Enrollment
469
New York · 2024-25 NCES data
Elementary school (grades K-5) · Bay Shore, NY
Federal NCES profile for Mary G Clarkson School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
The verdict
Mary G Clarkson School earns 32/100 on the Resource Investment Index, with class sizes smaller than 76% of New York schools.
Mary G Clarkson School has class sizes smaller than 76% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Mary G Clarkson School ranks #3 of 8 elementary schools in Bay Shore, NY.
NCES ID 360408000170 Verify on NCES CCD record →
Enrollment
469
New York · 2024-25 NCES data
Teachers (FTE)
49.0
Federal CCD staff survey
Students per teacher
9.6:1
vs 11.8:1 New York avg
-19% vs state
Free-lunch eligible
51.8%
vs 56.2% New York avg
-8% vs state
How Mary G Clarkson School compares with New York and U.S. medians
Smaller classes than state median
9.6:1 - 2.2 below the New York state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Mary G Clarkson School is a higher-need, mid-sized elementary school in Bay Shore, New York, enrolling 469 students.
Class sizes run a bit leaner than typical: 9.6:1 puts it in the smaller third of New York schools by student-teacher ratio.
Its free-meal eligibility rate of 51.8% lands close to the New York typical range, neither a high- nor low-need campus by this measure.
With 469 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index lands in the lower third of 4,801 scored New York schools.
Against 827 statewide peers matched on enrollment and economic need, it ranks mid-pack at #539.
Its student body is led by Hispanic or Latino (56%) and White (20%) (diversity index 62/100).
Chronic absenteeism is elevated: 38.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Bay Shore Union Free School District also operates Bay Shore Senior High School (1,862 students) and Bay Shore Middle School (1,258 students) alongside Mary G Clarkson 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
Mary G Clarkson 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 | 9.6:1 | ▼ 19% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 51.8% | ▼ 8% | 56.2% | 51.7% |
| Enrollment | 469 | top 42% | - | - |
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 56.3% of enrollment.
Simpson diversity index - at 61.9, Mary G Clarkson School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for Bay Shore Union Free School District, which includes Mary G Clarkson 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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Bay Shore Senior High School | Larger | Similar economic need | Higher S:T ratio |
| Bay Shore Middle School | Larger | Similar economic need | Similar S:T ratio |
| Gardiner Manor School | Larger | Similar economic need | Similar S:T ratio |
| South Country School | Similar size | Similar economic need | Similar S:T ratio |
| Fifth Avenue School | Smaller | Lower economic need | Similar S:T ratio |
Comparisons are relative to Mary G Clarkson School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Mary G Clarkson 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.
Mary G Clarkson School has 469 students enrolled. It is an elementary school in Bay Shore, NY.
The student-teacher ratio at Mary G Clarkson School is 9.6:1, which is 19% lower than the New York average of 11.8:1 and 39% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
51.8% of students at Mary G Clarkson School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at Mary G Clarkson School is Hispanic or Latino at 56.3% of enrollment, in Bay Shore, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.9/100.
Mary G Clarkson School has a Resource Investment Index of 32/100 (typical 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).
By Resource Investment Index, Mary G Clarkson School ranks #3 of 8 elementary schools in Bay Shore, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Bay Shore on the city page.
Mary G Clarkson School earns 32/100 on the Resource Investment Index, with class sizes smaller than 76% of New York 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.
Besides Mary G Clarkson School, Bay Shore Union Free School District also operates Bay Shore Senior High School (1,862 students), Bay Shore Middle School (1,258 students), and Gardiner Manor School (739 students). See the Bay Shore Union Free School District 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.
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PlainSchools, “Mary G Clarkson School, Bay Shore NY.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/mary-g-clarkson-school-ny
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