- Enrollment
- 816
- Students per teacher
- 26.3:1
- Resource Index
- 38/100
Middle school (grades 6-8) · Yuma, AZ
Centennial Middle School
Federal NCES profile for Centennial Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 040240001976
👥 S:T ratio 22
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Middle School earns 23/100 on the Resource Investment Index, with class sizes larger than 74% of Arizona schools.
- #2 of 7
- middle schools in Yuma · Resource Index
- 23
- Resource Index · Lower
- 19.6:1
- large classes for Arizona
- 64.9%
- free-lunch eligible
Centennial Middle School has class sizes larger than 74% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Centennial Middle School ranks #2 of 7 middle schools in Yuma, AZ.
School address
District: Crane Elementary District (4501) · Arizona
NCES ID 040240001976 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-40 students YoY
Centennial Middle School shrank from 715 students in 2022-23 to 675 in 2023-24 (-5.6%).
Teacher FTE lost 33.0 → 32.7 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-40 students YoY 040240001976 · Yuma, AZ Middle · MID · TRAD
646 enr · 19.6:1 · 64.9% lunch · RII 23
Nearest enrollment peer: Gowan Science Academy (816 students)
Centennial Middle School shrank from 715 students in 2022-23 to 675 in 2023-24 (-5.6%). Teacher FTE lost 33.0 → 32.7 across the same CCD years. Read with this school → · District book → · Arizona schools → · Find another →
Centennial Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Gowan Science
Gowan Science Academy
816 students
- This school
Centennial Middle School
646 students
- Pueblo Element
Pueblo Elementary School
598 students
- Salida Del Sol
Salida Del Sol Elementary
588 students
- Mesquite Eleme
Mesquite Elementary
568 students
- Crane Middle S
Crane Middle School
554 students
What this shows Centennial Middle School reports 646 students on the CCD universe file.
How Centennial Middle School compares
Centennial Middle School is a shrinking campus on CCD: ratios and free-lunch share vs Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.6:1 | ▲ 15% | 17:1 | 15.7:1 |
| Free-lunch eligible | 64.9% | ▲ 34% | 48.3% | 51.7% |
| Enrollment | 646 | top 25% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.6:1
Leaner classes than 17% of US schools, heavier class loads than most.
646
Bigger than 76% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
64.9%
free-lunch eligible
- 34% above the Arizona average of 48.3%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
19.6:1
students per teacher
- 15% above state mean
Top 74% in Arizona - lower ratio than 26% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
73.4%
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
$10,261
per pupil, district-wide
- below Arizona avg of $13,502
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 646 students, the combined health-and-guidance staffing load for this school.
Discipline context
108
in-school suspensions + 69 out-of-school
Suspension rate: 16.7 per 100 students. Combined in-school and out-of-school rate: 27.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 86.7%
White 9.4%
Two or More 1.4%
African American 1.1%
Asian 0.8%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 86.7% of enrollment.
Student-body diversity index 23.9/100
Simpson diversity index - at 23.9, Centennial Middle School is less mixed than the Arizona school average of 47.2.
Programs
Gifted & talented Yes
District finance for Crane Elementary District (4501) reports $10,261 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 |
|---|---|---|---|
| Gowan Science Academy | Larger | Lower economic need | Higher S:T ratio |
| Pueblo Elementary School | Similar size | Similar economic need | Higher S:T ratio |
| Salida Del Sol Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Mesquite Elementary | Similar size | Lower economic need | Higher S:T ratio |
| Crane Middle School | Similar size | Lower economic need | Higher 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
- 598
- Students per teacher
- 23:1
- Resource Index
- 20/100
- Enrollment
- 588
- Students per teacher
- 17.3:1
- Resource Index
- 25/100
- Enrollment
- 568
- Students per teacher
- 22.7:1
- Resource Index
- 13/100
- Enrollment
- 554
- Students per teacher
- 21.3:1
- Resource Index
- 21/100
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 (~646 students)
Similar student-teacher ratio (~19.6:1)
Frequently asked questions about Centennial Middle School
How many students attend Centennial Middle School?
Centennial Middle School has 646 students enrolled. It is a middle school in Yuma, AZ. CCD year-over-year: 715 (2022-23) → 675 (2023-24), down 40.
What is the student-teacher ratio at Centennial Middle School?
The student-teacher ratio at Centennial Middle School is 19.6:1, which is 15% higher than the Arizona average of 17:1 and 25% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Centennial Middle School?
64.9% of students at Centennial Middle School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Centennial Middle School?
The largest demographic group at Centennial Middle School is Hispanic or Latino at 86.7% of enrollment, in Yuma, AZ.
What is the Resource Investment Index for Centennial Middle School?
Centennial Middle School has a Resource Investment Index of 23/100 (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 Yuma?
By Resource Investment Index, Centennial Middle School ranks #2 of 7 middle schools in Yuma, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Yuma on the city page.
What other schools are in Crane Elementary District (4501)?
Besides Centennial Middle School, Crane Elementary District (4501) also operates Gowan Science Academy (816 students), Pueblo Elementary School (598 students), and Salida Del Sol Elementary (588 students). See the Crane Elementary District (4501) district page for the complete list.