Founded in 1821, St. Johns County is one of 67 counties in the state of Florida.The city of St. Augustine is the county seat. With FIPS code of 109, St. Johns County has a population of 292,466 and area of 609 square miles (1,577 km2).
List of all cities in Saint Johns County, FL alphabetically
| City/Town | Postal Code | Area Code |
| Anastasia Island, FL | 32080 | 904 |
| Armstrong, FL | 32033 | 904 |
| Elkton, FL | 32033 | 904 |
| Fruit Cove, FL | 32259 | 904 |
| Hastings, FL | 32145 | 904 |
| Jacksonville, FL | 32259 | 904 |
| 32260 | 904 | |
| Julington Creek, FL | 32259 | 904 |
| Pnte Vdra Bch, FL | 32082 | 904 |
| Ponte Vedra, FL | 32004 | 904 |
| 32081 | 904 | |
| 32082 | 904 | |
| Ponte Vedra Beach, FL | 32004 | 904 |
| 32081 | 904 | |
| 32082 | 904 | |
| Saint Augustine, FL | 32080 | 904 |
| 32084 | 904 | |
| 32085 | 904 | |
| 32086 | 904 | |
| 32092 | 904 | |
| 32095 | 904 | |
| Saint Johns, FL | 32259 | 904 |
| 32260 | 904 | |
| Switzerland, FL | 32259 | 904 |
| Town of Nocatee, FL | 32081 | 904 |
Map of Cities in Saint Johns County, FL
