Enrollment
132
Minnesota · 2024-25 NCES data
Elementary school (grades K-5) · Saint Paul, MN
Cornerstone Montessori Elementary
Federal NCES profile for Cornerstone Montessori Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
2024-25 NCES dataElementary school (grades K-5)NCES 270036804523Charter school
👥 S:T ratio 34
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cornerstone Montessori Elementary earns 21/100 on the Resource Investment Index, with class sizes near the Minnesota median. It is also more racially and ethnically mixed than most Minnesota schools.
- #21 of 26
- elementary schools in Saint Paul · Resource Index
- 21
- Resource Index · Lower
- 16.5:1
- students per teacher
- 48.6%
- free-lunch eligible
Cornerstone Montessori Elementary has class sizes near the Minnesota median. Computed live against every Minnesota school reporting to NCES.
By Resource Investment Index, Cornerstone Montessori Elementary ranks #21 of 26 elementary schools in Saint Paul, MN.
School address
District: Cornerstone Montessori Elementary · Minnesota
NCES ID 270036804523 Verify on NCES CCD record →
Teachers (FTE)
8.0
Federal CCD staff survey
Students per teacher
16.5:1
vs 15.8:1 Minnesota avg
+4% vs state
Free-lunch eligible
48.6%
vs 42.8% Minnesota avg
+14% vs state
Student-teacher ratio in context
How Cornerstone Montessori Elementary compares with Minnesota and U.S. medians
What stands out at Cornerstone Montessori Elementary
Cornerstone Montessori Elementary is a mid-sized charter elementary school in Saint Paul, Minnesota, enrolling 132 students.
Class loads run somewhat heavier than typical: 16.5:1 puts it in the larger third of Minnesota schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 48.6% of students eligible for free meals.
With 132 students, its enrollment sits close to the Minnesota median campus size.
Its Resource Investment Index trails 93% of the 2,334 Minnesota schools with a score on record, one of the lower results on this measure.
Among 169 similarly sized, similarly resourced-need Minnesota schools statewide, it ranks #156, in the lower tier once campus size and economic need are matched.
Its student body is led by White (36%) and Hispanic or Latino (21%), more mixed than most schools in the state (diversity index 76/100).
Chronic absenteeism is elevated: 49.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Cornerstone Montessori Elementary is a single-school charter district, so Cornerstone Montessori Elementary 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
How Cornerstone Montessori Elementary compares
Cornerstone Montessori Elementary on the metrics families compare, against Minnesota and U.S. means.
| Metric | This school | vs Minnesota | Minnesota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.5:1 | ▲ 4% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 48.6% | ▲ 14% | 42.8% | 51.7% |
| Enrollment | 132 | top 65% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.5:1
Leaner classes than 34% of US schools, a middle-of-the-pack class size.
132
Bigger than 13% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
48.6%
free-lunch eligible
- 14% above the Minnesota average of 42.8%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
16.5:1
students per teacher
- 4% above state mean
Top 66% in Minnesota - lower ratio than 34% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
49.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$16,833
per pupil, district-wide
- above Minnesota avg of $15,270
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 36.4%
Hispanic or Latino 20.5%
African American 17.4%
Two or More 15.9%
Asian 9.8%
Largest group: White at 36.4% of enrollment.
Student-body diversity index 76.0/100
Simpson diversity index - at 76.0, Cornerstone Montessori Elementary is more mixed than the Minnesota school average of 42.8.
Programs
Funding & spending
District-wide per-pupil expenditure for Cornerstone Montessori Elementary, which includes Cornerstone Montessori Elementary.
$16,833
Per student
+10%
vs Minnesota
Avg $15,270
+1%
vs U.S.
Avg $16,593
Revenue mix
Local 4.2%
State 85.5%
Federal 10.3%
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.
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Minnesota, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~132 students)
Similar student-teacher ratio (~16.5:1)
Next steps
Verify locally before acting on Cornerstone Montessori Elementary's federal record.
- Compare Cornerstone Montessori Elementary against another school. Compare schools
- Cornerstone Montessori Elementary's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Cornerstone Montessori Elementary
How many students attend Cornerstone Montessori Elementary?
Cornerstone Montessori Elementary has 132 students enrolled. It is an elementary school in Saint Paul, MN.
What is the student-teacher ratio at Cornerstone Montessori Elementary?
The student-teacher ratio at Cornerstone Montessori Elementary is 16.5:1, which is 4% higher than the Minnesota average of 15.8:1 and 5% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Cornerstone Montessori Elementary?
48.6% of students at Cornerstone Montessori Elementary are eligible for free lunch, compared to the Minnesota average of 42.8%.
What is the racial and ethnic makeup of Cornerstone Montessori Elementary?
The largest demographic group at Cornerstone Montessori Elementary is White at 36.4% of enrollment, in Saint Paul, MN. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 76.0/100.
What is the Resource Investment Index for Cornerstone Montessori Elementary?
Cornerstone Montessori Elementary has a Resource Investment Index of 21/100 (lower 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).
How does Cornerstone Montessori Elementary rank among elementary schools in Saint Paul?
By Resource Investment Index, Cornerstone Montessori Elementary ranks #21 of 26 elementary schools in Saint Paul, MN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Saint Paul on the city page.
Is Cornerstone Montessori Elementary a good school?
Cornerstone Montessori Elementary earns 21/100 on the Resource Investment Index, with class sizes near the Minnesota median. It is also more racially and ethnically mixed than most Minnesota 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.
What other schools are in Cornerstone Montessori Elementary?
None; Cornerstone Montessori Elementary is a single-school charter district, and Cornerstone Montessori Elementary is its only campus.
Related tools
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.