Enrollment
491
Illinois · 2024-25 NCES data
High school (grades 9-12) · Harrisburg, IL
Federal NCES profile for Harrisburg High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
The verdict
Harrisburg High School earns 34/100 on the Resource Investment Index, with class sizes smaller than 78% of Illinois schools.
Harrisburg High School has class sizes smaller than 78% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Harrisburg High School ranks #3 of 6 public schools in Harrisburg, IL.
NCES ID 171827002113 Verify on NCES CCD record →
Enrollment
491
Illinois · 2024-25 NCES data
Teachers (FTE)
43.0
Federal CCD staff survey
Students per teacher
11.4:1
vs 14:1 Illinois avg
-19% vs state
How Harrisburg High School compares with Illinois and U.S. medians
Smaller classes than state median
11.4:1 - 2.6 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Harrisburg High School is a mid-sized high school in Harrisburg, Illinois, enrolling 491 students.
Class sizes run a bit leaner than typical: 11.4:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 491 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (78%) and Two or More (10%) (diversity index 37/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 123 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 48.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Harrisburg Cusd 3 also operates West Side Primary School (400 students) and East Side Intermediate School (397 students) alongside Harrisburg 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
Harrisburg 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 | 11.4:1 | ▼ 19% | 14:1 | 15.7:1 |
| Enrollment | 491 | top 32% | - | - |
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 78.4% of enrollment.
Simpson diversity index - at 37.0, Harrisburg High School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Harrisburg Cusd 3, which includes Harrisburg 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 |
|---|---|---|---|
| West Side Primary School | Similar size | No free-lunch data | Similar S:T ratio |
| East Side Intermediate School | Similar size | No free-lunch data | Similar S:T ratio |
| Harrisburg Middle School | Similar size | No free-lunch data | Similar S:T ratio |
| Bulldog Early Learning Academy | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Harrisburg 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 Harrisburg 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.
Harrisburg High School has 491 students enrolled. It is a high school in Harrisburg, IL.
The student-teacher ratio at Harrisburg High School is 11.4:1, which is 19% lower than the Illinois average of 14:1 and 27% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Harrisburg High School is White at 78.4% of enrollment, in Harrisburg, IL.
Harrisburg High School has a Resource Investment Index of 34/100 (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, Harrisburg High School ranks #3 of 6 public schools in Harrisburg, 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 Harrisburg on the city page.
Harrisburg High School earns 34/100 on the Resource Investment Index, with class sizes smaller than 78% 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.
Besides Harrisburg High School, Harrisburg Cusd 3 also operates West Side Primary School (400 students), East Side Intermediate School (397 students), and Harrisburg Middle School (382 students). See the Harrisburg Cusd 3 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, “Harrisburg High School, Harrisburg 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/harrisburg-high-school-il
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