Enrollment
1,117
Illinois · 2024-25 NCES data
High school (grades 9-12) · Springfield, IL
Lanphier High School
Federal NCES profile for Lanphier High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 173708003829
👥 S:T ratio 44
📚 AP courses 75
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Lanphier High School earns 37/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also more racially and ethnically mixed than most Illinois schools.
- #1 of 3
- high schools in Springfield · Resource Index
- 37
- Resource Index · Typical
- 14.1:1
- students per teacher
- 1,117
- students enrolled
Lanphier High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Lanphier High School ranks #1 of 3 high schools in Springfield, IL.
School address
District: Springfield Sd 186 · Illinois
NCES ID 173708003829 Verify on NCES CCD record →
Teachers (FTE)
75.0
Federal CCD staff survey
Students per teacher
14.1:1
vs 14:1 Illinois avg
+1% vs state
Student-teacher ratio in context
How Lanphier High School compares with Illinois and U.S. medians
What stands out at Lanphier High School
Lanphier High School is a large high school in Springfield, Illinois, enrolling 1,117 students.
At 14.1:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
By headcount it is one of the larger campuses in Illinois, bigger than 94% of state schools at 1,117 students.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by African American (46%) and White (38%), more mixed than most schools in the state (diversity index 63/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Chronic absenteeism is elevated: 88.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Springfield Sd 186 spends $20,525 per pupil, 20% above the Illinois average, a better-resourced district than most.
Its district draws 18.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 578 in- and out-of-school suspensions were reported for 1,117 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Springfield's high schools, it stands alongside Springfield High School (1,308 students): Lanphier High School is smaller than that campus by headcount and runs leaner classes (14.1:1 vs 19.5:1).
Springfield Sd 186 also operates Springfield High School (1,308 students) and Springfield Southeast High Sch (1,229 students) alongside Lanphier High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Lanphier High School compares
Lanphier High School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.1:1 | ▲ 1% | 14:1 | 15.7:1 |
| Enrollment | 1,117 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.1:1
Leaner classes than 58% of US schools, a middle-of-the-pack class size.
1,117
Bigger than 93% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
14.1:1
students per teacher
- 1% above state mean
Top 58% in Illinois - lower ratio than 42% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
88.4%
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
$20,525
per pupil, district-wide
- above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
363
in-school suspensions + 215 out-of-school
Suspension rate: 32.5 per 100 students. Combined in-school and out-of-school rate: 51.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Overview
Enrollment 1,117 Top 6% in Illinois - larger than 94% of 3,845 state schools
Teachers (FTE) 75.0
Students per teacher 14.1:1 +1% vs state
Free-lunch eligible -
NCES ID 173708003829
Student demographics
African American 45.9%
White 37.6%
Two or More 13.6%
Hispanic or Latino 2.3%
Asian 0.4%
American Indian / Alaska Native 0.1%
Largest group: African American at 45.9% of enrollment.
Student-body diversity index 62.9/100
Simpson diversity index - at 62.9, Lanphier High School is more mixed than the Illinois school average of 38.9.
Programs & staff
AP courses offered 15
Counselors (FTE) 0.0
Discipline & special education
Chronically absent 88.4%
In-school suspensions 363
Out-of-school suspensions 215
Expulsions 2
Funding & spending
District-wide per-pupil expenditure for Springfield Sd 186, which includes Lanphier High School.
$20,525
Per student
+20%
vs Illinois
Avg $17,042
+24%
vs U.S.
Avg $16,593
Revenue mix
Local 46.0%
State 35.9%
Federal 18.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Lanphier High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Springfield High School | Similar size | No free-lunch data | Higher S:T ratio |
| Springfield Southeast High Sch | Similar size | No free-lunch data | Higher S:T ratio |
| Benjamin Franklin Middle School | Smaller | No free-lunch data | Similar S:T ratio |
| Early Learning Center | Smaller | No free-lunch data | Higher S:T ratio |
| Jefferson Middle School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Lanphier High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,308
- Students per teacher
- 19.5:1
- Resource Index
- 17/100
- Enrollment
- 1,229
- Students per teacher
- 15.6:1
- Resource Index
- 23/100
- Enrollment
- 709
- Students per teacher
- 13.7:1
- Resource Index
- 38/100
- Enrollment
- 549
- Students per teacher
- 17.3:1
- Resource Index
- 30/100
- Enrollment
- 517
- Students per teacher
- 13.5:1
- Resource Index
- 25/100
Similar high schools in Springfield
2 comparable high schools (grades 9-12) serving the same city.
Next steps
Verify locally before acting on Lanphier High School's federal record.
- Compare Lanphier High School against another school. Compare schools
- Springfield Sd 186's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Lanphier High School
How many students attend Lanphier High School?
Lanphier High School has 1,117 students enrolled. It is a high school in Springfield, IL.
What is the student-teacher ratio at Lanphier High School?
The student-teacher ratio at Lanphier High School is 14.1:1, which is 1% higher than the Illinois average of 14:1 and 10% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Lanphier High School?
The largest demographic group at Lanphier High School is African American at 45.9% of enrollment, in Springfield, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.9/100.
What is the Resource Investment Index for Lanphier High School?
Lanphier High School has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Lanphier High School rank among high schools in Springfield?
By Resource Investment Index, Lanphier High School ranks #1 of 3 high schools in Springfield, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Springfield on the city page.
Is Lanphier High School a good school?
Lanphier High School earns 37/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also more racially and ethnically mixed than most Illinois schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Springfield Sd 186?
Besides Lanphier High School, Springfield Sd 186 also operates Springfield High School (1,308 students), Springfield Southeast High Sch (1,229 students), and Benjamin Franklin Middle School (709 students). See the Springfield Sd 186 district page for the complete list.