Enrollment
405
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Monticello, IL
Federal NCES profile for Monticello Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Monticello Middle School earns 38/100 on the Resource Investment Index, with class sizes larger than 76% of Illinois schools.
Monticello Middle School has class sizes larger than 76% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Monticello Middle School ranks #1 of 3 public schools in Monticello, IL.
NCES ID 172655005715 Verify on NCES CCD record →
Enrollment
405
Illinois · 2024-25 NCES data
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
15.6:1
vs 14:1 Illinois avg
+11% vs state
How Monticello Middle School compares with Illinois and U.S. medians
Slightly above state median
15.6:1 - 1.6 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Monticello Middle School is a mid-sized middle school in Monticello, Illinois, enrolling 405 students.
Class loads run somewhat heavier than typical: 15.6:1 puts it in the larger third of Illinois schools by student-teacher ratio.
With 405 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is predominantly White (92% of enrollment) (diversity index 16/100).
Attendance runs somewhat below the norm, with 21.2% of students chronically absent per the 2021-22 civil-rights collection.
Monticello Cusd 25 also operates Washington School (543 students) and Monticello High School (489 students) alongside Monticello Middle 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
Monticello Middle 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 | 15.6:1 | ▲ 11% | 14:1 | 15.7:1 |
| Enrollment | 405 | top 45% | - | - |
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 91.6% of enrollment.
Simpson diversity index - at 15.9, Monticello Middle School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Monticello Cusd 25, which includes Monticello Middle 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 |
|---|---|---|---|
| Washington School | Larger | No free-lunch data | Lower S:T ratio |
| Monticello High School | Similar size | No free-lunch data | Lower S:T ratio |
| White Heath Elem School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Monticello Middle 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 Monticello Middle 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.
Monticello Middle School has 405 students enrolled. It is a middle school in Monticello, IL.
The student-teacher ratio at Monticello Middle School is 15.6:1, which is 11% higher than the Illinois average of 14:1 and 1% lower than the national average of 15.7:1.
The largest demographic group at Monticello Middle School is White at 91.6% of enrollment, in Monticello, IL.
Monticello Middle School has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Monticello Middle School ranks #1 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.
Monticello Middle School earns 38/100 on the Resource Investment Index, with class sizes larger than 76% 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 Monticello Middle School, Monticello Cusd 25 also operates Washington School (543 students), Monticello High School (489 students), and White Heath Elem School (270 students). See the Monticello Cusd 25 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, “Monticello Middle School, Monticello 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/monticello-middle-school-il
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