County directory · New York · 2026–27
School districts in St. Lawrence County, NY
St. Lawrence County has 17 regular public school districts, enrolling 13,671 students in 2024–25. The largest is Massena Central School District (2,499 students, 18% of the county), followed by Gouverneur Central School District and Ogdensburg City School District. All 17 offer kindergarten. New York sets no statewide kindergarten cutoff.
The 17 districts, largest first
| District and office | Grades | Schools | Students | Kindergarten | District office contact |
|---|---|---|---|---|---|
| Massena Central School District 84 NIGHTENGALE AVE, MASSENA | Pre-K–12 | 5 | 2,499 | 190 | (315) 764-3700 |
| Gouverneur Central School District 133 E BARNEY ST, GOUVERNEUR also serves Jefferson County | Pre-K–12 | 3 | 1,428 | 98 | (315) 287-4870 |
| Ogdensburg City School District 1100 STATE ST, OGDENSBURG | Pre-K–12 | 3 | 1,358 | 116 | (315) 393-0900 |
| Potsdam Central School District 29 LEROY ST, POTSDAM | Pre-K–12 | 3 | 1,325 | 84 | (315) 265-2000 |
| Canton Central School District 99 STATE ST, CANTON | Pre-K–12 | 3 | 1,067 | 61 | (315) 386-8561 |
| Brasher Falls Central School District 1039 STATE HWY 11C, BRASHER FALLS also serves Franklin County | Pre-K–12 | 3 | 966 | 60 | (315) 389-5131 |
| Norwood-Norfolk Central School District 7852 STATE HWY 56, NORWOOD | Pre-K–12 | 3 | 930 | 54 | (315) 353-6631 |
| Madrid-Waddington Central School District 2582 STATE HWY 345, MADRID | Pre-K–12 | 2 | 624 | 31 | (315) 322-5746 |
| Lisbon Central School District 6866 COUNTY RT 10, LISBON | Pre-K–12 | 1 | 559 | 38 | (315) 393-4951 |
| Heuvelton Central School District 87 WASHINGTON ST, HEUVELTON | Pre-K–12 | 1 | 533 | 31 | (315) 344-2414 |
| Edwards-Knox Central School District 2512 COUNTY ROUTE 24, HERMON | Pre-K–12 | 2 | 493 | 31 | (315) 562-8130 |
| Hermon-Dekalb Central School District 709 E DEKALB RD, DE KALB JUNCTION | Pre-K–12 | 1 | 381 | 28 | (315) 347-3442 |
| Colton-Pierrepont Central School District 4921 STATE HWY 56, COLTON | Pre-K–12 | 1 | 364 | 25 | (315) 262-2100 |
| Parishville-Hopkinton Central School District 12 COUNTY RT 47, PARISHVILLE | Pre-K–12 | 2 | 342 | 30 | (315) 265-4642 |
| Morristown Central School District 408 GOUVERNEUR ST, MORRISTOWN | Pre-K–12 | 1 | 318 | 19 | (315) 375-8814 |
| Clifton-Fine Central School District 11 HALL AVE, STAR LAKE | Pre-K–12 | 2 | 247 | 27 | (315) 848-3333 |
| Hammond Central School District 51 S MAIN ST, HAMMOND also serves Jefferson County | Pre-K–12 | 1 | 237 | 18 | (315) 324-5931 |
St. Lawrence County at a glance
Together the 17 districts run 37 schools from offices in 17 towns. The smallest by enrollment is Hammond Central School District, with 237 students; the median St. Lawrence County district has 559. By grade span: 17 Pre-K–12.
Kindergarten in 2024–25, counting the 17 districts that report a K grade: 941 children. The biggest kindergarten was Massena Central School District's, with 190; Ogdensburg City School District had 116, and the smallest, Hammond Central School District, had 18.
St. Lawrence County holds 17 of New York's 716 regular districts (2.4%) and 0.6% of its 2,338,849 public school students, ranking 8th of 62 counties by number of districts and 27th by enrollment. By size, 5 enroll 1,000 to 4,999 and 12 have fewer than 1,000 students, and the average school here has about 369 students.
3 districts reach past the county line: Gouverneur Central School District (into Jefferson County), Brasher Falls Central School District (into Franklin County) and Hammond Central School District (into Jefferson County).
Which district am I in?
Each district draws its own attendance zones, so your home address decides it, and with 3 of St. Lawrence County's districts crossing county lines the county alone won't. There is no address lookup here; ask the district. Each one's own site:
Massena Central School District · Gouverneur Central School District · Ogdensburg City School District · Potsdam Central School District · Canton Central School District · Brasher Falls Central School District · Norwood-Norfolk Central School District · Madrid-Waddington Central School District · Lisbon Central School District · Heuvelton Central School District · Edwards-Knox Central School District · Hermon-Dekalb Central School District · Colton-Pierrepont Central School District · Parishville-Hopkinton Central School District · Morristown Central School District · Clifton-Fine Central School District · Hammond Central School District
What grade will my child be in?
More in New York
Every New York district by county · New York kindergarten cutoff
More New York county directories: Broome County (11) · Cattaraugus County (13) · Chautauqua County (18) · Essex County (10) · Rensselaer County (12) · Saratoga County (12)