 It is part of the Port St. Lucie Metropolitan Statistical Area.River Park is located at (27.322588, -80.334101).According to the United States Census Bureau, the CDP has a total area of 2.5 square miles (6.5 km²), of which 2.3 square miles (6.1 km²) is land and 0.2 square mile (0.5 km²) (7.17%) is water.