For the 2025 school year, there are 2 private schools serving 89 students in Lewis County, NY (there are 13 public schools, serving 4,161 public students). 2% of all K-12 students in Lewis County, NY are educated in private schools (compared to the NY state average of 15%).
100% of private schools in Lewis County, NY are religiously affiliated (most commonly Mennonite).
Private Schools in Lewis County (2025)
School
Location
Quick Facts
Denmark Mennonite School
(Mennonite)
10217 St Route 26
Lowville, NY 13367
(315) 212-4224
Lowville, NY 13367
(315) 212-4224
Gr: 1-7 | 8 students
River Valley Mennonite School
Alternative School (Mennonite)
5473 State Route 410
Castorland, NY 13620
(315) 493-0187
Castorland, NY 13620
(315) 493-0187
Gr: K-12 | 81 students Avg. class size: 7 students Sports: 4 | Extracurrculars: 2 Tuition listed
Lewis County Private Schools (Closed)
School
Location
Quick Facts
16568 County Route 161
Watertown, NY 13601
Watertown, NY 13601
Gr: 1-8 | 17 students
Crystal Light Mennonite School (Closed 2015)
(Mennonite)
9607 Highland Ave
Castorland, NY 13620
(315) 486-1302
Castorland, NY 13620
(315) 486-1302
Gr: 1-9 | 51 students
Frequently Asked Questions
How many private schools are located in Lewis County, NY?
2 private schools are located in Lewis County, NY.
What percentage of students in Lewis County go to private school?
2% of all K-12 students in Lewis County are educated in private schools (compared to the NY state average of 15%).
What percentage of private schools are religiously affiliated in Lewis County?
100% of private schools in Lewis County are religiously affiliated (most commonly Mennonite).
Recent Articles
7 Ways Kids Can Avoid Summer Brain Drain
The summer "Brain Drain," also known as the "Summer Slide" is a term commonly used by educators and parents alike to describe the learning loss that takes place for many students during summer months. We polled the experts and found the 7 best ways parents and kids can combat the problem head on.
What's Being Taught?
This article examines the academic offerings in American private high schools, discussing graduation requirements, college preparation, accreditation, and advanced programs like AP and IB. It emphasizes the importance of understanding a school's curriculum when choosing the right educational environment for a child.
Waldorf Schools
Waldorf schools offer a well thought out approach to K-12 education.