Keystone Montessori Charter School Inc. (10878)

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. District totals are aggregated directly from the schools reporting under this district in the source records. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error. Data current as of August 2026.

Phoenix, Arizona - 1 schools

At $22,933 per pupil, Keystone Montessori Charter School Inc. (10878) ranks #53 of 633 Arizona districts by per-pupil spending (Arizona districts). NCES F-33 finance data.

179
Total Enrollment
1
Schools
$22,933
Per-Pupil Spending
Combined
School Types

District-Level NCES Analysis

Keystone Montessori Charter School Inc. (10878) operates 1 public schools serving 179 students, placing it among the smallest districts in Arizona. The school portfolio breaks down into 1 combined schools, a small enough portfolio that most families will interact with nearly every campus in the district at some point. These enrollment and school figures come from the NCES Common Core of Data (CCD) 2024-25 release, and the district is based in Maricopa County.

Per-pupil expenditure runs $22,933 according to the NCES F-33 School District Finance Survey, among the top 64 of 633 Arizona districts by per-pupil spending. See how Arizona compares in our national per-pupil spending analysis. The funding mix is 37.8% local, 54.9% state, and 7.3% federal, a state-revenue-heavy mix that insulates the district somewhat from local property-tax volatility, though it ties funding to state budget cycles.

. Demographically, the student body averages 45.3% White, 32.0% Hispanic or Latino, 5.4% Asian across the district's schools.

Its largest campus is Keystone Montessori Charter School, enrolling 203 students (100% of the district's total enrollment).

Enrollment across the district's NCES-reporting campuses grew 10.1% between 2022-23 and 2023-24 (179 to 197 students), per the NCES Common Core of Data annual universe files.

Of the district's $4,391,000 in reported FY2023 expenditures, 64.1% went to instruction, 29.4% to support services, and 4.3% to capital outlay, a fairly typical instruction/support/capital split for a public school district. Figures come from the NCES F-33 School District Finance Survey's function-level breakdown, not the aggregate per-pupil figure above.

Keystone Montessori Charter School accounts for 100.0% of all Keystone Montessori Charter School Inc. (10878) student enrollment

That is an overwhelming concentration, leaving the rest of Keystone Montessori Charter School Inc. (10878) a distant remainder — means Keystone Montessori Charter School Inc. (10878)-wide averages can mask substantial variation outside the largest entity. Grade band: combined. The share measures enrollment concentration only; it does not establish how the district allocates programs, capital, or staff. Because it contains a majority of the affected population, enrollment-weighted aggregates will sit closer to this entity's reported fields than to those of smaller peers; an unweighted entity count answers a different question.

Source: NCES Common Core of Data

Where does the funding come from?

7.3%
Federal
54.9%
State
37.8%
Local

Student Demographics

Average demographic composition across 1 schools in Keystone Montessori Charter School Inc. (10878).

White 45.3%
Hispanic or Latino 32.0%
African American 4.4%
Asian 5.4%
Multiracial 12.3%

Source: NCES CCD School Membership 2024-25.

Schools in Keystone Montessori Charter School Inc. (10878)

School Enrollment
Keystone Montessori Charter School
Charter
203

How Keystone Montessori Charter School Inc. (10878) Compares to Similar-Size Districts

The Arizona districts closest to this one in total enrollment.

District Enrollment Spending Funding Mix
Peach Springs Unified District (4369) Similar size Higher spending Less locally funded
Edkey Inc. - Redwood Academy (81043) Similar size Lower spending Less locally funded
Hirsch Academy a Challenge Foundation (91275) Similar size Lower spending Less locally funded
Madison Highland Prep Phoenix (1001521) Similar size Lower spending No revenue-mix data
Montessori Day Public Schools Chartered Inc. (4359) Similar size Lower spending Less locally funded

Comparisons are relative to Keystone Montessori Charter School Inc. (10878)'s own figures; each column derives from NCES Common Core of Data and the F-33 Finance Survey.

Nearby Districts in Arizona

Top districts in the same state, compare side-by-side for enrollment, spending, and demographics.

Nationwide districts with similar enrollment or spending

Out-of-state peers matched by enrollment and by per-pupil expenditure, not the same-state lists above.

Compare Keystone Montessori Charter School Inc. (10878)

See how this district compares to others in enrollment, spending, demographics, and academic resources.

Compare vs Mesa Unified District (4235) →

Frequently Asked Questions

How many schools are in Keystone Montessori Charter School Inc. (10878)?

Keystone Montessori Charter School Inc. (10878) has 1 school, including 1 combined. Total enrollment is 179 students.

How much does Keystone Montessori Charter School Inc. (10878) spend per student?

Keystone Montessori Charter School Inc. (10878) spends $22,933 per student.

What is the demographic composition of Keystone Montessori Charter School Inc. (10878)?

Keystone Montessori Charter School Inc. (10878) students are 45.3% White, 32.0% Hispanic or Latino, 5.4% Asian, 4.4% African American, averaged across 1 school. Source: NCES CCD Membership 2024-25.