Top 10 Best Jefferson County Public High Schools (2024)

For the 2024 school year, there are 12 public high schools serving 6,357 students in Jefferson County, NY.
The top ranked public high schools in Jefferson County, NY are South Jefferson High School, Watertown Senior High School and Indian River High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Jefferson County, NY public high schools have an average math proficiency score of 66% (versus the New York public high school average of 78%), and reading proficiency score of 68% (versus the 76% statewide average). High schools in Jefferson County have an average ranking of 5/10, which is in the bottom 50% of New York public high schools.
Jefferson County, NY public high school have a Graduation Rate of 88%, which is more than the New York average of 87%.
The school with highest graduation rate is Thousand Islands High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in New York or national school graduation rate statistics.
Minority enrollment is 16% of the student body (majority Hispanic), which is less than the New York public high school average of 58% (majority Hispanic and Black).

Best Public High Schools in Jefferson County (2024)

School
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
South Jefferson High School
(Math: 90-94% | Reading: 90-94%)
Rank:
10/
10
Top 5%
11060 Us Rt 11
Adams, NY 13605
(315) 232-4531
Grades: 9-12
| 577 students
Rank: #22.
Watertown Senior High School
(Math: 89% | Reading: 92%)
Rank:
10/
10
Top 10%
1335 Washington St
Watertown, NY 13601
(315) 785-3800
Grades: 9-12
| 1,068 students
Rank: #33.
Indian River High School
(Math: ≥95% | Reading: ≥80%)
Rank:
10/
10
Top 10%
32925 Us Rt 11
Philadelphia, NY 13673
(315) 642-3427
Grades: 9-12
| 794 students
Rank: #44.
Carthage Senior High School
(Math: 90-94% | Reading: 70-74%)
Rank:
9/
10
Top 20%
36500 Nys Rt 26
Carthage, NY 13619
(315) 493-5030
Grades: 8-12
| 835 students
Rank: #55.
Thousand Islands High School
(Math: 90-94% | Reading: 60-79%)
Rank:
8/
10
Top 30%
8481 County Rt 9
Clayton, NY 13624
(315) 686-5594
Grades: 9-12
| 255 students
Rank: #66.
Sackets Harbor Central School
(Math: 50-54% | Reading: 70-74%)
Rank:
7/
10
Top 50%
215 S Broad St
Sackets Harbor, NY 13685
(315) 646-3575
Grades: PK-12
| 397 students
Rank: #77.
Alexandria Central High School
(Math: 55-59% | Reading: 60-64%)
Rank:
6/
10
Top 50%
34 Bolton Ave
Alexandria Bay, NY 13607
(315) 482-5113
Grades: 7-12
| 224 students
Rank: #88.
La Fargeville Central School
(Math: 55% | Reading: 61%)
Rank:
6/
10
Top 50%
20414 Sunrise Ave
La Fargeville, NY 13656
(315) 658-2241
Grades: PK-12
| 493 students
Rank: #99.
Lyme Central School
(Math: 50-54% | Reading: 50-54%)
Rank:
5/
10
Bottom 50%
11868 Academy St
Chaumont, NY 13622
(315) 649-2417
Grades: PK-12
| 330 students
Rank: #1010.
General Brown Junior-senior High School
(Math: 50% | Reading: 50-54%)
Rank:
5/
10
Bottom 50%
17643 Cemetery Rd
Dexter, NY 13634
(315) 779-2300
Grades: 7-12
| 634 students
Rank: #1111.
Belleville Henderson Central School
(Math: 43% | Reading: 57%)
Rank:
5/
10
Bottom 50%
8372 County Rt 75
Adams, NY 13605
(315) 846-5121
Grades: PK-12
| 500 students
Rank: n/an/a
Jefferson-lewis-hamilton-herkimer-oneida Boces
Special Education School
20104 State Rte 3
Watertown, NY 13601
(315) 779-7010
Grades: K-12
| 250 students
[+] Show Closed Public Schools in Jefferson County, NY

Jefferson County Public Schools (Closed)

School
Location
Grades
Students
Rt 12e Box 599
Cape Vincent, NY 13618
(315) 654-4100
Grades: Inquire with school
| 2 students
6 Institute St
Adams, NY 13605
(315) 232-4841
Grades: K-6
| 216 students
311 N Massey St
Watertown, NY 13601
Grades: n/a
| n/a students
Dry Hl
Watertown, NY 13601
(315) 782-7490
Grades: Inquire with school
| n/a students

Frequently Asked Questions

What are the top ranked public high schools in Jefferson County, NY?
The top ranked public high schools in Jefferson County, NY include South Jefferson High School, Watertown Senior High School and Indian River High School.
How many public high schools are located in Jefferson County, NY?
12 public high schools are located in Jefferson County, NY.
What is the racial composition of students in Jefferson County, NY?
Jefferson County, NY public high schools minority enrollment is 16% of the student body (majority Hispanic), which is less than the New York public high schools average of 58% (majority Hispanic and Black).

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