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What advice would you give to incoming students at SEAFORD SENIOR HIGH SCHOOL?
Community prompt from u/allk12. Replies below.
Enrollment
650
High
DISTRICT 546 · STATE 668
SCHOOL COMMUNITY·SEAFORD UNION FREE SCHOOL DISTRICT·NCES 362640003620
SEAFORD SENIOR HIGH SCHOOL
1575 SEAMANS NECK RD, SEAFORD, NY 11783 · (516) 592-4380 · Nassau County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL650 STUDENTS
Student : Teacher
9.7:1
67 FTE teachers
DISTRICT 9.8:1 · STATE 11.0:1
Free / Reduced Lunch
15%
95 students
DISTRICT 12% · STATE 58%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within SEAFORD UNION FREE SCHOOL DISTRICT. Attendance zones can vary; confirm enrollment with the district.
Test scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)English Language Arts
98.0%
NY avg 58.3% . -2.0pp since 2023
Math
72.0%
NY avg 57.4% . -11.0pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 98 of every 100 students at this school read and write at grade level and about 72 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are down about 2 points since 2023, while math scores are down about 11 points.
Source: NYS Assessments. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
71.7%
composite math + reading, all grades
Predicted
69.6%
based on NY schools with similar FRL share
Beats by
+2.0pp
above demographic expectation
What this means: About 72% of students here test proficient in math and reading, compared with the roughly 70% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
650
-61 (-9%) vs 2017
Student : Teacher
9.7:1
was 11.3:1
% White
82%
was 85%
% Hispanic
11%
was 10%
% Black
1%
was 1%
% Asian
4%
was 3%
Source: NCES Common Core of Data
About SEAFORD SENIOR HIGH SCHOOL
SEAFORD SENIOR HIGH SCHOOL, a moderately sized senior high in SEAFORD, New York, overseen by SEAFORD UNION FREE SCHOOL DISTRICT, teaches 650 students, covering grades 9 through 12.
Across the 4 schools in SEAFORD UNION FREE SCHOOL DISTRICT (2,184 students total), SEAFORD SENIOR HIGH SCHOOL accounts for its share of the district's footprint.
On the student-mix side, SEAFORD SENIOR HIGH SCHOOL records that 82% of students identify as White, making the school strongly White-majority. Beyond that, the school shows 11% Hispanic, 4% Asian. That is visibly more White than the county at large, where the share is closer to 57%.
In terms of school funding signals, Staff filings list 67 full-time-equivalent teachers, which works out to roughly 9.7:1 students per teacher. Statewide, the average ratio sits near 11.0:1, putting SEAFORD SENIOR HIGH SCHOOL tighter than the state norm the norm. Around 15% of the student body qualifies for free or reduced-price meals, often used as a Title I proxy. That share is south of Nassau County's rate of about 31%.
On a residual basis (actual vs predicted given the student mix), SEAFORD SENIOR HIGH SCHOOL performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 69.6%, the actual is 71.7%, a residual of +2.0 points.
Zooming out to the county, census data for Nassau County shows median household income runs about $146,202, roughly 50% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Across Nassau County's 315 public schools (combined enrollment of about 200,775 students), SEAFORD SENIOR HIGH SCHOOL is one campus in the mix.
SEAFORD MIDDLE SCHOOL is the nearest neighboring public school, about 0.3 miles from this campus. Counting just inside five miles, 8 other public schools cluster around SEAFORD SENIOR HIGH SCHOOL. On composite proficiency, SEAFORD SENIOR HIGH SCHOOL comes 5th of 9 in the immediate cluster, beneath the nearby-schools average of 72.0%.
The campus sits in a bedroom-community setting.
Trend over the last 7 years. Over the past 7-year window, the student count fell 9%: 711 students in 2018 compared to 650 in 2025. Class-load math has tightened: from 11.3:1 in 2018 to 9.7:1 in 2025.
Within the allk12 community for this school, members of the SEAFORD SENIOR HIGH SCHOOL community share and discuss sports schedules, lunch menu changes, and school spirit week. Posting is open to anyone connected to the school.
Nassau County at a glance
View full county profilePopulation
1,389,591
Census ACS
Median income
$146,202
Household, ACS
Bachelor's+
50%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
315
200,775 students
Quick facts
Related schools
Other schools in SEAFORD UNION FREE SCHOOL DISTRICT
- SEAFORD HARBOR SCHOOLElementary · 544 students
- SEAFORD MIDDLE SCHOOLMiddle · 522 students
- SEAFORD MANOR SCHOOLElementary · 468 students
Other schools in SEAFORD
- EAST BROADWAY SCHOOLElementary · 662 students
- SEAFORD HARBOR SCHOOLElementary · 544 students
- SEAFORD MIDDLE SCHOOLMiddle · 522 students
- SEAFORD MANOR SCHOOLElementary · 468 students
Nearby schools
- SEAFORD MIDDLE SCHOOL0.3 mi · 522
- SEAFORD MANOR SCHOOL0.4 mi · 468
- WANTAGH SCHOOL0.8 mi · 672
- WANTAGH MIDDLE SCHOOL1.0 mi · 645
- CHARLES E SCHWARTING SCHOOL1.1 mi · 524
- WANTAGH SENIOR HIGH SCHOOL1.1 mi · 826
Frequently asked questions
About SEAFORD SENIOR HIGH SCHOOLHow many students attend SEAFORD SENIOR HIGH SCHOOL?
SEAFORD SENIOR HIGH SCHOOL enrolls approximately 650 students in grades 09-12.
Is SEAFORD SENIOR HIGH SCHOOL an elementary, middle, or high school?
SEAFORD SENIOR HIGH SCHOOL is a high school covering grades 09-12.
How many teachers does SEAFORD SENIOR HIGH SCHOOL have?
SEAFORD SENIOR HIGH SCHOOL employs 67 FTE teachers, for a student-to-teacher ratio of 9.7:1.
What is the racial breakdown of students at SEAFORD SENIOR HIGH SCHOOL?
At SEAFORD SENIOR HIGH SCHOOL, the student body is approximately 82% White, 11% Hispanic, 1% Black, 4% Asian, 1% Two or more.
Is SEAFORD SENIOR HIGH SCHOOL public or private?
SEAFORD SENIOR HIGH SCHOOL is a public K-12 school, overseen by SEAFORD UNION FREE SCHOOL DISTRICT.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.