- Enrollment
- 1,731
- Students per teacher
- 23.7:1
- Resource Index
- 31/100
Middle school (grades 6-8) · Portland, OR
Centennial Middle School
Federal NCES profile for Centennial Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 410280001013
👥 S:T ratio 14
🌟 Gifted program 70
🎓 Counselors 12
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Middle School earns 24/100 on the Resource Investment Index, with class sizes larger than 86% of Oregon schools. It is also more racially and ethnically mixed than most Oregon schools.
- #23 of 24
- middle schools in Portland · Resource Index
- 24
- Resource Index · Lower
- 21.4:1
- large classes for Oregon
- 67.9%
- free-lunch eligible
Centennial Middle School has class sizes larger than 86% of Oregon schools. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Centennial Middle School ranks #23 of 24 middle schools in Portland, OR.
School address
District: Centennial Sd 28j · Oregon
NCES ID 410280001013 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-9 students YoY
Centennial Middle School held near 867 students from 2022-23 to 2023-24 (-9 headcount).
Teacher FTE held 41.3 → 41.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-9 students YoY 410280001013 · Portland, OR Middle · MID · TRAD
876 enr · 21.4:1 · 67.9% lunch · RII 24
Nearest enrollment peer: Centennial High School (1,731 students)
Centennial Middle School held near 867 students from 2022-23 to 2023-24 (-9 headcount). Teacher FTE held 41.3 → 41.2 across the same CCD years. Read with this school → · District book → · Oregon schools → · Find another →
Centennial Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Centennial Hig
Centennial High School
1,731 students
- This school
Centennial Middle School
876 students
- Butler Creek E 509
Butler Creek Elementary School
509 students
- Oliver Middle 435
Oliver Middle
435 students
- Parklane Eleme 397
Parklane Elementary School
397 students
- Powell Butte E 392
Powell Butte Elementary School
392 students
What this shows Centennial Middle School reports 876 students on the CCD universe file.
How Centennial Middle School compares
Centennial Middle School held steady on CCD headcount: ratios and free-lunch share vs Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.4:1 | ▲ 22% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 67.9% | ▲ 29% | 52.8% | 51.7% |
| Enrollment | 876 | top 8% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.4:1
Leaner classes than 12% of US schools, heavier class loads than most.
876
Bigger than 88% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
67.9%
free-lunch eligible
- 29% above the Oregon average of 52.8%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21.4:1
students per teacher
- 22% above state mean
Top 86% in Oregon - lower ratio than 14% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
43.3%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,654
per pupil, district-wide
- below Oregon avg of $21,075
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 438 students, the combined health-and-guidance staffing load for this school.
Discipline context
95
in-school suspensions + 136 out-of-school
Suspension rate: 10.8 per 100 students. Combined in-school and out-of-school rate: 26.4 per 100 students. Reported via the Civil Rights Data Collection. Includes 4 expulsions.
Student demographics
White 34.2%
Hispanic or Latino 29.6%
Asian 16.3%
African American 9.1%
Two or More 6.8%
Native Hawaiian / Pacific Islander 3.1%
American Indian / Alaska Native 0.9%
Largest group: White at 34.2% of enrollment.
Student-body diversity index 75.5/100
Simpson diversity index - at 75.5, Centennial Middle School is more mixed than the Oregon school average of 47.1.
Programs
Gifted & talented Yes
District finance for Centennial Sd 28j reports $16,654 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Centennial Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Centennial High School | Larger | Similar economic need | Higher S:T ratio |
| Butler Creek Elementary School | Smaller | Similar economic need | Similar S:T ratio |
| Oliver Middle | Smaller | Similar economic need | Similar S:T ratio |
| Parklane Elementary School | Smaller | Similar economic need | Lower S:T ratio |
| Powell Butte Elementary School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Centennial Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 509
- Students per teacher
- 21.2:1
- Resource Index
- 21/100
- Enrollment
- 435
- Students per teacher
- 21.8:1
- Resource Index
- 13/100
- Enrollment
- 397
- Students per teacher
- 17.3:1
- Resource Index
- 30/100
- Enrollment
- 392
- Students per teacher
- 17.8:1
- Resource Index
- 30/100
Similar middle schools in Portland
6 comparable middle schools (grades 6-8) serving the same city.
Stoller Middle School
Standard public school
1,069 students 25.5:1 students per teacher
Tumwater Middle School
Standard public school
1,003 students 23.3:1 students per teacher
Ron Russell Middle School
Standard public school
780 students 17.3:1 students per teacher
Hauton B Lee Middle School
Standard public school
718 students 18.9:1 students per teacher
Jackson Middle School
Standard public school
715 students 20.4:1 students per teacher
Floyd Light Middle School
Standard public school
684 students 19:1 students per teacher
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~876 students)
Frequently asked questions about Centennial Middle School
How many students attend Centennial Middle School?
Centennial Middle School has 876 students enrolled. It is a middle school in Portland, OR. CCD year-over-year: 876 (2022-23) → 867 (2023-24), nearly flat (-9).
What is the student-teacher ratio at Centennial Middle School?
The student-teacher ratio at Centennial Middle School is 21.4:1, which is 22% higher than the Oregon average of 17.6:1 and 36% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Centennial Middle School?
67.9% of students at Centennial Middle School are eligible for free lunch, compared to the Oregon average of 52.8%.
What is the racial and ethnic makeup of Centennial Middle School?
The largest demographic group at Centennial Middle School is White at 34.2% of enrollment, in Portland, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 75.5/100.
What is the Resource Investment Index for Centennial Middle School?
Centennial Middle School has a Resource Investment Index of 24/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Centennial Middle School rank among middle schools in Portland?
By Resource Investment Index, Centennial Middle School ranks #23 of 24 middle schools in Portland, OR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Portland on the city page.
What other schools are in Centennial Sd 28j?
Besides Centennial Middle School, Centennial Sd 28j also operates Centennial High School (1,731 students), Butler Creek Elementary School (509 students), and Oliver Middle (435 students). See the Centennial Sd 28j district page for the complete list.