Enrollment
134
Arizona · 2024-25 NCES data
Elementary school (grades K-5) · Tucson, AZ
Federal NCES profile for Montessori Schoolhouse, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Montessori Schoolhouse earns 47/100 on the Resource Investment Index on federal resource data.
By Resource Investment Index, Montessori Schoolhouse ranks #3 of 54 elementary schools in Tucson, AZ.
NCES ID 040012601778 Verify on NCES CCD record →
Enrollment
134
Arizona · 2024-25 NCES data
Montessori Schoolhouse is a mid-sized charter elementary school in Tucson, Arizona, enrolling 134 students.
Enrollment of 134 puts it in the smaller third of Arizona schools by headcount.
Its Resource Investment Index lands in the upper third of 2,064 scored Arizona schools.
Its student body is led by Hispanic or Latino (46%) and White (36%) (diversity index 64/100).
Counselor coverage is strong, about 179 students per counselor, inside the American School Counselor Association's recommended 250:1.
The surrounding Montessori Schoolhouse of Tucson Inc. (4428) spends $7,789 per pupil, 41% below the Arizona average, a leaner-resourced district than most.
Among Tucson's elementary schools, it stands alongside Los Amigos Elementary School (613 students): Montessori Schoolhouse is smaller than that campus by headcount.
Its district, Montessori Schoolhouse of Tucson Inc. (4428), also runs Montessori Schoolhouse (19 students).
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 Schoolhouse on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Enrollment | 134 | top 78% | - | - |
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: Hispanic or Latino at 45.5% of enrollment.
Simpson diversity index - at 64.2, Montessori Schoolhouse is more mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Montessori Schoolhouse of Tucson Inc. (4428), which includes Montessori Schoolhouse.
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 |
|---|---|---|---|
| Montessori Schoolhouse | Smaller | No free-lunch data | No ratio data |
Comparisons are relative to Montessori Schoolhouse's own figures; each column derives from NCES Common Core of Data.
5 comparable elementary schools (grades K-5) serving the same city.
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Montessori Schoolhouse'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 Schoolhouse has 134 students enrolled. It is an elementary school in Tucson, AZ.
The largest demographic group at Montessori Schoolhouse is Hispanic or Latino at 45.5% of enrollment, in Tucson, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.2/100.
Montessori Schoolhouse has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 2 factors: student-teacher ratio, counselor availability. 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, Montessori Schoolhouse ranks #3 of 54 elementary schools in Tucson, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Tucson on the city page.
Montessori Schoolhouse earns 47/100 on the Resource Investment Index on federal resource data. 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 Schoolhouse, Montessori Schoolhouse of Tucson Inc. (4428) also operates Montessori Schoolhouse (19 students). See the Montessori Schoolhouse of Tucson Inc. (4428) 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.