- Enrollment
- 1,642
- Students per teacher
- 24.9:1
- Resource Index
- 39/100
Middle school (grades 6-8) · Snohomish, WA
Centennial Middle School
Federal NCES profile for Centennial Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 530802000540
👥 S:T ratio 14
🌟 Gifted program 70
🎓 Counselors 27
📋 Attendance 48
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Middle School earns 40/100 on the Resource Investment Index, with class sizes larger than 86% of Washington schools.
- #3 of 3
- middle schools in Snohomish · Resource Index
- 40
- Resource Index · Typical
- 21.6:1
- large classes for Washington
- 21.1%
- free-lunch eligible
Centennial Middle School has class sizes larger than 86% of Washington schools. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Centennial Middle School ranks #3 of 3 middle schools in Snohomish, WA.
School address
District: Snohomish School District · Washington
NCES ID 530802000540 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+15 students YoY
Centennial Middle School held near 735 students from 2022-23 to 2023-24 (+15 headcount).
Teacher FTE lost 34.3 → 33.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+15 students YoY 530802000540 · Snohomish, WA Middle · MID · TRAD
734 enr · 21.6:1 · 21.1% lunch · RII 40
Nearest enrollment peer: Glacier Peak High School (1,642 students)
Centennial Middle School held near 735 students from 2022-23 to 2023-24 (+15 headcount). Teacher FTE lost 34.3 → 33.6 across the same CCD years. Read with this school → · District book → · Washington schools → · Find another →
Centennial Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Glacier Peak H
Glacier Peak High School
1,642 students
- Snohomish High
Snohomish High School
1,496 students
- This school
Centennial Middle School
734 students
- Dutch Hill Ele
Dutch Hill Elementary
694 students
- Little Cedars 646
Little Cedars Elementary School
646 students
- Valley View Mi 641
Valley View Middle School
641 students
What this shows Centennial Middle School reports 734 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 Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.6:1 | ▲ 23% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 21.1% | ▼ 53% | 45.0% | 51.7% |
| Enrollment | 734 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.6:1
Leaner classes than 11% of US schools, heavier class loads than most.
734
Bigger than 82% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
21.1%
free-lunch eligible
- 53% below the Washington average of 45.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21.6:1
students per teacher
- 23% above state mean
Top 86% in Washington - lower ratio than 14% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
20.7%
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
$17,157
per pupil, district-wide
- below Washington avg of $20,912
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors2.0 FTE
Per 367 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 71.1%
Hispanic or Latino 16.5%
Two or More 6.1%
Asian 4.1%
African American 1.0%
American Indian / Alaska Native 0.7%
Native Hawaiian / Pacific Islander 0.5%
Largest group: White at 71.1% of enrollment.
Student-body diversity index 46.2/100
Simpson diversity index - at 46.2, Centennial Middle School is less mixed than the Washington school average of 53.3.
Programs
Gifted & talented Yes
District finance for Snohomish School District reports $17,157 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 |
|---|---|---|---|
| Glacier Peak High School | Larger | Similar economic need | Higher S:T ratio |
| Snohomish High School | Larger | Similar economic need | Similar S:T ratio |
| Dutch Hill Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Little Cedars Elementary School | Similar size | Lower economic need | Lower S:T ratio |
| Valley View Middle School | Similar size | Similar economic need | Similar 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
- 1,496
- Students per teacher
- 22:1
- Resource Index
- 44/100
- Enrollment
- 694
- Students per teacher
- 19.3:1
- Resource Index
- 43/100
- Enrollment
- 646
- Students per teacher
- 19.6:1
- Resource Index
- 43/100
- Enrollment
- 641
- Students per teacher
- 22.9:1
- Resource Index
- 46/100
Similar middle schools in Snohomish
2 comparable middle schools (grades 6-8) serving the same city.
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 (~734 students)
Similar student-teacher ratio (~21.6:1)
Frequently asked questions about Centennial Middle School
How many students attend Centennial Middle School?
Centennial Middle School has 734 students enrolled. It is a middle school in Snohomish, WA. CCD year-over-year: 720 (2022-23) → 735 (2023-24), nearly flat (+15).
What is the student-teacher ratio at Centennial Middle School?
The student-teacher ratio at Centennial Middle School is 21.6:1, which is 23% higher than the Washington average of 17.6:1 and 38% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Centennial Middle School?
21.1% of students at Centennial Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Centennial Middle School?
The largest demographic group at Centennial Middle School is White at 71.1% of enrollment, in Snohomish, WA.
What is the Resource Investment Index for Centennial Middle School?
Centennial Middle School has a Resource Investment Index of 40/100 (typical 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 Snohomish?
By Resource Investment Index, Centennial Middle School ranks #3 of 3 middle schools in Snohomish, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Snohomish on the city page.
What other schools are in Snohomish School District?
Besides Centennial Middle School, Snohomish School District also operates Glacier Peak High School (1,642 students), Snohomish High School (1,496 students), and Dutch Hill Elementary (694 students). See the Snohomish School District district page for the complete list.