S
- Sackville Christian Academy
- Saint John High School
- Saint Mary's Academy
- Salem Elementary School
- Salisbury Elementary School
- Seawood School
- Shediac Cape School
- Simonds High School
- Sir James Dunn Academy
- Somerville Christian Academy
- Southern Carleton Elementary School
- Southern Victoria High School
- St. Andrews Elementary School
- Stanley Regional High School
- St. George Elementary School
- St. John the Baptist/King Edward School
- St. John Valley Mennonite School
- St. Malachy's Memorial High School
- St. Martins School
- St. Patrick's School
- St. Rose School
- St. Stephen Elementary School
- St. Stephen High School
- St. Stephen Middle School
- Sugarloaf Senior High School
- Summerhill Street Elementary School
- Sunbury West School
- Sunny Brae Middle School
- Superior Middle School
- Sussex Christian School
- Sussex Corner Elementary School
- Sussex Elementary School
- Sussex Middle School
- Sussex Regional High School