- Stop Keys
- Springville
- Suwannee Valley
- Sour Orange Hammock
- Southfort
- Sunrise Mobile Home Park
- Shired Island
- Stewart City
- Suwannee
- Saint Johns Park
- Saint Nicholas
- San Jose Forest
- San Marco
- San Pablo
- Sandalwood
- Sans Pareil
- Seaboard Mobile Home Park
- Senior Citizens Mobile Home Terrace
- Seven Pines Island
- Shady Oak Mobile Home Park
- Shady Rest
- Shawn Lane Mobile Home Park
- Shell Island
- Sherwood Forest
- Silver Dolphin Mobile Home Park
- Sisters Island
- South Jacksonville
- South Metro
- Southridge
- Southside Estates