| District | City | Rating | Zip Codes |
|---|---|---|---|
| Colton-Pierrepont Central School District | Colton-Pierrepont Central | 8/10 Good · 78th pct | 3 |
| Potsdam Central School District | Potsdam Central | 8/10 Good · 71st pct | 4 |
| Canton Central School District | Canton Central | 7/10 Good · 63rd pct | 1 |
| Massena Central School District | Massena Central | 7/10 Good · 62nd pct | 2 |
| Heuvelton Central School District | Heuvelton Central | 6/10 Average · 60th pct | 3 |
| Lisbon Central School District | Lisbon Central | 6/10 Average · 57th pct | 1 |
| Morristown Central School District | Morristown Central | 6/10 Average · 53rd pct | 3 |
| Parishville-Hopkinton Central School District | Parishville-Hopkinton Central | 5/10 Average · 43rd pct | 1 |
| Hammond Central School District | Hammond Central | 5/10 Average · 40th pct | 2 |
| Madrid-Waddington Central School District | Madrid-Waddington Central | 4/10 Below Average · 35th pct | 3 |
| Hermon-DeKalb Central School District | Hermon-DeKalb Central | 3/10 Below Average · 26th pct | 2 |
| Brasher Falls Central School District | Brasher Falls Central | 3/10 Below Average · 20th pct | 5 |
| Norwood-Norfolk Central School District | Norwood-Norfolk Central | 2/10 Poor · 17th pct | 3 |
| Gouverneur Central School District | Gouverneur Central | 2/10 Poor · 16th pct | 3 |
| Clifton-Fine Central School District | Clifton-Fine Central | 2/10 Poor · 12th pct | 6 |
| Edwards-Knox Central School District | Edwards-Knox Central | 2/10 Poor · 12th pct | 2 |
School Districts in St. Lawrence County, New York
St. Lawrence County has 16 public school districts covering 44 zip codes. The top-rated district in St. Lawrence County is Colton-Pierrepont Central School District (8/10). Ratings are based on the share of students proficient in reading and math on state assessments (New York State tests 2023–24 for most districts), ranked against all districts in New York. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.