Port St. Lucie ranked sixth nationally and third in Florida for best small rental markets in 2025, with the fastest growth among small metros. Its competitive score rose to 86.9 due to fewer new apartments (2.63%) and higher lease renewals (75.1%). Apartments rented within 37 days on average, with 95.6% occupancy and 12 prospective renters per unit. Top U.S. rental markets include Miami and Chicago; in Florida, Miami-Dade and Palm Beach lead.