- Oak Forest Estates
- Oak Grove
- Oak Point Acres
- Oak Shadows
- Oaknoll
- Orchard Acres
- Otters Run
- Oxyoke Mobile Home Park
- Oak Lane Manor
- Oakdale
- Oakland
- Oakmont
- Oaktree Apartments
- Oakwood Hills
- Odessa Heights
- Ogletown
- Old Mill Manor
- Overlook Colony
- Overview Gardens
- Owls Nest
- Oak Acres
- Oak Drive
- Oak Forest Mobile Home Park
- Oak Grove
- Oak Hill
- Oak Meadows Mobile Home Park
- Oak Orchard
- Oak Orchard West Mobile Home Park
- Oakley
- Ocean Village