St. Lucie County | |
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Coordinates: 27°23′N 80°26′W / 27.38°N 80.44°W | |
Country | United States |
State | Florida |
Founded | May 24, 1905 |
Named for | St. Lucie Inlet |
Seat | Fort Pierce |
Largest city | Port St. Lucie |
Area | |
• Total | 688 sq mi (1,780 km2) |
• Land | 572 sq mi (1,480 km2) |
• Water | 116 sq mi (300 km2) 16.9% |
Population (2020) | |
• Total | 329,226 |
• Density | 576/sq mi (222/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 21st |
Website | www |
St. Lucie County (Spanish: Condado de Santa Lucía) is a county located in the southeastern portion of the U.S. state of Florida. As of the 2020 census, the population was 329,226.[1] The county's seat is Fort Pierce, while the largest city is Port St. Lucie, making up 62% of the county's population.[2] St. Lucie County is the principal county of the Port St. Lucie, FL Metropolitan Statistical Area.