of 180 |
| Free and reduced lunch ranked highest share first | 101% | #12 of 194 |
| Enrollment change since 2017-18 ranked fastest growth first | +46.3% | #5 of 38 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
471
+110 (+30%) vs 2020
-33% since 1990-91, when it was 705
Student : Teacher
15.2:1
was 17.2:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 471 | 31 | 15.2:1 | N/A |
| 2023-24 | 333 | 23.8 | 14.0:1 | N/A |
| 2022-23 | 378 | 21 | 18.0:1 | 99% (376) |
| 2020-21 | 361 | 21 | 17.2:1 | N/A |
| 2017-18 | 322 | 20.9 | 15.4:1 | 76% (245) |
| 2015-16 | 321 | 20 | 16.1:1 | 76% (245) |
| 2010-11 | 550 | 37 | 14.9:1 | 76% (420) |
| 2000-01 | 601 | 45 | 13.4:1 | 58% (348) |
| 1990-91 | 705 | 40 | 17.6:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Ontario Middle School.
Since 2017-18: students up 46% (322 to 471); teachers up 48% (20.9 to 31).
About Ontario Middle School
Ontario Middle School is a medium-sized middle school in Ontario, Oregon, one of the schools in Ontario SD 8C. The school's 471 students are in grades 6 through 8.
District-wide, Ontario SD 8C has 7 schools and 2,406 students.
By race and ethnicity, Ontario Middle School is 67% Hispanic. It is also 29% White and 3% multiracial. For comparison, the population of Malheur County is roughly 34% Hispanic. The chance that two students picked at random at Ontario Middle School belong to different racial or ethnic groups, known as the diversity index, is 46%.
At Ontario Middle School, 31 full-time-equivalent teachers work with students, a ratio of about 15.2:1. That ratio is under the 19.3:1 average for middle schools in Oregon.
The allk12 BeatsExpectations score for Ontario Middle School is +0.1 points: 23.6% actual, 23.4% predicted.
Within Malheur County, median household income is about $54,519, 15% of adults hold a bachelor's degree or higher, and about 15% of people live in poverty. The public schools of Malheur County number 25 and enroll about 6,566.
Ontario High School is the closest public school, about 0.5 miles away in a straight line. There are at least 8 more public schools inside five miles. Ontario Middle School places 4th of 5 on proficiency among the closest schools that report scores.
The NCES locale for Ontario Middle School is Town: Distant, which covers schools in a town some distance from an urbanized area.
Ontario Middle School saw enrollment rise 30% between 2020-21 and 2024-25. The number of students per teacher fell from 17.2 to 15.2 over 4 years.
Questions about science fairs, picture day, and bus routes can be posted here. Reviews and ratings from people who know the school are welcome.
Malheur County at a glance
View full county profilePopulation
31,954
Census ACS
Median income
$54,519
Household, ACS
Bachelor's+
15%
Adults 25+
Poverty rate
15%
Below federal line
Schools in county
25
6,566 students
Quick facts
Related schools
Other schools in Ontario SD 8C
- Ontario High SchoolHigh · 709 students
- Alameda Intermediate SchoolElementary · 355 students
- Aiken Elementary SchoolElementary · 333 students
- May Roberts Primary SchoolElementary · 302 students
- Cairo Elementary SchoolElementary · 124 students
- Pioneer Elementary SchoolElementary · 112 students
Other schools in Ontario
- Ontario High SchoolHigh · 709 students
- Four Rivers Community SchoolCombined · 367 students
- Alameda Intermediate SchoolElementary · 355 students
- Aiken Elementary SchoolElementary · 333 students
- May Roberts Primary SchoolElementary · 302 students
- Annex Charter SchoolCombined · 131 students
Other Ontario Middle schools
One other US public school is named Ontario Middle. Ontario Middle School is the largest of the 2.
- Ontario Middle SchoolMansfield, OH · 471 students
Nearby schools
- Ontario High School0.5 mi · 709
- May Roberts Primary School0.5 mi · 302
- Aiken Elementary School0.7 mi · 333
- Alameda Intermediate School0.8 mi · 355
- Four Rivers Community School1.3 mi · 367
- TREASURE VALLEY CLASSICAL ACADEMY2.8 mi · 589
Frequently asked questions
About Ontario Middle SchoolWhat is the total enrollment at Ontario Middle School?
Ontario Middle School enrolls approximately 471 students in grades 06-08.
What age range does Ontario Middle School serve?
Ontario Middle School serves students from grade 06 through grade 08.
How many students per teacher at Ontario Middle School?
Approximately 15.2:1 students per teacher at Ontario Middle School.
What is the racial breakdown of students at Ontario Middle School?
At Ontario Middle School, the student body is approximately 29% White, 67% Hispanic, 0% Black, 0% Asian, 3% Two or more.
Is Ontario Middle School public or private?
Ontario Middle School is a public K-12 school, overseen by Ontario SD 8C.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.