- Oakley Landing
- Oak Ridge
- Oakland Estates
- Ogden Hills
- Old Dominion Court
- Old Manor
- Old Mill Forest
- Orander Park
- Otterview Gardens
- Oakdale
- Oakdale
- Olivers Estates
- Owl Trap
- Oyster Cove
- Oakwood
- Ottobine
- Owen Corner
- Oak Grove Estates
- Oaklands
- Old Oaks
- Oranda
- Othma
- Oak Hill
- Oldtown
- Oak Lawn
- Old Trap
- Olivers Corner
- Otterdam Mobile Home Park
- O Bannon Land
- Oak Ridge