Enrollment
660
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Rockford, IL
Federal NCES profile for Montessori Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 19/100.
The verdict
Montessori Elementary School earns 19/100 on the Resource Investment Index, with class sizes larger than 89% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
Montessori Elementary School has class sizes larger than 89% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Montessori Elementary School ranks #2 of 6 schools in Rockford, IL.
NCES ID 173451001589 Verify on NCES CCD record →
Enrollment
660
Illinois · 2024-25 NCES data
Teachers (FTE)
38.0
Federal CCD staff survey
Students per teacher
17.4:1
vs 14:1 Illinois avg
+24% vs state
How Montessori Elementary School compares with Illinois and U.S. medians
Larger classes than state median
17.4:1 - 3.4 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Montessori Elementary School is a mid-sized combined-grade school in Rockford, Illinois, enrolling 660 students.
Class loads run heavy: 17.4:1 is larger than about 89% of Illinois schools and 24% above the 14:1 state mean, so each teacher carries more students than is typical.
Enrollment of 660 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index trails 97% of the 3,845 Illinois schools with a score on record, one of the lower results on this measure.
Its student body is led by White (51%) and Hispanic or Latino (19%), more mixed than most schools in the state (diversity index 66/100).
Counselor access is stretched at roughly 1320 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 33.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Rockford's public schools, it stands alongside Fairview Early Childhood Center (538 students): Montessori Elementary School is larger than that campus by headcount and runs leaner classes (17.4:1 vs 25.6:1).
Rockford Sd 205 also operates Guilford High School (2,216 students) and Jefferson High School (2,173 students) alongside Montessori Elementary 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
Montessori Elementary 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 | 17.4:1 | ▲ 24% | 14:1 | 15.7:1 |
| Enrollment | 660 | top 16% | - | - |
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 50.8% of enrollment.
Simpson diversity index - at 66.4, Montessori Elementary School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Rockford Sd 205, which includes Montessori Elementary 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 |
|---|---|---|---|
| Guilford High School | Larger | No free-lunch data | Higher S:T ratio |
| Jefferson High School | Larger | No free-lunch data | Higher S:T ratio |
| Auburn High School | Larger | No free-lunch data | Higher S:T ratio |
| Rockford East High School | Larger | No free-lunch data | Higher S:T ratio |
| Rockford Envrnmntl Science Acad | Larger | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Montessori Elementary School's own figures; each column derives from NCES Common Core of Data.
5 comparable other schools (grades Mixed) serving the same city.
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 Montessori Elementary 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.
Montessori Elementary School has 660 students enrolled. It is a public school in Rockford, IL.
The student-teacher ratio at Montessori Elementary School is 17.4:1, which is 24% higher than the Illinois average of 14:1 and 11% higher than the national average of 15.7:1.
The largest demographic group at Montessori Elementary School is White at 50.8% of enrollment, in Rockford, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.4/100.
Montessori Elementary School has a Resource Investment Index of 19/100 (lower reported resources relative to schools nationally) based on 4 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, Montessori Elementary School ranks #2 of 6 schools in Rockford, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Rockford on the city page.
Montessori Elementary School earns 19/100 on the Resource Investment Index, with class sizes larger than 89% of Illinois schools. It is also more 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 Montessori Elementary School, Rockford Sd 205 also operates Guilford High School (2,216 students), Jefferson High School (2,173 students), and Auburn High School (1,957 students). See the Rockford Sd 205 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, “Montessori Elementary School, Rockford 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/montessori-elementary-school-il
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