Average
#3454 of 4,739 schools in NY
Seneca Middle School
Middle School · SACHEM CENTRAL SCHOOL DISTRICT
850 MAIN ST, Holbrook, NY 11741
Enrollment
974
Student-Teacher
11.2:1
Score
5.4
Grades
6th – 8th
Enrollment
974
Student-Teacher
11.2:1
Score
5.4
Grades
6th – 8th
Updated
2022-23
Updated 2022-23
How this school compares
In Holbrook
#5 of 5
public schools
New York middle schools
#486 of 785
In district
#13 of 15
SACHEM CENTRAL SCHOOL DISTRICT
School environment
7.0 / 10
Strong
About Seneca Middle School
Seneca Middle School serves 974 students in grades 6 through 8 in Holbrook, located on Main Street in this large suburban community. With 87 full-time equivalent teachers, the school maintains an 11.2:1 student-teacher ratio, providing relatively small class sizes for individualized attention. Academically, Seneca Middle School ranks in the 45th percentile among New York middle schools, with a MySchoolScout rating of 5.3 out of 10.
The school shows stronger performance in English Language Arts, where 61% of students score proficient or above across grade levels. Mathematics presents an area with significant room for academic growth, with 31% of students achieving proficiency. These results suggest the school is focusing on student development and working to strengthen instructional programs.
The school draws from a well-established suburban neighborhood where families demonstrate strong economic stability, with a median household income of $140,334 and home values averaging $471,000. The community shows educational commitment, with 35% of residents holding bachelor's degrees or higher, and maintains a low poverty rate of 4.8%. Seneca Middle School operates within this supportive Suffolk County community of nearly 28,000 residents, benefiting from the resources and stability that characterize this established Long Island suburban setting.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
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Seneca Middle School — Students at Seneca Middle School score 62% proficient, which is below what's typical for similar communities (expected: 66%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
27.2%
Students qualifying for federal meal assistance
Test Scores NY NYSED (2020-21)
Based on 10 test records from NY state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 3.1/10.
How Seneca Middle School Compares
See how Seneca Middle School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 76% (2019) to 62% (2021). Reading/ELA proficiency has improved from 52% (2019) to 62% (2021).
Location
850 MAIN ST, Holbrook, NY 11741
Nearby Alternatives
Families considering Seneca Middle School may also want to explore other middle schools in the area. JAMES WILSON YOUNG MIDDLE SCHOOL (rated 6.2/10, 3.4 miles away, in nearby Bayport), which scores slightly higher. Another option is SAYVILLE MIDDLE SCHOOL (rated 6.1/10, 3.2 miles away, in nearby Sayville), which scores slightly higher. Additionally, SAMOSET MIDDLE SCHOOL (rated 5.4/10, 2.6 miles away, in nearby Lake Ronkonkoma), with a very similar rating. For more schools in Holbrook, see our Holbrook schools guide .
Nearby Schools
20 within 3.6 mi| School | Distance | Rating |
|---|---|---|
| MERRIMAC SCHOOL Holbrook | 1.0 mi | 8.0 |
| GRUNDY AVENUE SCHOOL Holbrook | 1.2 mi | 7.5 |
| NOKOMIS SCHOOL Holbrook | 1.4 mi | 7.3 |
| TAMARAC ELEMENTARY SCHOOL Holbrook | 1.2 mi | 8.2 |
| HIAWATHA SCHOOL Lake Ronkonkoma | 1.6 mi | 8.1 |
| SAGAMORE MIDDLE SCHOOL Holtsville | 1.8 mi | 5.2 |
| CHIPPEWA ELEMENTARY SCHOOL Holtsville | 2.1 mi | 7.9 |
| WAVERLY AVENUE SCHOOL Holtsville | 2.0 mi | 8.3 |
| SAMOSET MIDDLE SCHOOL Lake Ronkonkoma | 2.6 mi | 5.4 |
| HOLBROOK ROAD SCHOOL Centereach | 2.9 mi | 5.3 |
| SUNRISE DRIVE ELEMENTARY SCHOOL Sayville | 3.1 mi | 6.7 |
| SACHEM HIGH SCHOOL NORTH Lake Ronkonkoma | 2.8 mi | 8.2 |
| SAYVILLE MIDDLE SCHOOL Sayville | 3.2 mi | 6.1 |
| CANAAN ELEMENTARY SCHOOL Patchogue | 2.7 mi | 8.0 |
| LYNWOOD AVENUE SCHOOL Farmingville | 3.0 mi | 8.4 |
| JOHN PEARL ELEMENTARY SCHOOL Bohemia | 3.1 mi | 5.7 |
| JAMES WILSON YOUNG MIDDLE SCHOOL Bayport | 3.4 mi | 6.2 |
| LINCOLN AVENUE ELEMENTARY SCHOOL Sayville | 3.6 mi | 6.2 |
| CAYUGA SCHOOL Lake Grove | 3.3 mi | 8.4 |
| SYLVAN AVENUE ELEMENTARY SCHOOL Bayport | 3.6 mi | 9.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 11741 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$138,417
Median Home Value
$504,000
Median Rent
$2,434/mo
Population
26,356
College Educated
33.3%
Homeownership
77.5%
Avg Commute
32.6 min
Poverty Rate
4.9%
Median Age
40.6
Community Profile
The community surrounding Seneca Middle School has a median household income of $138,417. It is an area where 33% of adults hold a bachelor's degree or higher. The median home value in the area is $504,000, with a median rent of $2,434/month. The local poverty rate of 4.9% is relatively low. The average commute for residents is 33 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| CAROLINE G ATKINSON SCHOOL Freeport, NY | 5.4 |
| CORONA ARTS AND SCIENCES ACADEMY Corona, NY | 5.4 |
| JENNIE F SNAPP MIDDLE SCHOOL Endicott, NY | 5.4 |
| JOHN F KENNEDY MIDDLE SCHOOL Utica, NY | 5.4 |
| JOSEPH F QUINN INTERMEDIATE SCHOOL 77 Ridgewood, NY | 5.4 |
| LAWRENCE ROAD MIDDLE SCHOOL Hempstead, NY | 5.4 |
Frequently Asked Questions
Common questions about Seneca Middle School
What grades does Seneca Middle School serve?
Seneca Middle School serves students in grades 6th through 8th.
How many students attend Seneca Middle School?
Seneca Middle School has an enrollment of approximately 974 students.
What is the student-teacher ratio at Seneca Middle School?
The student-teacher ratio at Seneca Middle School is 11.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Seneca Middle School rank in NY?
Seneca Middle School is ranked #3454 out of 4,739 schools in NY.
What is Seneca Middle School's MySchoolScout rating?
Seneca Middle School has a composite rating of 5.4 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Seneca Middle School?
Based on the most recent state assessment data, Seneca Middle School has 46.0% math proficiency and 59.4% reading/ELA proficiency.
Is Seneca Middle School a charter school?
No, Seneca Middle School is not a charter school. It is a traditional public school operated by the local school district.
Is Seneca Middle School a Title I school?
No, Seneca Middle School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Seneca Middle School?
27.2% of students at Seneca Middle School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 6th – 8th
- Enrollment
- 974
- Student-Teacher Ratio
- 11.2:1
- Teachers (FTE)
- 87
- Free/Reduced Lunch
- 27.2%
- Type
- regular
- Setting
- Large Suburb
- County
- Suffolk County
- Phone
- (631) 471-1850
- Data Year
- 2023–2024
Resources & Links
District
SACHEM CENTRAL SCHOOL DISTRICT- District Enrollment
- 11,729
- Schools in District
- 15
- Per-Pupil Spending
- $29,505
- District Rank
- #13 of 15
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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- Best Schools in New York, NY — 2026 Rankingsbest schools
- Best States for Public Schools in 2026: A Complete Rankingdata insights
- Charter Schools vs Public Schools: What the Data Actually Shows (2026)school choice
- Student-Teacher Ratio by State: Complete 2026 Rankingsdata insights
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