Enrollment
2,214
Illinois · 2024-25 NCES data
High school (grades 9-12) · Mchenry, IL
Mchenry Community High School
Federal NCES profile for Mchenry Community High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 172532006833
👥 S:T ratio 37
📚 AP courses 85
🌟 Gifted program 30
🎓 Counselors 51
📋 Attendance 14
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mchenry Community High School earns 43/100 on the Resource Investment Index, with class sizes larger than 79% of Illinois schools. It is also one of the largest schools in Illinois.
- #3 of 3
- public schools in Mchenry · Resource Index
- 43
- Resource Index · Typical
- 15.8:1
- large classes for Illinois
- 2,214
- students enrolled
Mchenry Community High School has class sizes larger than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Mchenry Community High School ranks #3 of 3 public schools in Mchenry, IL.
School address
District: Mchenry Chsd 156 · Illinois
NCES ID 172532006833 Verify on NCES CCD record →
Teachers (FTE)
141.0
Federal CCD staff survey
Students per teacher
15.8:1
vs 14:1 Illinois avg
+13% vs state
Student-teacher ratio in context
How Mchenry Community High School compares with Illinois and U.S. medians
What stands out at Mchenry Community High School
Mchenry Community High School is a large high school in Mchenry, Illinois, enrolling 2,214 students.
Class loads run somewhat heavier than typical: 15.8:1 puts it in the larger third of Illinois schools by student-teacher ratio.
By headcount it is one of the larger campuses in Illinois, bigger than 98% of state schools at 2,214 students.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is led by White (68%) and Hispanic or Latino (27%) (diversity index 46/100).
On the academic-pipeline side it reports 17 Advanced Placement courses.
Counselor coverage is strong, about 246 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 34.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Mchenry Chsd 156 operates only this one school, so Mchenry Community High School has no district-mates to compare against locally. At 2,214 students, it is also among the largest single-school districts in Illinois, well beyond the enrollment of a typical standalone charter.
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 Mchenry Community High School compares
Mchenry Community 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 | 15.8:1 | ▲ 13% | 14:1 | 15.7:1 |
| Enrollment | 2,214 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.8:1
Leaner classes than 41% of US schools, a middle-of-the-pack class size.
2,214
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
15.8:1
students per teacher
- 13% above state mean
Top 79% in Illinois - lower ratio than 21% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
34.3%
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
$16,957
per pupil, district-wide
- below Illinois avg of $17,042
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors9.0 FTE
Per 246 students, the combined health-and-guidance staffing load for this school.
Discipline context
244
in-school suspensions + 123 out-of-school
Suspension rate: 11.0 per 100 students. Combined in-school and out-of-school rate: 16.6 per 100 students. Reported via the Civil Rights Data Collection.
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 67.9%
Hispanic or Latino 27.2%
Two or More 2.2%
African American 1.3%
Asian 0.9%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 67.9% of enrollment.
Student-body diversity index 46.4/100
Simpson diversity index - at 46.4, Mchenry Community High School is more mixed than the Illinois school average of 38.9.
Programs
AP courses offered 17
Funding & spending
District-wide per-pupil expenditure for Mchenry Chsd 156, which includes Mchenry Community High School.
$16,957
Per student
0%
vs Illinois
Avg $17,042
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 60.3%
State 30.0%
Federal 9.7%
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.
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 (~2,214 students)
Next steps
Verify locally before acting on Mchenry Community High School's federal record.
- Compare Mchenry Community High School against another school. Compare schools
- Mchenry Chsd 156'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 Mchenry Community High School
How many students attend Mchenry Community High School?
Mchenry Community High School has 2,214 students enrolled. It is a high school in Mchenry, IL.
What is the student-teacher ratio at Mchenry Community High School?
The student-teacher ratio at Mchenry Community High School is 15.8:1, which is 13% higher than the Illinois average of 14:1 and 1% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Mchenry Community High School?
The largest demographic group at Mchenry Community High School is White at 67.9% of enrollment, in Mchenry, IL.
What is the Resource Investment Index for Mchenry Community High School?
Mchenry Community High School has a Resource Investment Index of 43/100 (typical 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).
How does Mchenry Community High School rank among public schools in Mchenry?
By Resource Investment Index, Mchenry Community High School ranks #3 of 3 public schools in Mchenry, 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 Mchenry on the city page.
Is Mchenry Community High School a good school?
Mchenry Community High School earns 43/100 on the Resource Investment Index, with class sizes larger than 79% of Illinois schools. It is also one of the largest schools in Illinois. 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 Mchenry Chsd 156?
None reported; Mchenry Chsd 156 operates only Mchenry Community High School as a public school district in NCES's records.
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.