Best Schools in Suffolk County, NY
Suffolk County, NY has 398 public schools (60 high, 71 middle, 238 elementary) serving 247,359 students. On average they score 60% on state proficiency tests against a projected 63%, so schools in Suffolk County underperform expectations. Rankings below compare each school’s actual results with the projection for its socioeconomic context.
Best High Schools in Suffolk County, NY
The top high schools in Suffolk County, ranked by actual test performance against the projection for each school’s socioeconomic context.
1. Syosset Senior High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Syosset Central School District • Public • Grades 9 - 12 • 2266 Students
2. Robert M Grable Jr Mount Sinai High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Mount Sinai Union Free School District • Public • Grades 9 - 12 • 720 Students
3. Half Hollow Hills High School West
SchoolGrade
Actual Test Scores
Projected Test Scores
Half Hollow Hills Central School District • Public • Grades 9 - 12 • 1055 Students
4. Harborfields High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Harborfields Central School District • Public • Grades 9 - 12 • 949 Students
5. Sayville High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Sayville Union Free School District • Public • Grades 9 - 12 • 880 Students
6. Cold Spring Harbor High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Cold Spring Harbor Central School District • Public • Grades 7 - 12 • 739 Students
7. Ward Melville Senior High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Three Village Central School District • Public • Grades 9 - 12 • 1507 Students
8. Smithtown High School-west
SchoolGrade
Actual Test Scores
Projected Test Scores
Smithtown Central School District • Public • Grades 9 - 12 • 1270 Students
9. Plainview-old Bethpage/jfk High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Plainview-old Bethpage Central School District • Public • Grades 9 - 12 • 1649 Students
10. Commack High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Commack Union Free School District • Public • Grades 9 - 12 • 1861 Students
Best Middle Schools in Suffolk County, NY
The top middle schools in Suffolk County, ranked by actual test performance against the projection for each school’s socioeconomic context.
1. Ronkonkoma Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Connetquot Central School District • Public • Grades 6 - 8 • 672 Students
2. H B Thompson Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Syosset Central School District • Public • Grades 6 - 8 • 997 Students
3. H B Mattlin Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Plainview-old Bethpage Central School District • Public • Grades 5 - 8 • 772 Students
4. Paul J Gelinas Junior High School
SchoolGrade
Actual Test Scores
Projected Test Scores
Three Village Central School District • Public • Grades 7 - 9 • 647 Students
5. Albert G Prodell Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Shoreham-wading River Central School District • Public • Grades 6 - 8 • 456 Students
6. Candlewood Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Half Hollow Hills Central School District • Public • Grades 6 - 8 • 719 Students
7. Great Hollow Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Smithtown Central School District • Public • Grades 6 - 8 • 828 Students
8. Westhampton Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Westhampton Beach Union Free School District • Public • Grades 6 - 8 • 434 Students
9. Accompsett Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Smithtown Central School District • Public • Grades 6 - 8 • 532 Students
10. Berner Middle School
SchoolGrade
Actual Test Scores
Projected Test Scores
Massapequa Union Free School District • Public • Grades 6 - 8 • 1596 Students
Best Elementary Schools in Suffolk County, NY
The top elementary schools in Suffolk County, ranked by actual test performance against the projection for each school’s socioeconomic context.
1. Quogue Elementary School
SchoolGrade
Actual Test Scores
Projected Test Scores
Quogue Union Free School District • Public • Grades Pre K - 6 • 84 Students
2. Old Bethpage School
SchoolGrade
Actual Test Scores
Projected Test Scores
Plainview-old Bethpage Central School District • Public • Grades KG - 4 • 435 Students
3. West Side School
SchoolGrade
Actual Test Scores
Projected Test Scores
Cold Spring Harbor Central School District • Public • Grades 2 - 6 • 233 Students
4. Walt Whitman Elementary School
SchoolGrade
Actual Test Scores
Projected Test Scores
Syosset Central School District • Public • Grades KG - 5 • 387 Students
5. Idle Hour Elementary School
SchoolGrade
Actual Test Scores
Projected Test Scores
Connetquot Central School District • Public • Grades Pre K - 5 • 190 Students
6. Montauk School
SchoolGrade
Actual Test Scores
Projected Test Scores
Montauk Union Free School District • Public • Grades Pre K - 8 • 303 Students
7. Vanderbilt Elementary School
SchoolGrade
Actual Test Scores
Projected Test Scores
Half Hollow Hills Central School District • Public • Grades KG - 5 • 703 Students
8. Nassakeag Elementary School
SchoolGrade
Actual Test Scores
Projected Test Scores
Three Village Central School District • Public • Grades Pre K - 6 • 543 Students
9. Lloyd Harbor School
SchoolGrade
Actual Test Scores
Projected Test Scores
Cold Spring Harbor Central School District • Public • Grades 2 - 6 • 390 Students
10. Paumanok Elementary School
SchoolGrade
Actual Test Scores
Projected Test Scores
Half Hollow Hills Central School District • Public • Grades KG - 5 • 574 Students
Education & Community Snapshot in Suffolk County, NY
County-level factors that shape the learning environment around local schools.
Community Factors
Suffolk County, NY has a total population of 1,525,920 with 24% of that population attending schools. The adult high school graduation rate is 90%, and 40% of adults have a bachelor’s degree or higher.
Students in Suffolk County, NY
K-12 Students
High School Graduates
Adults 25+ with HS diplomas
College Graduates
Adults 25+ with a Bachelor’s degree or higher
Demographics statistics provided by Best Neighborhood Suffolk County, NY.
Safety
Crime Grades summarize reported incidents per 1,000 residents. Use them as neighborhood context, not a school rating.
Overall Crime Grade
17.39 per 1,000 Residents
Violent Crime Grade
3.01 per 1,000 Residents
Property Crime Grade
14.38 per 1,000 Residents
Crime statistics provided by CrimeGrade in Suffolk County, NY.
Connectivity
Connectivity influences learning at home. We summarize internet infrastructure, typical download speed, and a digital connectivity index for Suffolk County, NY.
ISP Report Card
Internet Infrastructure Grade
Average Download Speed
Speed Most Residents Can Get
Digital Connectivity Index
ISP Connectivity Demand Report
To read more about these statistics, please visit Suffolk County, NY Internet Health Assessment.
Questions About Schools in Suffolk County, NY
How many schools are in Suffolk County, NY?
Suffolk County, NY has 398 public schools: 60 high schools, 71 middle schools and 238 elementary schools, serving 247,359 students in total.
How do schools in Suffolk County perform on state tests?
On average, 398 schools in Suffolk County score 60% proficient on state assessments. Given the socioeconomic context of their students we project 63%, so on average schools in Suffolk County underperform expectations.
How does SchoolGrade rank the best schools in Suffolk County?
Every public school gets a SchoolGrade from A+ to F based on the share of students at or above the state proficiency bar. The Impact Grade compares that result with what we would expect given the school’s student and community context, so schools that outperform their circumstances stand out. Schools cannot pay to change a grade. Read the full methodology.
Best Schools in Cities Near Suffolk County, NY
Explore nearby cities to widen your school search.
- Actual: 41%
- Projected: 39%
- Impact Grade: Exceeds Expectations
- Actual: 70%
- Projected: 67%
- Impact Grade: Doesn't Meet Expectations
- Actual: 54%
- Projected: 52%
- Impact Grade: Meets Expectations
- Actual: 38%
- Projected: 39%
- Impact Grade: Meets Expectations
- Actual: 57%
- Projected: 48%
- Impact Grade: Greatly Exceeds Expectations
- Actual: 65%
- Projected: 61%
- Impact Grade: Meets Expectations
- Actual: 47%
- Projected: 36%
- Impact Grade: Greatly Exceeds Expectations
- Actual: 55%
- Projected: 48%
- Impact Grade: Greatly Exceeds Expectations
- Actual: 53%
- Projected: 47%
- Impact Grade: Greatly Exceeds Expectations
- Actual: 57%
- Projected: 41%
- Impact Grade: Greatly Exceeds Expectations
Cities, towns and school districts in Suffolk County
89 places in Suffolk County with graded public schools. Each link opens that place's ranked schools.
Cities and towns (89)
- Brentwood (13)
- Bay Shore (12)
- Huntington (9)
- Centereach (8)
- Dix Hills (8)
- Lindenhurst (8)
- Central Islip (7)
- Commack (7)
- Huntington Station (7)
- North Babylon (7)
- Patchogue (7)
- Smithtown (7)
- West Babylon (7)
- West Islip (7)
- Copiague (6)
- Deer Park (5)
- Holbrook (5)
- Islip (5)
- Moriches (5)
- Northport (5)
- Riverhead (5)
- Selden (5)
- Amityville (4)
- Bayport (4)
- Bohemia (4)
- East Hampton (4)
- East Setauket (4)
- Islip Terrace (4)
- Kings Park (4)
- Medford (4)
- Miller Place (4)
- Rocky Point (4)
- Ronkonkoma (4)
- Shirley (4)
- Southampton (4)
- Wyandanch (4)
- Babylon (3)
- Bellport (3)
- East Northport (3)
- Greenlawn (3)
- Hampton Bays (3)
- Hauppauge (3)
- Holtsville (3)
- Lake Grove (3)
- Manorville (3)
- Mastic Beach (3)
- Melville (3)
- Mount Sinai (3)
- Port Jefferson (3)
- Sayville (3)
- Shoreham (3)
- Westhampton Beach (3)
- Brookhaven (2)
- Calverton (2)
- Cold Spring Harbor (2)
- East Islip (2)
- East Moriches (2)
- Eastport (2)
- Greenport (2)
- Lake Ronkonkoma (2)
- Nesconset (2)
- Oakdale (2)
- Sag Harbor (2)
- Southold (2)
- Stony Brook (2)
- Wading River (2)
- West Sayville (2)
- Amagansett (1)
- Blue Point (1)
- Bridgehampton (1)
- Centerport (1)
- Coram (1)
- Cutchogue (1)
- East Patchogue (1)
- East Quogue (1)
- Farmingville (1)
- Fishers Island (1)
- Islandia (1)
- Mattituck (1)
- Montauk (1)
- Orient (1)
- Quogue (1)
- Remsenburg (1)
- Ridge (1)
- Sagaponack (1)
- Shelter Island (1)
- St James (1)
- Wainscott (1)
- Yaphank (1)
School districts (48)
- Brentwood Union Free School District (17 schools)
- Sachem Central School District (15 schools)
- Middle Country Central School District (14 schools)
- Smithtown Central School District (12 schools)
- Patchogue-Medford Union Free School District (11 schools)
- Connetquot Central School District (10 schools)
- Half Hollow Hills Central School District (9 schools)
- William Floyd Union Free School District (9 schools)
- Central Islip Union Free School District (8 schools)
- Commack Union Free School District (8 schools)
- Huntington Union Free School District (8 schools)
- Lindenhurst Union Free School District (8 schools)
- Three Village Central School District (8 schools)
- Bay Shore Union Free School District (7 schools)
- Longwood Central School District (7 schools)
- North Babylon Union Free School District (7 schools)
- Northport-East Northport Union Free School District (7 schools)
- Riverhead Central School District (7 schools)
- South Huntington Union Free School District (7 schools)
- West Babylon Union Free School District (7 schools)
- West Islip Union Free School District (7 schools)
- Brookhaven-Comsewogue Union Free School District (6 schools)
- Copiague Union Free School District (6 schools)
- East Islip Union Free School District (6 schools)
- South Country Central School District (6 schools)
- Amityville Union Free School District (5 schools)
- Bayport-Blue Point Union Free School District (5 schools)
- Deer Park Union Free School District (5 schools)
- Eastport-South Manor Csd (5 schools)
- Hauppauge Union Free School District (5 schools)
- Islip Union Free School District (5 schools)
- Kings Park Central School District (5 schools)
- Sayville Union Free School District (5 schools)
- Cold Spring Harbor Central School District (4 schools)
- Elwood Union Free School District (4 schools)
- Harborfields Central School District (4 schools)
- Miller Place Union Free School District (4 schools)
- Rocky Point Union Free School District (4 schools)
- Shoreham-Wading River Central School District (4 schools)
- Wyandanch Union Free School District (4 schools)
- Babylon Union Free School District (3 schools)
- Center Moriches Union Free School District (3 schools)
- East Hampton Union Free School District (3 schools)
- Hampton Bays Union Free School District (3 schools)
- Mount Sinai Union Free School District (3 schools)
- Port Jefferson Union Free School District (3 schools)
- Southampton Union Free School District (3 schools)
- Westhampton Beach Union Free School District (3 schools)