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Parents: what's one thing you'd want the Cheldelin Middle School administration to hear?
Community prompt from u/allk12. Replies below.
Enrollment
488
Middle
DISTRICT 600 · STATE 494
SCHOOL COMMUNITY·CORVALLIS SD 509J·NCES 410348000033
Cheldelin Middle School
987 Conifer Blvd NE, Corvallis, OR 97330 · (541) 757-5971 · Benton County
GRADES 06–08MIDDLE13-CITYTITLE IREGULAR SCHOOL488 STUDENTS
Student : Teacher
18.2:1
27 FTE teachers
DISTRICT 18.3:1 · STATE 19.3:1
Free / Reduced Lunch
58%
281 students
DISTRICT 58% · STATE 76%
Community
1
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 | 153 | 31% |
| Grade 7 | 146 | 30% |
| Grade 8 | 189 | 39% |
Student demographics
52%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 54% · 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
Test scores
OSAS 2024-25 . % ProficientEnglish Language Arts
58.6%
OR avg 43.0% . -1.4pp since 2023
Math
45.9%
OR avg 31.8% . +1.9pp since 2023
What this means: On the OSAS, Oregon's statewide test, about 59 of every 100 students at this school read and write at grade level and about 46 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 1 points since 2023, while math scores are up about 2 points.
OSAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 58.6% | 45.9% |
| 2023-24 | 60.0% | 44.0% |
% 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
51.1%
composite math + reading, all grades
Predicted
40.2%
based on OR schools with similar FRL share
Beats by
+10.9pp
above demographic expectation
What this means: About 51% of students here test proficient in math and reading, compared with the roughly 40% 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 →
Schools most like Cheldelin Middle School
Cheldelin Middle School's state test result (51.1% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Cheldelin Middle School this school | 488 | 57.6% | 51.1% |
| Roosevelt Middle School Eugene | 557 | 63.7% | 48.4% |
| Cedar Ridge Middle School Sandy | 471 | 60.5% | 38.4% |
| Ashland Middle School Ashland | 529 | 64.8% | 49.3% |
| Boring Middle School Boring | 427 | 60.0% | 41.2% |
| Monroe Middle School Eugene | 519 | 64.0% | 27.1% |
Matched among Oregon middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Cheldelin Middle School ranks
Among middle schools| Measure | This school | In Oregon |
|---|---|---|
| State test proficiency ranked highest first | 51.1% | #14 of 190 |
| Math proficiency ranked highest first | 45.9% | #20 of 200 ▲ 2 |
| Reading proficiency ranked highest first | 58.6% | #25 of 201 ▼ 9 |
| Enrollment ranked largest first | 488 | #99 of 208 |
| Students per teacher ranked fewest first | 18.2:1 | #86 of 180 |
| Diversity index ranked most diverse first | 51.7% | #92 of 180 |
| Free and reduced lunch ranked highest share first | 57.6% | #150 of 194 |
| Enrollment change since 2017-18 ranked steepest decline first | -15.0% | #54 of 141 |
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
488
+49 (+11%) vs 2020
-20% since 1990-91, when it was 607
Student : Teacher
18.2:1
was 17.6:1
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 | 488 | 26.8 | 18.2:1 | 58% (281) |
| 2023-24 | 535 | 25.9 | 20.6:1 | 43% (231) |
| 2022-23 | 570 | 30 | 19.0:1 | 31% (178) |
| 2020-21 | 439 | 25 | 17.6:1 | N/A |
| 2017-18 | 574 | 24.3 | 23.6:1 | 31% (179) |
| 2015-16 | 546 | 25 | 21.8:1 | 30% (162) |
| 2010-11 | 597 | 24 | 24.9:1 | 31% (186) |
| 2000-01 | 671 | 27 | 24.9:1 | 15% (98) |
| 1990-91 | 607 | 30 | 20.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Cheldelin Middle School.
Since 2017-18: students down 15% (574 to 488); teachers up 10% (24.3 to 26.8).
About Cheldelin Middle School
Cheldelin Middle School is a mid-sized middle school in Corvallis, Oregon. In all, 488 students attend the school in grades 6 through 8.
Cheldelin Middle School is run by Corvallis SD 509J, whose 13 schools enroll 5,916 students.
Federal enrollment data show Cheldelin Middle School is 66% White. Other groups make up 14% Hispanic, 10% multiracial, 6% Asian, and 2% Black. Benton County as a whole is about 79% White, so the school's share is lower. A diversity index of 52% means there is a 52% chance two randomly chosen students at Cheldelin Middle School are from different groups.
For every teacher at Cheldelin Middle School, there are about 18.2 students; the school has 26.8 full-time-equivalent teachers. The average for middle schools in Oregon, 19.3:1, is higher. There are 281 students eligible for free or reduced-price lunch, 58% of enrollment. That is in line with the 60% average for public schools in Benton County.
Predicted from its free or reduced-price lunch share, Cheldelin Middle School would score about 40.2%. It scores 51.1%, 10.9 points above that figure.
In Benton County, where the school is located, median household income comes to about $77,702, the share of adults with a bachelor's degree or higher is 54%, and about 8% of people live in poverty. There are 26 public schools in the county, enrolling about 9,268, Cheldelin Middle School among them.
Among nearby public schools, Letitia Carson Elementary School is closest at about 1.0 miles. In all, at least 8 other public schools sit within five miles of Cheldelin Middle School. Among the 9 closest schools with test data, this one included, Cheldelin Middle School ranks 2nd on average proficiency.
NCES assigns Cheldelin Middle School the locale City: Small, meaning inside a principal city with a population under 100,000.
An 11% rise took enrollment from 439 in 2020-21 to 488 in 2024-25.
You can use this page to share news and ask questions about open houses, carpools, and field trips. You can also rate the school on this page.
Benton County at a glance
View full county profilePopulation
96,303
Census ACS
Median income
$77,702
Household, ACS
Bachelor's+
54%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
26
9,268 students
Quick facts
Related schools
Other schools in Corvallis SD 509J
- Corvallis High SchoolHigh · 1,273 students
- Crescent Valley High SchoolHigh · 875 students
- Linus Pauling Middle SchoolMiddle · 712 students
- Garfield Elementary SchoolElementary · 378 students
- Bessie Coleman Elementary SchoolElementary · 351 students
- Adams Elementary SchoolElementary · 342 students
Other schools in Corvallis
- Corvallis High SchoolHigh · 1,273 students
- Crescent Valley High SchoolHigh · 875 students
- Linus Pauling Middle SchoolMiddle · 712 students
- Garfield Elementary SchoolElementary · 378 students
- Bessie Coleman Elementary SchoolElementary · 351 students
- Adams Elementary SchoolElementary · 342 students
Nearby schools
- Letitia Carson Elementary School1.0 mi · 333
- Crescent Valley High School1.6 mi · 875
- Linus Pauling Middle School1.7 mi · 712
- Garfield Elementary School1.8 mi · 378
- Mt View Elementary School1.9 mi · 211
- Corvallis High School2.3 mi · 1,273
Frequently asked questions
About Cheldelin Middle SchoolHow large is Cheldelin Middle School?
Cheldelin Middle School enrolls approximately 488 students in grades 06-08.
What age range does Cheldelin Middle School serve?
Cheldelin Middle School serves students from grade 06 through grade 08.
What is the student-teacher ratio at Cheldelin Middle School?
The student-to-teacher ratio at Cheldelin Middle School is approximately 18.2:1 (27 FTE teachers).
What is the racial breakdown of students at Cheldelin Middle School?
At Cheldelin Middle School, the student body is approximately 66% White, 14% Hispanic, 2% Black, 6% Asian, 10% Two or more.
What district is Cheldelin Middle School in?
Cheldelin Middle School is part of Corvallis SD 509J.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.