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Public middle school · Corvallis Sd 509j · Corvallis, Oregon

Cheldelin Middle School

Cheldelin Middle School rates 7.1, right at the middle of Corvallis Sd 509j's middle schools, whose rated median is 6.8.

Middle schools, 1 to 10This campus against public middle schools around it that are rated on verified state test data.
7.1this school

7.1 on a one-to-ten scale; the Corvallis Sd 509j median is 6.8.

#407 of 1,229 schools in Oregon · Corvallis Sd 509j: 2 middle schools rated, median 6.8

The brief

A Corvallis Sd 509j middle school where students score 8 points above what's typical for similar communities.

It ranks 407 of 1,229 schools in Oregon and 6 of 13 in Corvallis Sd 509j.

Cheldelin Middle School is listed in Corvallis Sd 509j, and a district label does not verify attendance for an address: confirm the zoned campus with the district before you commit to a street.

Math46%14 points above the Oregon average of 32%455 students tested · 2025 OSAS
Reading59%16 points above the Oregon average of 43%463 students tested · 2025 OSAS
Proficiency has fallen 11 points since 2018, to 52% in 2025, across a 17-year record (2009–2025).2025 OSAS; 26 test records from OR state assessments and EdFacts (NCES).

What the rating is made of, each out of 10

Student Progress
7.0
40% of the rating
Academics
8.7
35% of the rating
Resources & Environment
5.1
25% of the rating
About this school's data1 correction under review · rating: low confidence · 7 sources, 2019–2025

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, an estimate, or describes a surrounding area rather than the school, that limitation is named here.

Attendance data is under correction. This existing Resources & Environment score and overall rating may still reflect an unverified attendance input.

Full Profile · 3/3 metrics

Multi-year averages used by the rating model: math 67% (multi-year average, 2009-2025) · reading/ELA 76% (multi-year average, 2009-2025).

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2025 OSAS · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 OSAS. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 OSAS · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2025 OSAS. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 97330; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24

The neighborhood

Where it sits, and what the area looks like.
Cheldelin Middle School and the 20 nearest middle schools, each pin colored by its score.Pins are locations, not attendance boundaries. Verify the enrollment path with the district.

The area

Median income
$69,127
Median home value
$495,700
Median rent
$1,339/mo
College educated
59.9%
Homeownership
50.1%
Poverty rate
21.3%

U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 97330; this is area context, not an attendance boundary.

Getting around

Walk Score
13
Car-Dependent
Transit Score
21
Minimal Transit
Bike Score
78
Very Bikeable
City reported crime
2,357/100K
Reported Part-1 offenses (violent + property + arson) per 100,000 residents, from the FBI Uniform Crime Reporting program for Corvallis. This is a city-level reported-crime measure, not a school safety rating.

Walk, transit and bike scores byWalk Score

FBI Uniform Crime Reporting · 2025 · city context (Corvallis), not school-level safety or attendance eligibility. Source details

Source period: 2025. Freshness not available.

Programs and who goes here

What the campus offers, and who it enrolls.

Programs

Gifted and talented
Available
A program for qualifying students · CRDC via Urban Institute · SY 2021–22

Who goes here

Free or reduced lunch
43.2%
Students qualifying for federal meal assistance. Shown separately, never in the score.

NCES Common Core of Data (CCD).

Compare nearby

Grade-compatible schools using the same rating model.
Public-school ratings. Grade-compatible schools within 5 miles, best rated first.
  1. Cheldelin Middle Schoolthis school
    7.1
  2. 6.4Compare →
One grade-compatible school using the same rating model sits within 5 miles, and none rates higher than Cheldelin Middle School.Public-school ratings. Straight-line distance from this campus. Pins are locations, not attendance boundaries; verify the enrollment path with the district.

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

The record

What is on file, and where each number came from.

Questions families ask

What grades does Cheldelin Middle School serve?

Cheldelin Middle School serves students in grades 6th through 8th.

How many students attend Cheldelin Middle School?

Cheldelin Middle School has an enrollment of approximately 535 students.

What is the student-teacher ratio at Cheldelin Middle School?

The student-teacher ratio at Cheldelin Middle School is 21.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Cheldelin Middle School rank in OR?

Cheldelin Middle School ranks #407 of 1,229 schools in OR.

What is Cheldelin Middle School's MySchoolScout rating?

Cheldelin Middle School has a current MySchoolScout rating of 7.1 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Cheldelin Middle School?

Based on loaded state assessment records, Cheldelin Middle School has 67% math proficiency (multi-year average, 2009-2025) and 76% reading/ELA proficiency (multi-year average, 2009-2025).

Is Cheldelin Middle School a charter school?

No, Cheldelin Middle School is not a charter school. It is a traditional public school operated by the local school district.

Is Cheldelin Middle School a Title I school?

No, Cheldelin Middle School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Cheldelin Middle School?

43.2% of students at Cheldelin Middle School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School facts

Grades
6th – 8th
Enrollment
535
Student-teacher ratio
21.4:1
Teachers (FTE)
25
Type
Regular
Title I
No
Setting
Small City
County
Benton County
Rank in district
#6 of 13
Schools in district
13
District spending per student
$17,764
NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
9.7%
Census SAIPE · 2024
Area population (ZIP 97330)
44,464
Area average commute
16.8 min
Area median age
34

NCES Common Core of Data (CCD) (SY 2023–24).

Related reading

Data from NCES Common Core of Data, Oregon Dept. of Education, and U.S. Census ACS for the 2023–24 school year. Rankings computed by MySchoolScout. See all data sources.