- Enrollment
- 2,002
- Students per teacher
- 15.5:1
- Resource Index
- 43/100
Middle school (grades 6-8) · Casper, WY
Centennial Middle School
Federal NCES profile for Centennial Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 560451000470
👥 S:T ratio 44
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 23
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Middle School earns 34/100 on the Resource Investment Index, with class sizes larger than 82% of Wyoming schools. It is also one of the largest schools in Wyoming.
- #2 of 3
- middle schools in Casper · Resource Index
- 34
- Resource Index · Typical
- 14:1
- large classes for Wyoming
- 23.9%
- free-lunch eligible
Centennial Middle School has class sizes larger than 82% of Wyoming schools. Computed live against every Wyoming school reporting to NCES.
By Resource Investment Index, Centennial Middle School ranks #2 of 3 middle schools in Casper, WY.
School address
District: Natrona County School District #1 · Wyoming
NCES ID 560451000470 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-29 students YoY
Centennial Middle School held near 767 students from 2022-23 to 2023-24 (-29 headcount).
Teacher FTE lost 54.2 → 50.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-29 students YoY 560451000470 · Casper, WY Middle · MID · TRAD
755 enr · 14:1 · 23.9% lunch · RII 34
Nearest enrollment peer: Kelly Walsh High School (2,002 students)
Centennial Middle School held near 767 students from 2022-23 to 2023-24 (-29 headcount). Teacher FTE lost 54.2 → 50.9 across the same CCD years. Read with this school → · District book → · Wyoming schools → · Find another →
Centennial Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Kelly Walsh Hi
Kelly Walsh High School
2,002 students
- Natrona County
Natrona County High School
1,703 students
- C Y Middle Sch 766
C Y Middle School
766 students
- This school 755
Centennial Middle School
755 students
- Dean Morgan Mi 613
Dean Morgan Middle School
613 students
- Casper Classic 516
Casper Classical Academy
516 students
What this shows Centennial Middle School reports 755 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 Wyoming and U.S. means.
| Metric | This school | vs Wyoming | Wyoming avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14:1 | ▲ 23% | 11.4:1 | 15.7:1 |
| Free-lunch eligible | 23.9% | ▼ 13% | 27.4% | 51.7% |
| Enrollment | 755 | top 5% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14:1
Leaner classes than 57% of US schools, a middle-of-the-pack class size.
755
Bigger than 83% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
23.9%
free-lunch eligible
- 13% below the Wyoming average of 27.4%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14:1
students per teacher
- 23% above state mean
Top 82% in Wyoming - lower ratio than 18% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
30.9%
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
$16,870
per pupil, district-wide
- below Wyoming avg of $23,707
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 755 students, the combined health-and-guidance staffing load for this school.
Discipline context
129
in-school suspensions + 106 out-of-school
Suspension rate: 17.1 per 100 students. Combined in-school and out-of-school rate: 31.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 4 expulsions.
Student demographics
White 79.6%
Hispanic or Latino 13.8%
Two or More 4.4%
African American 1.1%
Asian 0.7%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 79.6% of enrollment.
Student-body diversity index 34.5/100
Simpson diversity index - at 34.5, Centennial Middle School is about as mixed as the Wyoming school average of 33.2.
Programs
Gifted & talented Yes
District finance for Natrona County School District #1 reports $16,870 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 |
|---|---|---|---|
| Kelly Walsh High School | Larger | Similar economic need | Higher S:T ratio |
| Natrona County High School | Larger | Similar economic need | Similar S:T ratio |
| C Y Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Dean Morgan Middle School | Similar size | Higher economic need | Lower S:T ratio |
| Casper Classical Academy | Smaller | Similar 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
- 1,703
- Students per teacher
- 14.6:1
- Resource Index
- 48/100
- Enrollment
- 766
- Students per teacher
- 14.7:1
- Resource Index
- 30/100
- Enrollment
- 613
- Students per teacher
- 11.8:1
- Resource Index
- 40/100
- Enrollment
- 516
- Students per teacher
- 16.6:1
- Resource Index
- 29/100
Similar middle schools in Casper
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 (~755 students)
Frequently asked questions about Centennial Middle School
How many students attend Centennial Middle School?
Centennial Middle School has 755 students enrolled. It is a middle school in Casper, WY. CCD year-over-year: 796 (2022-23) → 767 (2023-24), nearly flat (-29).
What is the student-teacher ratio at Centennial Middle School?
The student-teacher ratio at Centennial Middle School is 14:1, which is 23% higher than the Wyoming average of 11.4:1 and 11% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Centennial Middle School?
23.9% of students at Centennial Middle School are eligible for free lunch, compared to the Wyoming average of 27.4%.
What is the racial and ethnic makeup of Centennial Middle School?
The largest demographic group at Centennial Middle School is White at 79.6% of enrollment, in Casper, WY.
What is the Resource Investment Index for Centennial Middle School?
Centennial Middle School has a Resource Investment Index of 34/100 (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 Casper?
By Resource Investment Index, Centennial Middle School ranks #2 of 3 middle schools in Casper, WY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Casper on the city page.
What other schools are in Natrona County School District #1?
Besides Centennial Middle School, Natrona County School District #1 also operates Kelly Walsh High School (2,002 students), Natrona County High School (1,703 students), and C Y Middle School (766 students). See the Natrona County School District #1 district page for the complete list.