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Where am ILOCATED

Port St. Lucie, FL Metro Area

The Port St. Lucie, FL metro area is made up of 2 counties in Florida: St. Lucie and Martin. About 568,721 people lived there on July 1, 2025 (Census estimate), 16.6% more than in April 2020.

Martin County, centralSt. Lucie County, centralPort St. Lucie
2 counties in Florida
Population, July 2025
568,721 16.6% more than in April 2020
Type
Metropolitan statistical area
Counties
2, both central
Land area
1,116 sq mi (2,890 km²)
Time zone
Eastern TimeUTC-05:00 in January; UTC-04:00 in July
State
Florida
Combined statistical area
Miami-Port St. Lucie-Fort Lauderdale, FL
CBSA code
38940
Open this area in the metro area finder

Counties in the Port St. Lucie, FL metro area, largest first

CountyRolePopulation, July 2025Share of the area
St. Lucie CountyCentral402,44970.8%
Martin CountyCentral166,27229.2%

A central county holds the area’s core, an urban area of at least 50,000 people. This area has no outlying counties: no neighboring county sends enough commuters to join it. A county belongs to one metro or micro area at most, and it counts whole, countryside included.

Principal city

  1. Port St. Lucie232,491 people

OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.

Part of the Miami-Port St. Lucie-Fort Lauderdale, FL combined statistical area

OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other 4 areas in this one, largest first:

  1. Miami-Fort Lauderdale-West Palm Beach, FL Metro Area6,391,072 people
  2. Sebastian-Vero Beach-West Vero Corridor, FL Metro Area172,799 people
  3. Key West-Key Largo, FL Micro Area80,406 people
  4. Okeechobee, FL Micro Area42,608 people

Bordering metro and micro areas, nearest first

Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.

  1. Okeechobee, FL Micro Area27 mi west
  2. Sebastian-Vero Beach-West Vero Corridor, FL Metro Area35 mi north
  3. Clewiston, FL Micro Area50 mi southwest
  4. Miami-Fort Lauderdale-West Palm Beach, FL Metro Area105 mi south

Before using this answer on a form

A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.

Find the metro area where you are now, find your county, or see every metro and micro area by population.

See this area on Census.gov ↗