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Seaford Union Free School District
- Seaford Middle School Calendar
- Seaford Senior High School Calendar
- Seaford Harbor School Calendar
- Seaford Manor School Calendar
Other districts in New York state
- Syosset Central School District
- SUCCESS ACADEMY CHARTER SCHOOL-HELL'S KITCHEN
- Somers Central School District
- Southampton Union Free School District
- Southwestern Central School District At Jamestown
- Stockbridge Valley Central School District
- Sachem Central School District
- Sewanhaka Central High School District
- Schenectady City School District