Enrollment
489
Illinois · 2024-25 NCES data
High school (grades 9-12) · Monticello, IL
Monticello High School
Federal NCES profile for Monticello High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 29/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 172655002843
👥 S:T ratio 46
📚 AP courses 20
🌟 Gifted program 30
🎓 Counselors 7
📋 Attendance 45
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Monticello High School earns 29/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #3 of 3
- public schools in Monticello · Resource Index
- 29
- Resource Index · Lower
- 13.6:1
- students per teacher
- 489
- students enrolled
Monticello High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Monticello High School ranks #3 of 3 public schools in Monticello, IL.
School address
District: Monticello Cusd 25 · Illinois
NCES ID 172655002843 Verify on NCES CCD record →
Teachers (FTE)
36.0
Federal CCD staff survey
Students per teacher
13.6:1
vs 14:1 Illinois avg
-3% vs state
Student-teacher ratio in context
How Monticello High School compares with Illinois and U.S. medians
What stands out at Monticello High School
Monticello High School is a mid-sized high school in Monticello, Illinois, enrolling 489 students.
At 13.6:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
Enrollment of 489 puts it in the larger 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 (91% of enrollment) (diversity index 18/100).
On the academic-pipeline side it reports 4 Advanced Placement courses.
Counselor access is stretched at roughly 466 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 22.1% of students chronically absent per the 2021-22 civil-rights collection.
Monticello Cusd 25 also operates Washington School (543 students) and Monticello Middle School (405 students) alongside Monticello 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 Monticello High School compares
Monticello 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 | 13.6:1 | ▼ 3% | 14:1 | 15.7:1 |
| Enrollment | 489 | top 32% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.6:1
Leaner classes than 61% of US schools, a middle-of-the-pack class size.
489
Bigger than 60% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
13.6:1
students per teacher
- 3% below state mean
Top 51% in Illinois - lower ratio than 49% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
22.1%
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
$13,809
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
Counselors1.1 FTE
Per 466 students, the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 4 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 1.4 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 90.6%
African American 3.1%
Two or More 2.7%
Hispanic or Latino 2.5%
Asian 1.0%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 90.6% of enrollment.
Student-body diversity index 17.7/100
Simpson diversity index - at 17.7, Monticello High School is less mixed than the Illinois school average of 38.9.
Programs
AP courses offered 4
Funding & spending
District-wide per-pupil expenditure for Monticello Cusd 25, which includes Monticello High School.
$13,809
Per student
-19%
vs Illinois
Avg $17,042
-17%
vs U.S.
Avg $16,593
Revenue mix
Local 77.9%
State 16.5%
Federal 5.6%
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 Monticello High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Washington School | Similar size | No free-lunch data | Similar S:T ratio |
| Monticello Middle School | Similar size | No free-lunch data | Higher S:T ratio |
| White Heath Elem School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Monticello High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 543
- Students per teacher
- 13.9:1
- Resource Index
- 33/100
- Enrollment
- 405
- Students per teacher
- 15.6:1
- Resource Index
- 38/100
- Enrollment
- 270
- Students per teacher
- 14.2:1
- Resource Index
- 42/100
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 (~489 students)
Next steps
Verify locally before acting on Monticello High School's federal record.
- Compare Monticello High School against another school. Compare schools
- Monticello Cusd 25'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 Monticello High School
How many students attend Monticello High School?
Monticello High School has 489 students enrolled. It is a high school in Monticello, IL.
What is the student-teacher ratio at Monticello High School?
The student-teacher ratio at Monticello High School is 13.6:1, which is 3% lower than the Illinois average of 14:1 and 13% 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 Monticello High School?
The largest demographic group at Monticello High School is White at 90.6% of enrollment, in Monticello, IL.
What is the Resource Investment Index for Monticello High School?
Monticello High School has a Resource Investment Index of 29/100 (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).
How does Monticello High School rank among public schools in Monticello?
By Resource Investment Index, Monticello High School ranks #3 of 3 public schools in Monticello, 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 Monticello on the city page.
Is Monticello High School a good school?
Monticello High School earns 29/100 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.
What other schools are in Monticello Cusd 25?
Besides Monticello High School, Monticello Cusd 25 also operates Washington School (543 students), Monticello Middle School (405 students), and White Heath Elem School (270 students). See the Monticello Cusd 25 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.