Altmar-Parish-Williamstown Central School District639 County Route 22, Parish, NY 13131
Mailing Address:P.O. Box 97 Altmar-Parish-Williamstown (APW) Central School District serving our community since 1960. The APW School District serves over 1,500 students that reside within a 180 square mile area. APW school buildings include the Altmar Elementary School, Parish Elementary School, Williamstown Elementary School, Middle School and High School. Located on the Southern side of the Tug Hill Plateau in Oswego County, the APW School District is nestled in the center of some of the most beautiful country Central New York has to offer. Our area is known for its access to hunting, fishing, hiking, camping and snowmobiling.