- Enrollment
- 1,174
- Students per teacher
- 21:1
- Resource Index
- 27/100
High school (grades 9-12) · South Lyon, MI
South Lyon High School
Federal NCES profile for South Lyon High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 263225006755
👥 S:T ratio 31
🌟 Gifted program 30
🎓 Counselors 38
📋 Attendance 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
South Lyon High School earns 32/100 on the Resource Investment Index, with class sizes near the Michigan median. It is also one of the largest schools in Michigan.
- #6 of 9
- public schools in South Lyon · Resource Index
- 32
- Resource Index · Typical
- 17.3:1
- students per teacher
- 14.5%
- free-lunch eligible
South Lyon High School has class sizes near the Michigan median. Computed live against every Michigan school reporting to NCES.
By Resource Investment Index, South Lyon High School ranks #6 of 9 public schools in South Lyon, MI.
School address
District: South Lyon Community Schools · Michigan
NCES ID 263225006755 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-40 students YoY
South Lyon High School held near 1,253 students from 2022-23 to 2023-24 (-40 headcount).
Teacher FTE added 72.8 → 78.3 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-40 students YoY 263225006755 · South Lyon, MI High · MID · TRAD
1,245 enr · 17.3:1 · 14.5% lunch · RII 32
Nearest enrollment peer: South Lyon East High School (1,174 students)
South Lyon High School held near 1,253 students from 2022-23 to 2023-24 (-40 headcount). Teacher FTE added 72.8 → 78.3 across the same CCD years. Read with this school → · District book → · Michigan schools → · Find another →
South Lyon High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
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
- Centennial Mid
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 South Lyon High School reports 1,245 students on the CCD universe file.
How South Lyon High School compares
South Lyon High 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 | 17.3:1 | ▼ 1% | 17.5:1 | 15.7:1 |
| Free-lunch eligible | 14.5% | ▼ 73% | 54.3% | 51.7% |
| Enrollment | 1,245 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.3:1
Leaner classes than 29% of US schools, heavier class loads than most.
1,245
Bigger than 94% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
14.5%
free-lunch eligible
- 73% 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
17.3:1
students per teacher
- 1% below state mean
Top 56% in Michigan - lower ratio than 44% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
28.8%
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
Counselors4.0 FTE
Per 311 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 30 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 87.6%
Hispanic or Latino 5.4%
Asian 3.2%
Two or More 2.2%
African American 1.6%
American Indian / Alaska Native 0.1%
Largest group: White at 87.6% of enrollment.
Student-body diversity index 22.8/100
Simpson diversity index - at 22.8, South Lyon High School is less mixed than the Michigan school average of 36.2.
Programs
AP courses offered 18
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 South Lyon High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| South Lyon East High School | Similar size | Similar economic need | Higher S:T ratio |
| Millennium Middle School | Similar size | Similar economic need | Higher S:T ratio |
| Centennial Middle School | Smaller | Similar economic need | Similar S:T ratio |
| William a Pearson Elementary | Smaller | Similar economic need | Higher S:T ratio |
| Sharon J Hardy Elementary School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to South Lyon High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,049
- Students per teacher
- 20.2:1
- Resource Index
- 33/100
- Enrollment
- 898
- Students per teacher
- 18.7:1
- Resource Index
- 22/100
- 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 high 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 (~1,245 students)
Frequently asked questions about South Lyon High School
How many students attend South Lyon High School?
South Lyon High School has 1,245 students enrolled. It is a high school in South Lyon, MI. CCD year-over-year: 1,293 (2022-23) → 1,253 (2023-24), nearly flat (-40).
What is the student-teacher ratio at South Lyon High School?
The student-teacher ratio at South Lyon High School is 17.3:1, which is 1% lower than the Michigan average of 17.5:1 and 10% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at South Lyon High School?
14.5% of students at South Lyon High School are eligible for free lunch, compared to the Michigan average of 54.3%.
What is the racial and ethnic makeup of South Lyon High School?
The largest demographic group at South Lyon High School is White at 87.6% of enrollment, in South Lyon, MI.
What is the Resource Investment Index for South Lyon High School?
South Lyon High School has a Resource Investment Index of 32/100 (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 South Lyon High School rank among public schools in South Lyon?
By Resource Investment Index, South Lyon High School ranks #6 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 South Lyon High School, South Lyon Community Schools also operates South Lyon East High School (1,174 students), Millennium Middle School (1,049 students), and Centennial Middle School (898 students). See the South Lyon Community Schools district page for the complete list.