Syosset Senior High School had the highest enrollment among Nassau County schools, welcoming 2,400 students during the 2024-25 academic year, according to the New York State Education Department.
Data also showed that most of the students were Asian or Pacific Islanders, representing 50.3% of Syosset Senior High School’s total enrollment.
Among the 306 schools in Nassau County, Freeport High School ranked second in enrollment numbers with 2,244 students, while Uniondale High School welcomed 2,097 students and came in third in the 2024-25 school year.
Syosset Senior High School is part of Syosset Central School District, which roughly covers 10 schools within Nassau County and has a main office in Syosset.
In the previous school year, Syosset Senior High School also had the highest number of students among Nassau County schools.
New York has roughly one teacher for every 11 students, which is better than the national average of one teacher for every 15 students. A lower student-to-teacher ratio has been found to improve students’ school performance.
Enrollment in Syosset Senior High School Over 4 Years
Enrollment in Nassau County Schools During 2024-25 School Year
| School name | City | Total School Enrollment |
|---|---|---|
| Syosset Senior High School | Syosset | 2,400 |
| Freeport High School | Freeport | 2,244 |
| Uniondale High School | Uniondale | 2,097 |
| Hempstead High School | Hempstead | 1,878 |
| Hicksville High School | Hicksville | 1,825 |
| Plainview-Old Bethpage/Jfk High School | Plainview | 1,720 |
| New Hyde Park Memorial High School | New Hyde Park | 1,711 |
| Farmingdale Senior High School | Farmingdale | 1,704 |
| School 7-Oceanside Senior High School | Oceanside | 1,668 |
| H. Frank Carey High School | Franklin Square | 1,644 |
| Paul D. Schreiber Senior High School | Port Washington | 1,643 |
| Westbury High School | Old Westbury | 1,574 |
| Sewanhaka High School | Floral Park | 1,573 |
| East Meadow High School | East Meadow | 1,544 |
| Herricks High School | New Hyde Park | 1,534 |
| Elmont Memorial High School | Elmont | 1,492 |
| Berner Middle School | Massapequa | 1,487 |
| Baldwin Senior High School | Baldwin | 1,470 |
| Massapequa High School | Massapequa | 1,406 |
| Great Neck South High School | Great Neck | 1,362 |
| Floral Park Memorial High School | Floral Park | 1,308 |
| Gen Douglas Macarthur Senior High School | Levittown | 1,295 |
| Jericho Senior High School | Jericho | 1,260 |
| Valley Stream North High School | Franklin Square | 1,260 |
| Long Beach High School | Long Beach | 1,252 |
| Valley Stream South High School | Valley Stream | 1,229 |
| Sanford H. Calhoun High School | Merrick | 1,225 |
| Hicksville Middle School | Hicksville | 1,216 |
| Carrie Palmer Weber Middle School | Port Washington | 1,213 |
| Wellington C. Mepham High School | Bellmore | 1,211 |
| Howitt School | Farmingdale | 1,180 |
| Great Neck North High School | Great Neck | 1,155 |
| Woodland Middle School | East Meadow | 1,139 |
| Roosevelt High School | Roosevelt | 1,124 |
| Valley Stream Central High School | Valley Stream | 1,121 |
| Garden City High School | Garden City | 1,095 |
| Herricks Middle School | Albertson | 1,094 |
| Mineola High School | Garden City Park | 1,090 |
| John F. Kennedy High School | Bellmore | 1,089 |
| Roslyn High School | Roslyn Heights | 1,086 |
| Glen Cove High School | Glen Cove | 1,060 |
| George W. Hewlett High School | Hewlett | 1,051 |
| Division Avenue Senior High School | Levittown | 1,043 |
| Garden City Middle School | Garden City | 1,034 |
| Manhasset Secondary School | Manhasset | 1,032 |
| Baldwin Middle School | Baldwin | 1,007 |
| Bethpage Senior High School | Bethpage | 995 |
| South Side High School | Rockville Centre | 962 |
| Plainview-Old Bethpage Middle School | Plainview | 953 |
| H. B. Thompson Middle School | Syosset | 951 |
| Westbury Middle School | Westbury | 945 |
| Valley Stream Memorial Junior High School | Valley Stream | 937 |
| John W. Dodd Middle School | Freeport | 924 |
| Grand Avenue Middle School | Bellmore | 916 |
| Floral Park-Bellerose School | Floral Park | 905 |
| Jonas E. Salk Middle School | Levittown | 899 |
| W. Tresper Clarke High School | Westbury | 898 |
| Bowling Green School | Westbury | 895 |
| Caroline G. Atkinson School | Freeport | 882 |
| Plainedge Senior High School | Massapequa | 857 |
| Lynbrook Senior High School | Lynbrook | 846 |
| Merrick Avenue Middle School | Merrick | 843 |
| Mcvey Elementary School | East Meadow | 838 |
| Great Neck South Middle School | Great Neck | 833 |
| Wantagh Senior High School | Wantagh | 826 |
| Jericho Middle School | Jericho | 824 |
| Woodward Parkway Elementary School | Farmingdale | 815 |
| West Hempstead High School | West Hempstead | 806 |
| Munsey Park Elementary School | Manhasset | 803 |
| Roslyn Middle School | Roslyn Heights | 803 |
| South Side Middle School | Rockville Centre | 803 |
| South Woods Middle School | Syosset | 802 |
| School 9M-Oceanside Middle School | Oceanside | 801 |
| Barnum Woods School | East Meadow | 797 |
| H. B. Mattlin Middle School | Plainview | 783 |
| Washington Street School | Franklin Square | 782 |
| North Shore Senior High School | Glen Head | 775 |
| Lakeville Elementary School | Great Neck | 772 |
| Wisdom Lane Middle School | Levittown | 765 |
| Clara H. Carlson School | Elmont | 764 |
| Lawrence Senior High School | Cedarhurst | 763 |
| John F. Kennedy Middle School | Bethpage | 759 |
| Alverta B. Gray Schultz Middle School | Hempstead | 748 |
| Shaw Avenue School | Valley Stream | 739 |
| California Avenue Elementary School | Uniondale | 732 |
| Great Neck North Middle School | Great Neck | 728 |
| Island Trees Middle School | Levittown | 724 |
| Dutch Broadway School | Elmont | 714 |
| Island Trees High School | Levittown | 703 |
| Saw Mill Road School | North Bellmore | 700 |
| Birch Lane Elementary School | Massapequa Park | 696 |
| Robert M. Finley Middle School | Glen Cove | 691 |
| Wheatley School | Old Westbury | 689 |
| John Lewis Childs School | Floral Park | 675 |
| Wantagh School | Wantagh | 672 |
| Long Beach Middle School | Long Beach | 664 |
| Washington Rose School | Roosevelt | 664 |
| Clarke Middle School | Westbury | 663 |
| East Broadway School | Seaford | 662 |
| Plainedge Middle School | Bethpage | 660 |
| Norman J. Levy Lakeside School | Merrick | 654 |
| Mineola Middle School | Mineola | 653 |
| E. M. Baker School | Great Neck | 651 |
| Seaford Senior High School | Seaford | 650 |
| Wantagh Middle School | Wantagh | 647 |
| Covert Avenue School | Elmont | 646 |
| Woodmere Middle School | Hewlett | 643 |
| North Shore Middle School | Glen Head | 641 |
| Turtle Hook Middle School | Uniondale | 638 |
| Stratford Avenue School | Garden City | 638 |
| Shelter Rock Elementary School | Manhasset | 631 |
| Malverne Senior High School | Malverne | 625 |
| School 6-Kindergarten Center | Oceanside | 625 |
| Stewart School | Garden City | 624 |
| Lawrence Road Middle School | Hempstead | 622 |
| Stratford Road School | Plainview | 621 |
| Carle Place Middle Senior High School | Carle Place | 616 |
| Meadow Elementary School | Baldwin | 613 |
| Northern Parkway Elementary School | Uniondale | 613 |
| Wheeler Avenue School | Valley Stream | 608 |
| Abbey Lane School | Levittown | 607 |
| Denton Avenue School | New Hyde Park | 599 |
| Howell Road School | Valley Stream | 599 |
| Polk Street School | Franklin Square | 594 |
| Birch School | Merrick | 591 |
| Locust Valley High School | Locust Valley | 584 |
| Harbor Hill School | Greenvale | 582 |
| Parkway School | East Meadow | 570 |
| John Philip Sousa Elementary School | Port Washington | 564 |
| Northside School | Levittown | 560 |
| East Rockaway Junior-Senior High School | East Rockaway | 557 |
| Park Avenue School | Westbury | 556 |
| P.S. 256 | Syosset | 555 |
| East Hills Elementary School | Roslyn Heights | 551 |
| Reinhard Early Childhood Center | Bellmore | 550 |
| Searingtown School | Albertson | 549 |
| Seaford Harbor School | Seaford | 544 |
| Gardiners Avenue School | Levittown | 542 |
| Manhasset Middle School | Manhasset | 541 |
| Albany Avenue Elementary School | North Massapequa | 536 |
| Northwest Elementary School | Amityville | 525 |
| Charles E. Schwarting School | Massapequa | 524 |
| East Lake Elementary School | Massapequa Park | 523 |
| Seaford Middle School | Seaford | 522 |
| Saddle Rock School | Great Neck | 519 |
| Leo F. Giblyn School | Freeport | 519 |
| Gotham Avenue School | Elmont | 515 |
| Bayview Avenue School | Freeport | 515 |
| Drexel Avenue School | Westbury | 513 |
| Fairfield Elementary School | Massapequa | 513 |
| Michael F. Stokes School | Levittown | 511 |
| North Side School | East Williston | 510 |
| Walnut Street Elementary School | Uniondale | 505 |
| Manorhaven Elementary School | Port Washington | 499 |
| Unqua Elementary School | Massapequa | 496 |
| Mhs Ames Campus | Massapequa | 495 |
| Central Boulevard Elementary School | Bethpage | 491 |
| Camp Avenue School | Merrick | 491 |
| Mckenna Elementary School | Massapequa Park | 485 |
| John Street School | Franklin Square | 483 |
| Center Street School | Williston Park | 482 |
| Smith Street Elementary School | Uniondale | 476 |
| Powells Lane School | Westbury | 476 |
| Lawrence Elementary School at Broadway Campus | Lawrence | 475 |
| New Hyde Park Road School | New Hyde Park | 475 |
| Guggenheim Elementary School | Port Washington | 474 |
| John H. West School | Bethpage | 474 |
| John J. Daly Elementary School | Port Washington | 470 |
| Seaford Manor School | Seaford | 468 |
| Lido Elementary School | Long Beach | 468 |
| Judy Jacobs Parkway Elementary School | Plainview | 467 |
| Hewitt School | Rockville Centre | 465 |
| Lindell Boulevard School | Long Beach | 462 |
| Centennial Avenue Elementary School | Roosevelt | 461 |
| Robbins Lane Elementary School | Syosset | 460 |
| Old Mill Road School | Merrick | 460 |
| Pasadena Elementary School | Plainview | 455 |
| Ulysses Byas Elementary School | Roosevelt | 455 |
| Chatterton School | Merrick | 453 |
| School 5 | Oceanside | 452 |
| Francis X. Hegarty Elementary School | Island Park | 451 |
| Berry Hill Elementary School | Syosset | 450 |
| School 3 | Oceanside | 447 |
| Hillside Grade School | New Hyde Park | 446 |
| Eastplain School | N Massapequa | 445 |
| Prospect Elementary School | Hempstead | 441 |
| John G. Dinkelmeyer School | North Bellmore | 440 |
| Roosevelt Middle School | Roosevelt | 440 |
| Barack Obama Elementary School | Hempstead | 439 |
| Meadowbrook Elementary School | East Meadow | 439 |
| Jackson Main Elementary School | Hempstead | 438 |
| James A. Dever School | Valley Stream | 437 |
| Cantiague Elementary School | Jericho | 436 |
| Jackson Avenue School | Mineola | 436 |
| Lee Avenue School | Hicksville | 436 |
| Marion Street School | Lynbrook | 435 |
| South Salem Elementary School | Port Washington | 435 |
| School 8 | Oceanside | 433 |
| South Grove Elementary School | Syosset | 433 |
| Archer Street School | Freeport | 433 |
| New Visions Elementary School | Freeport | 433 |
| George A. Jackson School | Jericho | 432 |
| Plaza Elementary School | Baldwin | 429 |
| Howard T. Herber Middle School | Malverne | 428 |
| John F. Kennedy School | Great Neck | 427 |
| Locust Valley Middle School | Locust Valley | 426 |
| Lawrence Primary School at #2 School | Inwood | 419 |
| Vernon School | East Norwich | 419 |
| Baylis Elementary School | Plainview | 416 |
| Dryden Street School | Westbury | 415 |
| Lynbrook South Middle School | Lynbrook | 414 |
| Oyster Bay High School | Oyster Bay | 413 |
| Willow Road School | Franklin Square | 410 |
| Rushmore Avenue School | Carle Place | 407 |
| Old Bethpage School | Old Bethpage | 407 |
| School 2 | Oceanside | 407 |
| Alden Terrace School | Valley Stream | 405 |
| Old Country Road School | Hicksville | 394 |
| Walt Whitman Elementary School | Woodbury | 391 |
| East Street School | Hicksville | 389 |
| David Paterson School | Hempstead | 388 |
| Forest Lake School | Wantagh | 388 |
| Wilson School | Rockville Centre | 387 |
| Glenwood Landing Elementary School | Glen Head | 386 |
| West End School | Lynbrook | 386 |
| Franklin Early Childhood Center | Hewlett | 386 |
| Clearstream Avenue School | Valley Stream | 385 |
| Maurice W. Downing Primary School | Malverne | 382 |
| Glen Head Elementary School | Glen Head | 379 |
| Village Elementary School | Syosset | 379 |
| Robert W. Carbonaro School | Valley Stream | 376 |
| Summit Lane School | Levittown | 376 |
| Willets Road School | Roslyn Heights | 372 |
| Hewlett Elementary School | Hewlett | 369 |
| Deasy School | Glen Cove | 367 |
| Davison Avenue Intermediate School | Lynbrook | 366 |
| Sea Cliff Elementary School | Sea Cliff | 360 |
| Joseph Mcneil School | Hempstead | 359 |
| Lockhart Elementary School | Massapequa | 359 |
| Kramer Lane Elementary School | Plainview | 358 |
| Brooklyn Avenue School | Valley Stream | 357 |
| Landing School | Glen Cove | 355 |
| Charles Campagne School | Bethpage | 354 |
| Northside Elementary School | Farmingdale | 353 |
| Stewart Manor School | Stewart Manor | 342 |
| West Elementary School | Long Beach | 340 |
| George Washington School | West Hempstead | 339 |
| Newbridge Road School | North Bellmore | 336 |
| Gribbin School | Glen Cove | 334 |
| School 9E-Boardman Elementary School | Oceanside | 333 |
| Forest Road School | Valley Stream | 332 |
| Cornwell Avenue School | West Hempstead | 331 |
| Rhame Avenue Elementary School | East Rockaway | 330 |
| Connolly School | Glen Cove | 329 |
| Martin Avenue Elementary School | Bellmore | 328 |
| Park Avenue School | North Merrick | 324 |
| J. Fred Sparke School | Levittown | 323 |
| Mandalay School | Wantagh | 321 |
| Manor Oaks William Bowie School | New Hyde Park | 320 |
| Winthrop Avenue School | Bellmore | 312 |
| Lee Road School | Wantagh | 312 |
| Garden City Park School | Garden City Park | 310 |
| Meadow Drive School | Albertson | 309 |
| Lawrence Middle School at Broadway Campus | Lawrence | 309 |
| Theodore Roosevelt School | Oyster Bay | 308 |
| Roslyn Heights Elementary School | Roslyn Heights | 307 |
| Hampton Street School | Mineola | 306 |
| Early Childhood Center | New Hyde Park | 304 |
| Grand Avenue Elementary School | North Baldwin | 304 |
| William L. Buck School | Valley Stream | 303 |
| Willits Elementary School | Syosset | 298 |
| Ogden Elementary School | Valley Stream | 294 |
| Steele Elementary School | Baldwin | 293 |
| William S. Covert School | South Hempstead | 286 |
| Harold D. Fayette School | North Merrick | 286 |
| Lynbrook North Middle School | Lynbrook | 284 |
| Cherry Lane School | Carle Place | 283 |
| Jeffrey Ratner-Robert Seaman Elementary School | Jericho | 278 |
| Woodland Avenue School | Hicksville | 277 |
| Shore Road School | Bellmore | 273 |
| East Elementary School | Long Beach | 271 |
| Fork Lane School | Hicksville | 270 |
| School 4 | Oceanside | 264 |
| Island Park Lincoln Orens Middle School | Island Park | 264 |
| Burns Avenue School | Hicksville | 263 |
| Lenox Elementary School | Baldwin | 261 |
| Centre Avenue Elementary School | East Rockaway | 239 |
| Brookside Elementary School | Baldwin | 236 |
| Locust Valley Intermediate School | Locust Valley | 226 |
| Watson School | Rockville Centre | 224 |
| Dutch Lane School | Hicksville | 216 |
| West Side School | Syosset | 215 |
| Ann Macarthur Primary | Locust Valley | 211 |
| Homestead School | Garden City | 205 |
| Waverly Park School | East Rockaway | 197 |
| Lawrence Early Childhood Center at #4 School | Inwood | 189 |
| Hemlock School | Garden City | 184 |
| Bayville Primary | Bayville | 177 |
| Columbus Avenue School | Freeport | 175 |
| Bayville Intermediate School | Bayville | 166 |
| Kindergarten Center | Lynbrook | 163 |
| Locust School | Garden City | 151 |
| Riverside School | Rockville Centre | 149 |
| Chestnut Street School | West Hempstead | 120 |
| Village School | Great Neck | 49 |
| Castleton Academy High School of Oceanside | Oceanside | 35 |
Information in this article was obtained from the New York State Education Department. The source data can be found here.
