ZIP CodesZIP codes in St. Lucie County, Florida
St. Lucie County, Florida has 19 ZIP codes in this list, from 34945 to 34988. They cover 2 places, among them Fort Pierce and Port Saint Lucie.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 34945 | Fort Pierce | 217 | 27.438, -80.444 |
| 34946 | Fort Pierce | 15.2 | 27.501, -80.360 |
| 34947 | Fort Pierce | 9.7 | 27.449, -80.359 |
| 34948 | Fort Pierce | no area | 27.382, -80.409 |
| 34949 | Fort Pierce | 9.4 | 27.390, -80.261 |
| 34950 | Fort Pierce | 5.2 | 27.449, -80.338 |
| 34951 | Fort Pierce | 24.4 | 27.539, -80.405 |
| 34952 | Port Saint Lucie | 24.6 | 27.289, -80.298 |
| 34953 | Port Saint Lucie | 23.8 | 27.262, -80.379 |
| 34954 | Fort Pierce | no area | 27.382, -80.409 |
| 34979 | Fort Pierce | no area | 27.382, -80.409 |
| 34981 | Fort Pierce | 10.8 | 27.405, -80.362 |
| 34982 | Fort Pierce | 15.5 | 27.391, -80.325 |
| 34983 | Port Saint Lucie | 14.9 | 27.309, -80.345 |
| 34984 | Port Saint Lucie | 9.8 | 27.265, -80.339 |
| 34985 | Port Saint Lucie | no area | 27.294, -80.350 |
| 34986 | Port Saint Lucie | 18.8 | 27.322, -80.403 |
| 34987 | Port Saint Lucie | 114 | 27.261, -80.477 |
| 34988 | Port Saint Lucie | no area | 27.387, -80.504 |
The ZIP code areas of St. Lucie County add up to about 514 square miles of land (1,331 sq km) as the Census Bureau draws them. The largest is 34945 (Fort Pierce), with 217 square miles.
Places with more than one code here: Fort Pierce (11 codes), Port Saint Lucie (8 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Fort Pierce, FL 34945.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.