<P> Port St. Lucie is a city in St. Lucie County , Florida , United States . It is the most populous municipality in the county with a population of 164,603 at the 2010 census due to its rapid growth during the 2000s . In 2013 , the state of Florida estimated the city 's population at 171,016. Port St. Lucie forms part of a metropolitan area called the Port St. Lucie , Florida Metropolitan Statistical Area that in 2013 was estimated to have 438,095 residents . As of 2015 , the city had 179,413 residents , surpassing Fort Lauderdale in population . </P>
<P> Port St. Lucie is a city in St. Lucie County , Florida , United States . It is the most populous municipality in the county with a population of 164,603 at the 2010 census due to its rapid growth during the 2000s . In 2013 , the state of Florida estimated the city 's population at 171,016. Port St. Lucie forms part of a metropolitan area called the Port St. Lucie , Florida Metropolitan Statistical Area that in 2013 was estimated to have 438,095 residents . As of 2015 , the city had 179,413 residents , surpassing Fort Lauderdale in population . </P>
what county is pt st lucie florida in
what county is pt st lucie florida in
St. Lucie County
St. Lucie County