14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 34953 | Port Saint Lucie | 78,558 |
| 34983 | Port Saint Lucie | 45,943 |
| 34952 | Port Saint Lucie | 41,779 |
| 34986 | Port Saint Lucie | 29,319 |
| 34982 | Fort Pierce | 26,727 |
| 34984 | Port Saint Lucie | 18,691 |
| 34950 | Fort Pierce | 17,623 |
| 34951 | Fort Pierce | 16,853 |
| 34987 | Port Saint Lucie | 14,507 |
| 34947 | Fort Pierce | 12,992 |
| 34949 | Fort Pierce | 7,993 |
| 34981 | Fort Pierce | 6,703 |
| 34946 | Fort Pierce | 5,825 |
| 34945 | Fort Pierce | 5,608 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in St. Lucie County, Florida (US Census).