Enrollment
328
Illinois · 2024-25 NCES data
High school (grades 9-12) · Gillespie, IL
Federal NCES profile for Gillespie High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 18/100.
The verdict
Gillespie High School earns 18/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also less racially and ethnically mixed than most Illinois schools.
Gillespie High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Gillespie High School ranks #3 of 3 public schools in Gillespie, IL.
NCES ID 171668001971 Verify on NCES CCD record →
Enrollment
328
Illinois · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
12.6:1
vs 14:1 Illinois avg
-10% vs state
How Gillespie 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.
Gillespie High School is a mid-sized high school in Gillespie, Illinois, enrolling 328 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.
With 328 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index trails 96% of the 3,845 Illinois schools with a score on record, one of the lower results on this measure.
Its student body is predominantly White (95% of enrollment), among the less diverse in the state (diversity index 10/100).
On the academic-pipeline side it reports 2 Advanced Placement courses.
Counselor access is stretched at roughly 656 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 43.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 15.7% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Gillespie Cusd 7 also operates Ben-Gil Elementary School (523 students) and Gillespie Middle School (244 students) alongside Gillespie 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
Gillespie 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 | 328 | top 58% | - | - |
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 95.1% of enrollment.
Simpson diversity index - at 9.5, Gillespie High School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Gillespie Cusd 7, which includes Gillespie 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 |
|---|---|---|---|
| Ben-Gil Elementary School | Larger | No free-lunch data | Similar S:T ratio |
| Gillespie Middle School | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Gillespie 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 Gillespie 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.
Gillespie High School has 328 students enrolled. It is a high school in Gillespie, IL.
The student-teacher ratio at Gillespie 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 Gillespie High School is White at 95.1% of enrollment, in Gillespie, IL.
Gillespie High School has a Resource Investment Index of 18/100 (lower reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Gillespie High School ranks #3 of 3 public schools in Gillespie, 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 Gillespie on the city page.
Gillespie High School earns 18/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also less 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.
Besides Gillespie High School, Gillespie Cusd 7 also operates Ben-Gil Elementary School (523 students) and Gillespie Middle School (244 students). See the Gillespie Cusd 7 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.
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PlainSchools, “Gillespie High School, Gillespie 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/gillespie-high-school-il
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