S
- Sacramento State 1993–present
- Sacred Heart 1999–present
- St. Francis (Pa.) 1993–present
- St. John’s (N.Y.)* 1993–2002
- St. Mary’s (Cal.)* 1993–2003
- St. Peter’s* 1993–2006
- Sam Houston State 1986–present
- Samford 1989–present
- San Diego 1993–present
- Savannah State 2002–present
- Siena* 1993–2003
- South Alabama 2011
- South Carolina State 1978, 1980–present
- South Dakota 2008–present
- South Dakota State 2004–present
- South Florida 1997–2000
- Southeast Missouri State 1990–present
- Southeastern Louisiana 1980–1985; 2003–present
- Southern U. 1978–present
- Southern Illinois 1982–present
- Southern Utah 1993–present
- Stephen F. Austin 1986–present
- Stony Brook 1999–present
Read more about this topic: NCAA Men's Division I Football Championship Subdivision Alignment History