Carolina
Comunity Index
| COMMUNITY | LOCATOR | KEY | CAROLINA AREA | STATE |
| Oak Island | Southport | J | Southern Coast | NC |
| Oak Ridge | Greensboro | D | Northern Foothills | NC |
| Oakboro | Albemarle | E | Southern Foothills | NC |
| Ocean Drive | N. Myrtle Beach | R | Grand Strand | SC |
| Ocean Isle Beach | Shallotte | J | Southern Coast | NC |
| Ocracoke | Ocracoke | H | Northern Coast | NC |
| Olanta | Olanta | M | Pee Dee | SC |
| Old Fort | Marion | B | Central Mountains | NC |
| Old Salem | Winston-Salem | D | Northern Foothills | NC |
| Olivia | Sanford | G | Southern Heartland | NC |
| Orangeburg | Orangeburg | S | Santee Cooper | SC |
| Oriental | Oriental | I | Central Coast | NC |
| Oxford | Oxford | F | Northern Heartland | NC |
| COMMUNITY | LOCATOR | KEY | CAROLINA AREA | STATE |