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Suffolk County

New York · Public K-12

Suffolk County is one of New York's public-school counties, with 343 campuses serving about 222,439 students (209 elementary, 66 middle, and 59 high). Median household income in the county is roughly $130,686.

7-year change in Suffolk County

SY 2017-18 vs SY 2024-25
Total enrollment
222,431
-16,138 (-7%) vs SY 2017-18
School count
342
0 (0%) vs SY 2017-18
% White
43%
was 54%
% Hispanic
40%
was 31%
% Black
8%
was 8%
% Asian
5%
was 4%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
343
77 districts
Enrollment
222,439
NCES CCD
Median income
$130,686
Above New York avg
Free/reduced lunch
39.4%
Below New York avg
Elementary
209
95,097 students
Middle
66
47,889 students
High
59
74,596 students
Combined / other
9
4,857 students
LARGEST DISTRICT
BRENTWOOD UNION FREE SCHOOL DISTRICT
17,844 students · 77 districts in Suffolk County

County vs. school enrollment demographics

Left bar is the racial makeup of Suffolk County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".

County residents
White
66%
Hispanic
23%
Black
8%
Asian
5%
Two or more
12%
Native American
1%
Pacific Islander
0%
School enrollment
White
43%
Hispanic
40%
Black
8%
Asian
5%
Two or more
3%
Native American
0%
Pacific Islander
0%
Bachelor's+
40.2%
adults 25+
Poverty rate
4.0%
ACS 5-year
Unemployment
4.7%
civilian labor
Median age
42
20.8% under 18

Test scores in Suffolk County

Latest 2024-25 ELA proficiency, 294 schools ranked. New York state average: 58.3%.

See all 294 schools in Suffolk County ranked by score →

All schools (343)

LargestA-ZTop rated
NameCityLevelGradesEnrollmentRating
RIDGE ELEMENTARY SCHOOLRidgeElementaryKG-04684·
EAGLE ELEMENTARY SCHOOLMedfordElementaryPK-05680·
OAK PARK ELEMENTARY SCHOOLBay ShoreElementaryKG-05678·
ELWOOD/JOHN GLENN HIGH SCHOOLElwoodHigh09-12677·
SIGNAL HILL ELEMENTARY SCHOOLDix HillsElementaryPK-05672·
LAUREL PARK ELEMENTARY SCHOOLBrentwoodElementary01-05671·
BURR INTERMEDIATE SCHOOLCommackElementary03-05669·
BABYLON JUNIOR-SENIOR HIGH SCHOOLBabylonHigh07-12662·
BIRCHWOOD INTERMEDIATE SCHOOLMelvilleElementary03-05659·
MOUNT SINAI ELEMENTARY SCHOOLMount SinaiElementaryKG-04657·
PHILLIPS AVENUE SCHOOLRiverheadElementaryPK-04656·
ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOLStony BrookMiddle07-09655·
HAMPTON BAYS ELEMENTARY SCHOOLHampton BaysElementaryKG-04654·
PAUL J GELINAS JUNIOR HIGH SCHOOLSetauketMiddle07-09651·
MINNESAUKE ELEMENTARY SCHOOLEast SetauketElementaryPK-06644·
OAKWOOD PRIMARY CENTERHuntingtonElementaryPK-02643·
RONKONKOMA MIDDLE SCHOOLRonkonkomaMiddle06-08641·
LORETTA PARK ELEMENTARY SCHOOLBrentwoodElementary01-05639·
EAST NORTHPORT MIDDLE SCHOOLEast NorthportMiddle05-08633·
SHOREHAM-WADING RIVER HIGH SCHOOLShorehamHigh09-12629·
OLDFIELD MIDDLE SCHOOLGreenlawnMiddle06-08627·
WASHINGTON DRIVE PRIMARY SCHOOLCenterportElementaryKG-02621·
CHEROKEE STREET ELEMENTARY SCHOOLRonkonkomaElementaryKG-05618·
MOUNT SINAI MIDDLE SCHOOLMount SinaiMiddle05-08617·
ROCKY POINT MIDDLE SCHOOLRocky PointMiddle06-08613·
SUSAN E WILEY SCHOOLCopiagueElementaryKG-05611·
HEMLOCK ELEMENTARY SCHOOLBay ShoreElementaryKG-05609·
PARK AVENUE SCHOOLAmityvilleElementary02-05604·
PAUMANOK ELEMENTARY SCHOOLDix HillsElementaryKG-05602·
THOMAS J LAHEY ELEMENTARY SCHOOLGreenlawnElementary03-05602·
ISLIP MIDDLE SCHOOLIslipMiddle06-08601·
FRANCIS J O'NEILL SCHOOLCentral IslipElementaryKG-06600·
SETAUKET ELEMENTARY SCHOOLSetauketElementaryPK-06599·
CANAAN ELEMENTARY SCHOOLPatchogueElementaryPK-05596·
MAPLEWOOD INTERMEDIATE SCHOOLHuntington StationElementary03-05594·
EDMUND W MILES MIDDLE SCHOOLAmityvilleMiddle06-08592·
SALTZMAN EAST MEMORIAL ELEMENTARY SCHOOLFarmingdaleElementaryKG-05592·
WILLIAM T ROGERS MIDDLE SCHOOLKings ParkMiddle06-08588·
CLAYTON HUEY ELEMENTARY SCHOOLCenter MorichesElementaryKG-05586·
SAYVILLE MIDDLE SCHOOLSayvilleMiddle06-08582·
SOUTHAMPTON HIGH SCHOOLSouthamptonHigh09-12582·
BAYPORT-BLUE POINT HIGH SCHOOLBayportHigh09-12579·
J TAYLOR FINLEY MIDDLE SCHOOLHuntingtonMiddle07-08579·
SAXTON MIDDLE SCHOOLPatchogueMiddle06-08579·
OTSEGO ELEMENTARY SCHOOLDix HillsElementaryKG-05574·
COUNTRYWOOD PRIMARY CENTERHuntington StationElementaryKG-02572·
HAMPTON BAYS MIDDLE SCHOOLHampton BaysMiddle05-08570·
MARGUERITE L MULVEY SCHOOLCentral IslipElementaryKG-06567·
OAKDALE-BOHEMIA MIDDLE SCHOOLOakdaleMiddle06-08564·
ARROWHEAD ELEMENTARY SCHOOLEast SetauketElementaryPK-06562·
LYNWOOD AVENUE SCHOOLFarmingvilleElementaryKG-05561·
NASSAKEAG ELEMENTARY SCHOOLEast SetauketElementaryPK-06551·
SAWMILL INTERMEDIATE SCHOOLCommackElementary02-05550·
MILTON L OLIVE MIDDLE SCHOOLWyandanchMiddle06-08546·
OREGON MIDDLE SCHOOLMedfordMiddle06-08545·
PINE PARK ELEMENTARY SCHOOLBrentwoodElementaryKG-01544·
CHIPPEWA ELEMENTARY SCHOOLHoltsvilleElementaryKG-05543·
FRANK P LONG INTERMEDIATE SCHOOLBellportElementary04-05542·
JOSEPH A EDGAR INTERMEDIATE SCHOOLRocky PointElementary03-05542·
HIAWATHA SCHOOLLake RonkonkomaElementaryKG-05541·
CAYUGA SCHOOLLake GroveElementaryKG-05539·
WILLIAM RALL SCHOOLLindenhurstElementaryKG-05539·
LAFRANCIS HARDIMAN ELEMENTARY SCHOOLWyandanchElementaryPK-02538·
MARTIN LUTHER KING ELEMENTARY SCHOOLWyandanchElementary03-05538·
SUNQUAM ELEMENTARY SCHOOLMelvilleElementaryKG-05538·
SOUTHEAST ELEMENTARY SCHOOLBrentwoodElementary01-05533·
FRANK J CARASITI ELEMENTARY SCHOOLRocky PointElementaryKG-02531·
NORTH COUNTRY ROAD SCHOOLMiller PlaceMiddle06-08530·
WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOLStony BrookElementaryPK-06525·
MATTITUCK JUNIOR-SENIOR HIGH SCHOOLMattituckHigh07-12524·
ACCOMPSETT ELEMENTARY SCHOOLSmithtownElementaryKG-05523·
ACCOMPSETT MIDDLE SCHOOLSmithtownMiddle06-08522·
RILEY AVENUE SCHOOLCalvertonElementaryPK-04520·
JOHN M MARSHALL ELEMENTARY SCHOOLEast HamptonElementaryPK-05517·
SMITHTOWN ELEMENTARY SCHOOLSmithtownElementaryKG-05517·
BARTON ELEMENTARY SCHOOLPatchogueElementaryPK-05515·
BROOKHAVEN ELEMENTARY SCHOOLBrookhavenElementaryPK-03515·
MANETUCK ELEMENTARY SCHOOLWest IslipElementaryPK-05514·
MEDFORD ELEMENTARY SCHOOLPatchogueElementaryPK-05513·
SOUTH OCEAN MIDDLE SCHOOLPatchogueMiddle06-08513·
CENTER MORICHES HIGH SCHOOLCenter MorichesHigh09-12511·
BRETTON WOODS ELEMENTARY SCHOOLHauppaugeElementaryPK-05509·
PIERSON MIDDLE/HIGH SCHOOLSag HarborHigh06-12501·
ALBANY AVENUE SCHOOLLindenhurstElementaryKG-05498·
PINES ELEMENTARY SCHOOLSmithtownElementaryPK-05498·
WAVERLY AVENUE SCHOOLHoltsvilleElementaryKG-05497·
NOKOMIS SCHOOLHolbrookElementaryKG-05496·
SOUTH COUNTRY SCHOOLBay ShoreElementary03-05496·
DANIEL STREET SCHOOLLindenhurstElementaryKG-05495·
ANTHONY ALFANO ELEMENTARY SCHOOLCentral IslipElementaryPK-06491·
BABYLON MEMORIAL GRADE SCHOOLBabylonElementary03-06490·
CORDELLO AVENUE ELEMENTARY SCHOOLCentral IslipElementaryKG-06490·
WENONAH SCHOOLLake GroveElementaryKG-05488·
MOUNT PLEASANT ELEMENTARY SCHOOLSmithtownElementaryKG-05479·
UNITY DRIVE KINDERGARTEN-PRE K CENTERCentereachElementaryPK-KG478·
SOUND BEACH SCHOOLMiller PlaceElementary03-05476·
TERRYVILLE ROAD SCHOOLPort Jefferson StaElementary03-05471·
TACKAN ELEMENTARY SCHOOLNesconsetElementaryKG-05470·
MARY G CLARKSON SCHOOLBay ShoreElementaryKG-02469·
ACADEMY CHARTER SCHOOL 2 (THE)WyandanchElementaryKG-06468·

Cities in Suffolk County

Bay Shore13 schoolsBrentwood13 schoolsDix Hills11 schoolsHuntington9 schoolsCentereach8 schoolsCentral Islip8 schoolsLindenhurst8 schoolsPatchogue8 schoolsSmithtown8 schoolsCommack7 schoolsHuntington Station7 schoolsNorth Babylon7 schoolsWest Babylon7 schoolsWest Islip7 schoolsCopiague6 schoolsPort Jefferson Sta6 schoolsRiverhead6 schoolsDeer Park5 schoolsHolbrook5 schoolsIslip5 schoolsNorthport5 schoolsSelden5 schoolsWyandanch5 schoolsAmityville4 schoolsBayport4 schoolsBohemia4 schoolsEast Hampton4 schoolsEast Setauket4 schoolsIslip Terrace4 schoolsKings Park4 schoolsMedford4 schoolsMiddle Island4 schoolsMiller Place4 schoolsRocky Point4 schoolsRonkonkoma4 schoolsShirley4 schoolsSouthampton4 schoolsBabylon3 schoolsBellport3 schoolsCenter Moriches3 schoolsEast Northport3 schoolsElwood3 schoolsGreenlawn3 schoolsHampton Bays3 schoolsHauppauge3 schoolsHoltsville3 schoolsLake Grove3 schoolsLake Ronkonkoma3 schoolsManorville3 schoolsMastic Beach3 schoolsMelville3 schoolsMount Sinai3 schoolsPort Jefferson3 schoolsSaint James3 schoolsSayville3 schoolsShoreham3 schoolsWesthampton Beach3 schoolsBrookhaven2 schoolsCalverton2 schoolsCold Spring Harbor2 schoolsEast Islip2 schoolsEast Moriches2 schoolsEastport2 schoolsFarmingville2 schoolsGreenport2 schoolsMoriches2 schoolsNesconset2 schoolsOakdale2 schoolsSag Harbor2 schoolsSetauket2 schoolsSouthold2 schoolsStony Brook2 schoolsWading River2 schoolsWest Sayville2 schoolsAmagansett1 schoolAquebogue1 schoolBlue Point1 schoolBridgehampton1 schoolCenterport1 schoolCoram1 schoolCutchogue1 schoolEast Patchogue1 schoolEast Quogue1 schoolFarmingdale1 schoolFishers Island1 schoolIslandia1 schoolMattituck1 schoolMontauk1 schoolNew Suffolk1 schoolOrient1 schoolQuogue1 schoolRemsenburg1 schoolRidge1 schoolSagaponack1 schoolShelter Island1 schoolSt James1 schoolWainscott1 schoolYaphank1 school

About Suffolk County

Suffolk County is a sizable New York county of about 1,530,146 residents, home to 343 public schools and roughly 222,439 students.

Stepping back, census numbers show median household income runs near $130,686, about 40% of adults have a bachelor's degree or above, and roughly 4% of residents live below the federal poverty line. That income level is 68% noticeably above the New York median.

On the level-by-level breakdown, Suffolk County consists of 209 elementary schools (95,097 students), 66 middle schools (47,889), 59 high schools (74,596), and 9 combined or other schools.

The largest single district in Suffolk County is BRENTWOOD UNION FREE SCHOOL DISTRICT, which alone enrolls about 17,844 students.

Trend over the past 7 years. Total public-school enrollment in Suffolk County has shrank 7% since SY 2017-18, moving from about 238,569 students to 222,431. On the demographic side, White enrollment moved from 54% to 43% over the same window.

On this page, the community for Suffolk County discusses enrollment trends, district policy changes, and bus-route updates. Members of the local community share what they see day-to-day.

Frequently asked questions

How many public schools are in Suffolk County?
Suffolk County, New York has 343 public K-12 schools serving approximately 222,439 students.
How many high schools are in Suffolk County?
Suffolk County, New York has 59 public high schools, serving approximately 74,596 students.
How many middle schools are in Suffolk County?
Suffolk County, New York has 66 public middle schools, serving approximately 47,889 students.
How many elementary schools are in Suffolk County?
Suffolk County, New York has 209 public elementary schools, serving approximately 95,097 students.
What is the largest school district in Suffolk County?
BRENTWOOD UNION FREE SCHOOL DISTRICT is the largest school district in Suffolk County, serving approximately 17,844 students. The county contains 77 school districts overall.
What is the population of Suffolk County?
Suffolk County, New York has a population of approximately 1,530,146, with a median age of 42. About 20.8% of residents are under 18.
What is the median household income in Suffolk County?
Median household income in Suffolk County is $130,686, above the New York average of $77,785. About 4.0% of residents live below the federal poverty line.
How educated are residents of Suffolk County?
Approximately 40.2% of adults 25 and older in Suffolk County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in Suffolk County qualify for free or reduced lunch?
Roughly 39.4% of students in Suffolk County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is lower than the New York county average of 48.7%.
What is the student-teacher ratio in Suffolk County schools?
Across Suffolk County public schools, the enrollment-weighted student-teacher ratio is approximately 11.8 to 1.

Suffolk County school rankings

Largest schoolsAll rankings →
DATA · Census ACS 5-year · NCES Common Core of Data