Enrollment
204
Illinois · 2024-25 NCES data
High school (grades 9-12) · Niantic, IL
Sangamon Valley High School
Federal NCES profile for Sangamon Valley High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 170032405625
👥 S:T ratio 52
📚 AP courses 15
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sangamon Valley High School earns 24/100 on the Resource Investment Index, even as it posts class sizes smaller than 71% of Illinois schools.
- 24
- Resource Index · Lower
- 12:1
- small classes for Illinois
- 204
- students enrolled
Sangamon Valley High School has class sizes smaller than 71% of Illinois schools. Computed live against every Illinois school reporting to NCES.
School address
District: Sangamon Valley Cusd 9 · Illinois
NCES ID 170032405625 Verify on NCES CCD record →
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
12:1
vs 14:1 Illinois avg
-14% vs state
Student-teacher ratio in context
How Sangamon Valley High School compares with Illinois and U.S. medians
What stands out at Sangamon Valley High School
Sangamon Valley High School is a mid-sized high school in Niantic, Illinois, enrolling 204 students.
Class sizes run a bit leaner than typical: 12:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 204 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is predominantly White (90% of enrollment) (diversity index 19/100).
On the academic-pipeline side it reports 3 Advanced Placement courses.
Chronic absenteeism is elevated: 41.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 46 in- and out-of-school suspensions were reported for 204 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 6 expulsions at this campus for 2021-22.
Sangamon Valley Cusd 9 also operates Sangamon Valley Primary School (170 students) and Sangamon Valley Middle School (145 students) alongside Sangamon Valley 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 Sangamon Valley High School compares
Sangamon Valley 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 | 12:1 | ▼ 14% | 14:1 | 15.7:1 |
| Enrollment | 204 | top 81% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
204
Bigger than 20% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
12:1
students per teacher
- 14% below state mean
Top 29% in Illinois - lower ratio than 71% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
41.2%
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
$14,936
per pupil, district-wide
- below Illinois avg of $17,042
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
18
in-school suspensions + 28 out-of-school
Suspension rate: 8.8 per 100 students. Combined in-school and out-of-school rate: 22.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 6 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 89.7%
Two or More 4.4%
Hispanic or Latino 3.9%
Asian 1.5%
African American 0.5%
Largest group: White at 89.7% of enrollment.
Student-body diversity index 19.2/100
Simpson diversity index - at 19.2, Sangamon Valley High School is less mixed than the Illinois school average of 38.9.
Programs
AP courses offered 3
Funding & spending
District-wide per-pupil expenditure for Sangamon Valley Cusd 9, which includes Sangamon Valley High School.
$14,936
Per student
-12%
vs Illinois
Avg $17,042
-10%
vs U.S.
Avg $16,593
Revenue mix
Local 56.5%
State 32.4%
Federal 11.0%
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 Sangamon Valley High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sangamon Valley Primary School | Similar size | No free-lunch data | Higher S:T ratio |
| Sangamon Valley Middle School | Smaller | No free-lunch data | Similar S:T ratio |
| Sangamon Valley Intermediate Sch | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Sangamon Valley High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 170
- Students per teacher
- 14.2:1
- Resource Index
- 49/100
- Enrollment
- 145
- Students per teacher
- 11.2:1
- Resource Index
- 44/100
- Enrollment
- 115
- Students per teacher
- 11.5:1
- Resource Index
- 58/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~204 students)
Similar student-teacher ratio (~12:1)
Next steps
Verify locally before acting on Sangamon Valley High School's federal record.
- Compare Sangamon Valley High School against another school. Compare schools
- Sangamon Valley Cusd 9'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 Sangamon Valley High School
How many students attend Sangamon Valley High School?
Sangamon Valley High School has 204 students enrolled. It is a high school in Niantic, IL.
What is the student-teacher ratio at Sangamon Valley High School?
The student-teacher ratio at Sangamon Valley High School is 12:1, which is 14% lower than the Illinois average of 14:1 and 24% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Sangamon Valley High School?
The largest demographic group at Sangamon Valley High School is White at 89.7% of enrollment, in Niantic, IL.
What is the Resource Investment Index for Sangamon Valley High School?
Sangamon Valley High School has a Resource Investment Index of 24/100 (lower 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).
Is Sangamon Valley High School a good school?
Sangamon Valley High School earns 24/100 on the Resource Investment Index, even as it posts class sizes smaller than 71% of 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 Sangamon Valley Cusd 9?
Besides Sangamon Valley High School, Sangamon Valley Cusd 9 also operates Sangamon Valley Primary School (170 students), Sangamon Valley Middle School (145 students), and Sangamon Valley Intermediate Sch (115 students). See the Sangamon Valley Cusd 9 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.