For the 2025 school year, there are 19 public high schools serving 6,742 students in St. Lawrence County, NY.
The top ranked public high schools in St. Lawrence County, NY are Potsdam Senior High School, H C Williams Senior High School and Norwood-norfolk School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
St. Lawrence County, NY public high schools have an average math proficiency score of 54% (versus the New York public high school average of 67%), and reading proficiency score of 52% (versus the 59% statewide average). High schools in St. Lawrence County have an average ranking of 3/10, which is in the bottom 50% of New York public high schools.
St. Lawrence County, NY public high school have a Graduation Rate of 85%, which is less than the New York average of 88%.
The school with highest graduation rate is Potsdam Senior High School, with 90-94% graduation rate. Read more about public school graduation rate statistics in New York or national school graduation rate statistics.
Minority enrollment is 6% of the student body (majority American Indian and Hispanic), which is less than the New York public high school average of 61% (majority Hispanic).
Best Public High Schools in St. Lawrence County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Potsdam Senior High School
(Math: 90-94% | Reading: 90-94% )
Rank:
Rank:
10/
Top 5%10
29 Leroy St
Potsdam, NY 13676
(315) 265-2000
Potsdam, NY 13676
(315) 265-2000
Grades: 9-12
| 411 students
Rank: #22.
H C Williams Senior High School
(Math: ≥95% | Reading: ≥80%)
Rank:
Rank:
10/
Top 5%10
99 State St
Canton, NY 13617
(315) 386-8561
Canton, NY 13617
(315) 386-8561
Grades: 9-12
| 340 students
Rank: #3 - 43. - 4.
Norwood-norfolk School
(Math: ≥90% | Reading: ≥80%)
Rank:
Rank:
10/
Top 10%10
7852 State Hwy 56
Norwood, NY 13668
(315) 353-6631
Norwood, NY 13668
(315) 353-6631
Grades: 9-12
| 312 students
Rank: #3 - 43. - 4.
Saint Lawrence High School
(Math: ≥90% | Reading: ≥80%)
Rank:
Rank:
10/
Top 10%10
1039 State Hwy 11c
Brasher Falls, NY 13613
(315) 389-5131
Brasher Falls, NY 13613
(315) 389-5131
Grades: 9-12
| 288 students
Rank: #55.
Gouverneur High School
(Math: 80-84% | Reading: 80-84%)
Rank:
Rank:
10/
Top 10%10
113 E Barney St
Gouverneur, NY 13642
(315) 287-1900
Gouverneur, NY 13642
(315) 287-1900
Grades: 9-12
| 462 students
Rank: #66.
Massena Senior High School
(Math: 90-94% | Reading: 60-79%)
Rank:
Rank:
9/
Top 20%10
84 Nightengale Ave
Massena, NY 13662
(315) 764-3710
Massena, NY 13662
(315) 764-3710
Grades: 4-12
| 797 students
Rank: #77.
Parishville-hopkinton Junior-senior High School
(Math: 55-59% | Reading: 60-69%)
Rank:
Rank:
8/
Top 30%10
12 County Rt 47
Parishville, NY 13672
(315) 265-4642
Parishville, NY 13672
(315) 265-4642
Grades: 7-12
| 158 students
Rank: #88.
Colton-pierrepont Central School
(Math: 55-59% | Reading: 60-64%)
Rank:
Rank:
8/
Top 30%10
4921 State Hwy 56
Colton, NY 13625
(315) 262-2100
Colton, NY 13625
(315) 262-2100
Grades: PK-12
| 381 students
Rank: #99.
Ogdensburg Free Academy
(Math: 49% | Reading: 57%)
Rank:
Rank:
7/
Top 50%10
1100 State St
Ogdensburg, NY 13669
(315) 393-0900
Ogdensburg, NY 13669
(315) 393-0900
Grades: 7-12
| 675 students
Rank: #1010.
Morristown Central School
(Math: 40-44% | Reading: 50-54%)
Rank:
Rank:
6/
Top 50%10
408 Gouverneur St
Morristown, NY 13664
(315) 375-8814
Morristown, NY 13664
(315) 375-8814
Grades: PK-12
| 316 students
Rank: #1111.
Heuvelton Central School
(Math: 44% | Reading: 51%)
Rank:
Rank:
6/
Top 50%10
87 Washington St
Heuvelton, NY 13654
(315) 344-2414
Heuvelton, NY 13654
(315) 344-2414
Grades: PK-12
| 553 students
Rank: #1212.
Madrid-waddington Junior-senior High School
(Math: 45-49% | Reading: 45-49%)
Rank:
Rank:
6/
Top 50%10
2582 State Hwy 345
Madrid, NY 13660
(315) 322-5746
Madrid, NY 13660
(315) 322-5746
Grades: 6-12
| 314 students
Rank: #1313.
Clifton-fine Junior-senior High School
(Math: 30-39% | Reading: 50-59%)
Rank:
Rank:
5/
Bottom 50%10
11 Hall Ave
Star Lake, NY 13690
(315) 848-3333
Star Lake, NY 13690
(315) 848-3333
Grades: 7-12
| 121 students
Rank: #1414.
Lisbon Central School
(Math: 43% | Reading: 44%)
Rank:
Rank:
5/
Bottom 50%10
6866 County Rt 10
Lisbon, NY 13658
(315) 393-4951
Lisbon, NY 13658
(315) 393-4951
Grades: PK-12
| 546 students
Rank: #1515.
Hammond Central School
(Math: 40-44% | Reading: 40-44%)
Rank:
Rank:
5/
Bottom 50%10
51 S Main St
Hammond, NY 13646
(315) 324-5931
Hammond, NY 13646
(315) 324-5931
Grades: PK-12
| 228 students
Rank: #1616.
Edwards-knox Junior-senior High School
(Math: 40-44% | Reading: 25-29%)
Rank:
Rank:
3/
Bottom 50%10
2512 County Route 24
Hermon, NY 13652
(315) 562-8131
Hermon, NY 13652
(315) 562-8131
Grades: 7-12
| 225 students
Rank: #1717.
Hermon-dekalb Central School
(Math: 25-29% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
709 E Dekalb Rd
De Kalb Junction, NY 13630
(315) 347-3442
De Kalb Junction, NY 13630
(315) 347-3442
Grades: PK-12
| 371 students
Rank: n/an/a
Saint Lawrence Psychiatric Center Children & Youth Services
Special Education School
1 Chimney Point Dr
Ogdensburg, NY 13669
(315) 541-2565
Ogdensburg, NY 13669
(315) 541-2565
Grades: 5-12
| 19 students
Rank: n/an/a
Saint Lawrence-lewis Boces
Special Education School
40 W Main St
Canton, NY 13617
(315) 386-4504
Canton, NY 13617
(315) 386-4504
Grades: K-12
| 225 students
St. Lawrence County 九游体育s (Closed)
School
Location
Grades
Students
2582 State Highway 345
Madrid, NY 13660
(315) 322-5634
Madrid, NY 13660
(315) 322-5634
Grades: PK-5
| 360 students
4921 State Hwy 56
Colton, NY 13625
(315) 262-2100
Colton, NY 13625
(315) 262-2100
Grades: PK-6
| 185 students
3845 State Hwy 58
Gouverneur, NY 13642
(315) 287-1949
Gouverneur, NY 13642
(315) 287-1949
Grades: K-5
| 120 students
Gouverneur Correctional Facilty (Closed 2008)
Alternative School
Scotch Settlement Rd
Gouverneur, NY 13642
(315) 287-7351
Gouverneur, NY 13642
(315) 287-7351
Grades: Inquire with school
| n/a students
29 Leroy Street
Potsdam, NY 13676
(315) 265-2000
Potsdam, NY 13676
(315) 265-2000
Grades: 5-8
| 452 students
P.o. Box 67
Madrid, NY 13660
(315) 322-5634
Madrid, NY 13660
(315) 322-5634
Grades: PK-5
| 367 students
Ogdensburg Correctional Facility (Closed 2008)
Alternative School
One Correction Way
Ogdensburg, NY 13669
(315) 393-0281
Ogdensburg, NY 13669
(315) 393-0281
Grades: Inquire with school
| n/a students
1100 State St
Ogdensburg, NY 13669
(315) 393-0900
Ogdensburg, NY 13669
(315) 393-0900
Grades: 9-12
| 701 students
Riverview Correction Facility (Closed 2008)
Alternative School
1110 Tibbits Ave
Ogdensburg, NY 13669
(315) 393-8400
Ogdensburg, NY 13669
(315) 393-8400
Grades: Inquire with school
| n/a students
St. Lawrence Chldrn & Youth Svcs (Closed 2008)
Special Education School
1 Chimney Point Drive
Ogdensburg, NY 13669
(315) 393-3000
Ogdensburg, NY 13669
(315) 393-3000
Grades: 2-11
| 16 students
St. Lawrence Correctional Facility Elementary School (Closed 2016)
Alternative School
17 Commerce Lane
Canton, NY 13617
(315) 379-2430
Canton, NY 13617
(315) 379-2430
Grades: 9-11
| 2 students
615 Franklin St
Ogdensburg, NY 13669
(315) 393-6271
Ogdensburg, NY 13669
(315) 393-6271
Grades: K-2
| 116 students
25 Wilson St
Gouverneur, NY 13642
(315) 287-3200
Gouverneur, NY 13642
(315) 287-3200
Grades: 3-4
| 222 students
Frequently Asked Questions
What are the top ranked public high schools in St. Lawrence County, NY?
The top ranked public high schools in St. Lawrence County, NY include Potsdam Senior High School, H C Williams Senior High School and Norwood-norfolk School.
How many public high schools are located in St. Lawrence County?
19 public high schools are located in St. Lawrence County.
What is the racial composition of students in St. Lawrence County?
St. Lawrence County public high schools minority enrollment is 6% of the student body (majority American Indian and Hispanic), which is less than the New York public high schools average of 61% (majority Hispanic).
Which public high schools in St. Lawrence County are often viewed compared to one another?
Popular comparisons of public high schools in St. Lawrence County include: Heuvelton Central School vs. Lisbon Central School, Ogdensburg Free Academy vs. Lisbon Central School, Potsdam Senior High School vs. H C Williams Senior High School
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