- Shamrock Mobile Home Park
- Shawmut
- Sheffield Place
- Shiloh Canyon
- Ship Rock
- Sierra Estates Mobile Home Park
- Silver Bell Trailer Park
- Silver Spur Ranch
- Silver Spur Village
- Silvergate II
- Silvergate Trails
- Sincuidados
- Singing Spur Mobile Park
- Sky Ridge Mobile Homes
- Skyline Heights
- Sleepy Hollow Trailer Village
- Smurr
- Sonora Town
- South Mountain Trailer Park
- South Phoenix
- Southern Acres Mobile Home Park
- Southern Foothills Mobile Home Park
- Southern Palms Trailer Park
- Squaw Peak Terrace
- Stagecoach Trailer Park
- Stanwix
- Starlite Trailer Park
- Steeplechase
- Stewart Mountain Trailer Park
- Stonegate Crossing