St. Lucie County, Florida
St. Lucie County, Florida, has 402,449 residents (July 2025 estimate). Its county seat is Fort Pierce. It uses Eastern Time and covers 572 sq mi (1,481 km²) of land.
- Resident population, July 2025
- 402,449
- Land area
- 572 sq mi (1,481 km²)
- County seat or government
- Fort Pierce
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $71,457 ± $2,290
- Median home value
- $347,300 ± $4,773
- Median rent, with utilities
- $1,585 ± $57
- Homes lived in by their owners
- 78.6% ± 1.0 points
- County type
- County
- Metro or micro area
- Port St. Lucie, FL metro areaCentral county
- Water area
- 116 sq mi (301 km²)
- State
- Florida
- County code (FIPS)
- 12111
- Coordinates (central point)
- 27.379814, -80.443536
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in St. Lucie County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 3495386,875 people
- 3498349,001 people
- 3495242,655 people
- 3498231,143 people
- 3498630,715 people
- 3499030,592 people
- 3495723,462 people
- 3498721,727 people
- 3498420,151 people
- 3497220,066 people
- 3495017,461 people
- 3495117,148 people
All 18
18 ZIP Code areas overlap St. Lucie County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in St. Lucie County, largest first
- St. Lucie County School District360,500 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Tribal areas in St. Lucie County, largest first
- Fort Pierce Reservation21 people
American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Port St. Lucie, Florida (city)232,491 people
- Fort Pierce, Florida (city)49,082 people
- Lakewood Park, Florida (CDP)13,866 people
- Indian River Estates, Florida (CDP)7,685 people
- Fort Pierce North, Florida (CDP)7,224 people
- White City, Florida (CDP)5,744 people
- River Park, Florida (CDP)5,714 people
- Fort Pierce South, Florida (CDP)5,028 people
- Hutchinson Island South, Florida (CDP)4,175 people
- St. Lucie Village, Florida (town)714 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Martin County, Florida21 mi south
- Indian River County, Florida24 mi north
- Okeechobee County, Florida27 mi west
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.