- Saint George
- Sanford
- Seaside
- Silver Lake
- Spring Lake
- Springfield
- Saint Cloud
- San Antonio
- Solana
- South Pasadena
- Southgate
- Sams Island (historical)
- South Island
- South Oyster Island
- South Sister Island
- S and K Mobile Home Park
- S P Mobile Home Park
- S S Mobile Park
- Sabal Palm Court Mobile Home Park
- Sabal Palm Mobile Home Park
- Sabal Palms Estates
- Sable Cove
- Saddle Hammock
- Saddle Hammock
- Saddle Key
- Saddle Oak Club
- Saddle Oak Club Mobile Home Park
- Saddle Bunch Keys
- Saddlehill Key
- Saffold Estates