Enrollment
113
Illinois · 2024-25 NCES data
High school (grades 9-12) · Saint Elmo, IL
Federal NCES profile for St Elmo Sr High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
The verdict
St Elmo Sr High School earns 39/100 on the Resource Investment Index, with class sizes near the Illinois median.
St Elmo Sr High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, St Elmo Sr High School ranks #3 of 3 public schools in Saint Elmo, IL.
NCES ID 173723003864 Verify on NCES CCD record →
Enrollment
113
Illinois · 2024-25 NCES data
Teachers (FTE)
9.0
Federal CCD staff survey
Students per teacher
12.6:1
vs 14:1 Illinois avg
-10% vs state
How St Elmo Sr High School compares with Illinois and U.S. medians
At or below state median
12.6:1 - 1.4 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
St Elmo Sr High School is a small high school in Saint Elmo, Illinois, enrolling 113 students.
Class sizes run a bit leaner than typical: 12.6:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
This is a small campus: fewer students than 94% of Illinois schools, with 113 enrolled.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is predominantly White (92% of enrollment) (diversity index 15/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 113 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 28.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 16.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 87 in- and out-of-school suspensions were reported for 113 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 4 expulsions at this campus for 2021-22.
St Elmo Cusd 202 also operates St Elmo Elem School (222 students) and St Elmo Jr High School (55 students) alongside St Elmo Sr 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
St Elmo Sr 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 | 12.6:1 | ▼ 10% | 14:1 | 15.7:1 |
| Enrollment | 113 | top 94% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 92.0% of enrollment.
Simpson diversity index - at 14.7, St Elmo Sr High School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for St Elmo Cusd 202, which includes St Elmo Sr High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| St Elmo Elem School | Larger | No free-lunch data | Similar S:T ratio |
| St Elmo Jr High School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to St Elmo Sr High School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on St Elmo Sr High School's federal record.
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.
St Elmo Sr High School has 113 students enrolled. It is a high school in Saint Elmo, IL.
The student-teacher ratio at St Elmo Sr High School is 12.6:1, which is 10% lower than the Illinois average of 14:1 and 20% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at St Elmo Sr High School is White at 92.0% of enrollment, in Saint Elmo, IL.
St Elmo Sr High School has a Resource Investment Index of 39/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, St Elmo Sr High School ranks #3 of 3 public schools in Saint Elmo, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Saint Elmo on the city page.
St Elmo Sr High School earns 39/100 on the Resource Investment Index, with class sizes near the Illinois median. 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.
Besides St Elmo Sr High School, St Elmo Cusd 202 also operates St Elmo Elem School (222 students) and St Elmo Jr High School (55 students). See the St Elmo Cusd 202 district page for the complete list.
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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “St Elmo Sr High School, Saint Elmo IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/st-elmo-sr-high-school-il/
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.