Enrollment
312
Connecticut · 2024-25 NCES data
Other / mixed grade configuration · New Haven, CT
Federal NCES profile for Elm City Montessori School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Elm City Montessori School earns 55/100 on the Resource Investment Index on federal resource data. It is also more racially and ethnically mixed than most Connecticut schools.
By Resource Investment Index, Elm City Montessori School ranks #2 of 25 schools in New Haven, CT.
NCES ID 090021601683 Verify on NCES CCD record →
Enrollment
312
Connecticut · 2024-25 NCES data
Free-lunch eligible
39.9%
vs 36.4% Connecticut avg
+10% vs state
Elm City Montessori School is a mid-sized charter combined-grade school in New Haven, Connecticut, enrolling 312 students.
Economic need runs somewhat above the state's typical profile, with 39.9% of students eligible for free meals.
Enrollment of 312 puts it in the smaller third of Connecticut schools by headcount.
Its Resource Investment Index lands in the upper third of 1,003 scored Connecticut schools.
Against 178 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #44.
Its student body is led by White (33%) and Hispanic or Latino (28%), more mixed than most schools in the state (diversity index 73/100).
Attendance holds up well here: only 8.0% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Elm City Montessori School District spends $13,596 per pupil, 43% below the Connecticut average, a leaner-resourced district than most.
Among New Haven's public schools, it stands alongside Amistad Academy (1,105 students): Elm City Montessori School is smaller than that campus by headcount.
Elm City Montessori School District is a single-school charter district, so Elm City Montessori School operates independently rather than alongside district-mates.
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
Elm City Montessori School on the metrics families compare, against Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Free-lunch eligible | 39.9% | ▲ 10% | 36.4% | 51.7% |
| Enrollment | 312 | top 73% | - | - |
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 33.4% of enrollment.
Simpson diversity index - at 72.9, Elm City Montessori School is more mixed than the Connecticut school average of 50.5.
District-wide per-pupil expenditure for Elm City Montessori School District, which includes Elm City Montessori 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.
6 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Connecticut, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Elm City Montessori 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.
Elm City Montessori School has 312 students enrolled. It is a public school in New Haven, CT.
39.9% of students at Elm City Montessori School are eligible for free lunch, compared to the Connecticut average of 36.4%.
The largest demographic group at Elm City Montessori School is White at 33.4% of enrollment, in New Haven, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 72.9/100.
Elm City Montessori School has a Resource Investment Index of 55/100 (higher reported resources relative to schools nationally) based on 2 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
By Resource Investment Index, Elm City Montessori School ranks #2 of 25 schools in New Haven, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in New Haven on the city page.
Elm City Montessori School earns 55/100 on the Resource Investment Index on federal resource data. It is also more racially and ethnically mixed than most Connecticut 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.
None; Elm City Montessori School District is a single-school charter district, and Elm City Montessori School is its only campus.
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.