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. It is located 125 miles (201 km) southeast of Orlando. In 2019, the United States Census Bureau estimated the city’s population at 201,846. The Port St. Lucie Metropolitan Area includes the counties of St. Lucie and Martin and as of 2016 had an estimated population of 465,208. Port St. Lucie is also contained within the Miami – Fort Lauderdale – Port St. Lucie Combined Statistical Area with an estimated population of 6,832,588.
Port St. Lucie was a largely uninhabited tract of land south of White City in the 1950s, composed of a fishing camp, a few farms and businesses near U.S. 1. In 1958, with a budget of $5, the General Development Corporation (GDC) purchased the River Park development and 40,000 acres (160 km2) along the North Fork of the St. Lucie River. In 1959, the GDC opened its first bridge over the St. Lucie River, allowing for direct automobile access to Port St. Lucie. By February 25, 1961 there were 250 homes in the new city. GDC requested the state legislature to incorporate 70 miles (110 km), along with the River Park settlement, into the City of Port St. Lucie.
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