Founded in 1905, St. Lucie County is one of 67 counties in the state of Florida. Historically, St. Lucie County was formed from Brevard. The city of Fort Pierce is the county seat. With FIPS code of 111, St. Lucie County has a population of 343,579 and area of 572 square miles (1,481 km2).
List of all cities in Saint Lucie County, FL alphabetically
| City/Town | Postal Code | Area Code |
| Fort Pierce, FL | 34945 | 772 |
| 34946 | 772 | |
| 34947 | 772 | |
| 34948 | 772 | |
| 34949 | 772 | |
| 34950 | 772 | |
| 34951 | 772 | |
| 34952 | 772 | |
| 34953 | 772 | |
| 34954 | 772 | |
| 34979 | 772 | |
| 34981 | 772 | |
| 34982 | 772 | |
| 34983 | 772 | |
| 34984 | 772 | |
| 34985 | 772 | |
| 34986 | 772 | |
| 34987 | 772 | |
| 34988 | 772 | |
| Hutchinson Island, FL | 34949 | 772 |
| Port Saint Lucie, FL | 34952 | 772 |
| 34953 | 772 | |
| 34983 | 772 | |
| 34984 | 772 | |
| 34985 | 772 | |
| 34986 | 772 | |
| 34987 | 772 | |
| 34988 | 772 | |
| Saint Lucie West, FL | 34953 | 772 |
| 34983 | 772 | |
| 34986 | 772 | |
| 34987 | 772 | |
| 34988 | 772 |
Map of Cities in Saint Lucie County, FL
