St. Lucie County, Florida ZIP codes
19 ZIP codes are in St. Lucie County, plus 3 that cross in from neighboring counties. It's part of the Port St. Lucie, FL metro area.
- ZIP codes
- 19
- Population in these ZIPs
- 355,354
- Avg. median income
- $72,200population-weighted
- Cities & towns
- 2
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in St. Lucie County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 34945 | Fort Pierce | 6,321 | $87,568 | $406,400 |
| 34946 | Fort Pierce | 6,852 | $40,315 | $247,100 |
| 34947 | Fort Pierce | 12,804 | $51,811 | $278,300 |
| 34948 PO Box | Fort Pierce | — | — | — |
| 34949 | Fort Pierce | 7,470 | $94,949 | $414,300 |
| 34950 | Fort Pierce | 17,461 | $30,400 | $188,200 |
| 34951 | Fort Pierce | 17,148 | $63,122 | $296,600 |
| 34952 | Port Saint Lucie | 42,655 | $61,628 | $317,900 |
| 34953 | Port Saint Lucie | 86,875 | $85,667 | $398,000 |
| 34954 PO Box | Fort Pierce | — | — | — |
| 34979 PO Box | Fort Pierce | — | — | — |
| 34981 | Fort Pierce | 5,031 | $71,136 | $368,100 |
| 34982 | Fort Pierce | 31,143 | $54,082 | $252,900 |
| 34983 | Port Saint Lucie | 49,001 | $75,489 | $360,300 |
| 34984 | Port Saint Lucie | 20,151 | $80,725 | $393,500 |
| 34985 PO Box | Port Saint Lucie | — | — | — |
| 34986 | Port Saint Lucie | 30,715 | $80,047 | $372,000 |
| 34987 | Port Saint Lucie | 21,727 | $90,201 | $449,100 |
| 34988 PO Box | Port Saint Lucie | — | — | — |
ZIP codes partly in St. Lucie County
These ZIP codes are mostly in a neighboring county but cover part of St. Lucie County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 34957 | Jensen Beach | Martin County | 23,462 | $70,403 | $417,700 |
| 34972 | Okeechobee | Okeechobee County | 20,066 | $61,040 | $310,600 |
| 34990 | Palm City | Martin County | 30,592 | $129,560 | $611,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in St. Lucie County
Nearby counties
Frequently asked questions
How many ZIP codes are in St. Lucie County, Florida?
19 ZIP codes are mainly in St. Lucie County, and 3 more ZIP codes from neighboring areas reach partly into it.
What cities are in St. Lucie County?
ZIP codes in St. Lucie County use the city names Fort Pierce and Port Saint Lucie.
What metro area is St. Lucie County in?
St. Lucie County is part of the Port St. Lucie, FL metropolitan statistical area.