Enrollment
414
New York · 2024-25 NCES data
Middle school (grades 6-8) · Lynbrook, NY
Federal NCES profile for Lynbrook South Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Lynbrook South Middle School earns 55/100 on the Resource Investment Index, with class sizes near the New York median.
Lynbrook South Middle School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Lynbrook South Middle School ranks #4 of 7 public schools in Lynbrook, NY.
NCES ID 361791001607 Verify on NCES CCD record →
Enrollment
414
New York · 2024-25 NCES data
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
10.6:1
vs 11.8:1 New York avg
-10% vs state
Free-lunch eligible
13.1%
vs 56.2% New York avg
-77% vs state
How Lynbrook South Middle School compares with New York and U.S. medians
At or below state median
10.6:1 - 1.2 below the New York state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Lynbrook South Middle School is a lower-poverty, mid-sized middle school in Lynbrook, New York, enrolling 414 students.
Class sizes run a bit leaner than typical: 10.6:1 puts it in the smaller third of New York schools by student-teacher ratio.
Comparatively few students face economic hardship here, 13.1% free-meal eligibility runs 77% below the New York average.
With 414 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 478 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #77.
Its student body is led by White (67%) and Hispanic or Latino (17%) (diversity index 52/100).
Counselor coverage is strong, about 207 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance holds up well here: only 9.9% of students were chronically absent, below the typical post-pandemic national figure.
Lynbrook Union Free School District also operates Lynbrook Senior High School (846 students) and Marion Street School (435 students) alongside Lynbrook South Middle 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
Lynbrook South Middle 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 | 10.6:1 | ▼ 10% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 13.1% | ▼ 77% | 56.2% | 51.7% |
| Enrollment | 414 | top 52% | - | - |
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: White at 66.7% of enrollment.
Simpson diversity index - at 51.6, Lynbrook South Middle School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for Lynbrook Union Free School District, which includes Lynbrook South Middle 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 |
|---|---|---|---|
| Lynbrook Senior High School | Larger | Similar economic need | Similar S:T ratio |
| Marion Street School | Similar size | No free-lunch data | Similar S:T ratio |
| West End School | Similar size | No free-lunch data | Similar S:T ratio |
| Lynbrook North Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Waverly Park School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Lynbrook South Middle 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 Lynbrook South Middle 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.
Lynbrook South Middle School has 414 students enrolled. It is a middle school in Lynbrook, NY.
The student-teacher ratio at Lynbrook South Middle School is 10.6:1, which is 10% lower than the New York average of 11.8:1 and 32% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
13.1% of students at Lynbrook South Middle School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at Lynbrook South Middle School is White at 66.7% of enrollment, in Lynbrook, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.6/100.
Lynbrook South Middle School has a Resource Investment Index of 55/100 (higher 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).
By Resource Investment Index, Lynbrook South Middle School ranks #4 of 7 public schools in Lynbrook, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Lynbrook on the city page.
Lynbrook South Middle School earns 55/100 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.
Besides Lynbrook South Middle School, Lynbrook Union Free School District also operates Lynbrook Senior High School (846 students), Marion Street School (435 students), and West End School (386 students). See the Lynbrook 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, “Lynbrook South Middle School, Lynbrook 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/lynbrook-south-middle-school-ny
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