- Enrollment
- 1,245
- Students per teacher
- 17.3:1
- Resource Index
- 32/100
Middle school (grades 6-8) · South Lyon, MI
Centennial Middle School
Federal NCES profile for Centennial Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 263225001599
👥 S:T ratio 25
🌟 Gifted program 30
🎓 Counselors 31
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Centennial Middle School earns 22/100 on the Resource Investment Index, with class sizes larger than 70% of Michigan schools.
- #9 of 9
- public schools in South Lyon · Resource Index
- 22
- Resource Index · Lower
- 18.7:1
- large classes for Michigan
- 17.0%
- free-lunch eligible
Centennial Middle School has class sizes larger than 70% of Michigan schools. Computed live against every Michigan school reporting to NCES.
By Resource Investment Index, Centennial Middle School ranks #9 of 9 public schools in South Lyon, MI.
School address
District: South Lyon Community Schools · Michigan
NCES ID 263225001599 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+34 students YoY
Centennial Middle School held near 899 students from 2022-23 to 2023-24 (+34 headcount).
Teacher FTE added 48.8 → 49.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+34 students YoY 263225001599 · South Lyon, MI Middle · MID · TRAD
898 enr · 18.7:1 · 17.0% lunch · RII 22
Nearest enrollment peer: South Lyon High School (1,245 students)
Centennial Middle School held near 899 students from 2022-23 to 2023-24 (+34 headcount). Teacher FTE added 48.8 → 49.5 across the same CCD years. Read with this school → · District book → · Michigan schools → · Find another →
Centennial Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- South Lyon Hig
South Lyon High School
1,245 students
- South Lyon Eas
South Lyon East High School
1,174 students
- Millennium Mi
Millennium Middle School
1,049 students
- This school
Centennial Middle School
898 students
- William a Pear
William a Pearson Elementary
576 students
- Sharon J Hardy
Sharon J Hardy Elementary School
570 students
What this shows Centennial Middle School reports 898 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 Michigan and U.S. means.
| Metric | This school | vs Michigan | Michigan avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.7:1 | ▲ 7% | 17.5:1 | 15.7:1 |
| Free-lunch eligible | 17.0% | ▼ 69% | 54.3% | 51.7% |
| Enrollment | 898 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.7:1
Leaner classes than 21% of US schools, heavier class loads than most.
898
Bigger than 89% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
17.0%
free-lunch eligible
- 69% below the Michigan average of 54.3%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
18.7:1
students per teacher
- 7% above state mean
Top 70% in Michigan - lower ratio than 30% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
47.0%
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
$13,496
per pupil, district-wide
- below Michigan avg of $15,012
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.6 FTE
Per 345 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 58 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 6.5 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 77.8%
Asian 9.7%
Hispanic or Latino 5.5%
Two or More 4.2%
African American 2.8%
Largest group: White at 77.8% of enrollment.
Student-body diversity index 38.0/100
Simpson diversity index - at 38.0, Centennial Middle School is about as mixed as the Michigan school average of 36.2.
Programs
District finance for South Lyon Community Schools reports $13,496 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 |
|---|---|---|---|
| South Lyon High School | Larger | Similar economic need | Similar S:T ratio |
| South Lyon East High School | Larger | Similar economic need | Higher S:T ratio |
| Millennium Middle School | Similar size | Similar economic need | Higher S:T ratio |
| William a Pearson Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Sharon J Hardy 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
- 1,174
- Students per teacher
- 21:1
- Resource Index
- 27/100
- Enrollment
- 1,049
- Students per teacher
- 20.2:1
- Resource Index
- 33/100
- Enrollment
- 576
- Students per teacher
- 19.9:1
- Resource Index
- 45/100
- Enrollment
- 570
- Students per teacher
- 14.6:1
- Resource Index
- 36/100
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 (~898 students)
Frequently asked questions about Centennial Middle School
How many students attend Centennial Middle School?
Centennial Middle School has 898 students enrolled. It is a middle school in South Lyon, MI. CCD year-over-year: 865 (2022-23) → 899 (2023-24), nearly flat (+34).
What is the student-teacher ratio at Centennial Middle School?
The student-teacher ratio at Centennial Middle School is 18.7:1, which is 7% higher than the Michigan average of 17.5:1 and 19% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Centennial Middle School?
17.0% of students at Centennial Middle School are eligible for free lunch, compared to the Michigan average of 54.3%.
What is the racial and ethnic makeup of Centennial Middle School?
The largest demographic group at Centennial Middle School is White at 77.8% of enrollment, in South Lyon, MI.
What is the Resource Investment Index for Centennial Middle School?
Centennial Middle School has a Resource Investment Index of 22/100 (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 public schools in South Lyon?
By Resource Investment Index, Centennial Middle School ranks #9 of 9 public schools in South Lyon, MI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in South Lyon on the city page.
What other schools are in South Lyon Community Schools?
Besides Centennial Middle School, South Lyon Community Schools also operates South Lyon High School (1,245 students), South Lyon East High School (1,174 students), and Millennium Middle School (1,049 students). See the South Lyon Community Schools district page for the complete list.