Enrollment
480
New York · 2024-25 NCES data
Other / mixed grade configuration · Calcium, NY
Calcium Primary School
Federal NCES profile for Calcium Primary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataOther / mixed grade configurationNCES 361530004800
👥 S:T ratio 56
🌟 Gifted program 30
🎓 Counselors 44
📋 Attendance 12
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Calcium Primary School earns 35/100 on the Resource Investment Index, with class sizes near the New York median.
- 35
- Resource Index · Typical
- 10.9:1
- students per teacher
- 30.1%
- free-lunch eligible
- 480
- students enrolled
Calcium Primary School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
School address
District: Indian River Central School District · New York
NCES ID 361530004800 Verify on NCES CCD record →
Teachers (FTE)
44.0
Federal CCD staff survey
Students per teacher
10.9:1
vs 11.8:1 New York avg
-8% vs state
Free-lunch eligible
30.1%
vs 56.2% New York avg
-46% vs state
Student-teacher ratio in context
How Calcium Primary School compares with New York and U.S. medians
What stands out at Calcium Primary School
Calcium Primary School is a mid-sized combined-grade school in Calcium, New York, enrolling 480 students.
At 10.9:1, its student-teacher ratio sits close to the New York median, within a few percentage points of the 11.8:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 30.1% of students eligible for free meals.
With 480 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index sits near the middle of the pack among 4,801 scored New York schools.
Among 884 similarly sized, similarly resourced-need New York schools statewide, it ranks #659, in the lower tier once campus size and economic need are matched.
Its student body is led by White (54%) and Hispanic or Latino (23%) (diversity index 63/100).
Counselor coverage runs a bit thin, about 282 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 35.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 30.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Indian River Central School District also operates Indian River High School (791 students) and Indian River Middle School (730 students) alongside Calcium Primary 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
How Calcium Primary School compares
Calcium Primary School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.9:1 | ▼ 8% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 30.1% | ▼ 46% | 56.2% | 51.7% |
| Enrollment | 480 | top 41% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.9:1
Leaner classes than 84% of US schools, among the more generously staffed nationally.
480
Bigger than 59% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
30.1%
free-lunch eligible
- 46% below the New York average of 56.2%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
10.9:1
students per teacher
- 8% below state mean
Top 43% in New York - lower ratio than 57% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
35.4%
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
$23,285
per pupil, district-wide
- below New York avg of $26,410
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.7 FTE
Per 282 students, the combined health-and-guidance staffing load for this school.
Discipline context
7
in-school suspensions + 9 out-of-school
Suspension rate: 1.5 per 100 students. Combined in-school and out-of-school rate: 3.3 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 54.4%
Hispanic or Latino 22.7%
Two or More 11.9%
African American 8.5%
Asian 2.1%
Native Hawaiian / Pacific Islander 0.4%
Largest group: White at 54.4% of enrollment.
Student-body diversity index 63.1/100
Simpson diversity index - at 63.1, Calcium Primary School is more mixed than the New York school average of 45.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Indian River Central School District, which includes Calcium Primary School.
$23,285
Per student
-12%
vs New York
Avg $26,410
+40%
vs U.S.
Avg $16,593
Revenue mix
Local 5.2%
State 64.7%
Federal 30.1%
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.
How Calcium Primary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Indian River High School | Larger | Similar economic need | Similar S:T ratio |
| Indian River Middle School | Larger | Higher economic need | Similar S:T ratio |
| Indian River Intermediate School | Similar size | Similar economic need | Higher S:T ratio |
| Evans Mills Primary School | Smaller | Higher economic need | Similar S:T ratio |
| Theresa Primary School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Calcium Primary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 791
- Students per teacher
- 10.8:1
- Resource Index
- 45/100
- Enrollment
- 730
- Students per teacher
- 11.4:1
- Resource Index
- 44/100
- Enrollment
- 565
- Students per teacher
- 13.1:1
- Resource Index
- 39/100
- Enrollment
- 330
- Students per teacher
- 10.6:1
- Resource Index
- 30/100
- Enrollment
- 163
- Students per teacher
- 10.9:1
- Resource Index
- 40/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~480 students)
Next steps
Verify locally before acting on Calcium Primary School's federal record.
- Compare Calcium Primary School against another school. Compare schools
- Indian River Central School District'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 Calcium Primary School
How many students attend Calcium Primary School?
Calcium Primary School has 480 students enrolled. It is a public school in Calcium, NY.
What is the student-teacher ratio at Calcium Primary School?
The student-teacher ratio at Calcium Primary School is 10.9:1, which is 8% lower than the New York average of 11.8:1 and 31% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Calcium Primary School?
30.1% of students at Calcium Primary School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Calcium Primary School?
The largest demographic group at Calcium Primary School is White at 54.4% of enrollment, in Calcium, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.1/100.
What is the Resource Investment Index for Calcium Primary School?
Calcium Primary School has a Resource Investment Index of 35/100 (typical 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).
Is Calcium Primary School a good school?
Calcium Primary School earns 35/100 on the Resource Investment Index, with class sizes near the New York median. 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 Indian River Central School District?
Besides Calcium Primary School, Indian River Central School District also operates Indian River High School (791 students), Indian River Middle School (730 students), and Indian River Intermediate School (565 students). See the Indian River Central School District district page for the complete list.
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.