Lake Park is a town in Palm Beach County, Florida, United States. The population was 8,155 at the 2010 census. As of 2018, the population recorded by the U.S. Census Bureau was 8,605.
Lake Park is located at 26°48′1″N 80°3′51″W (26.800389, -80.064237).
According to the United States Census Bureau, the town has a total area of 2.3 square miles (6.0 km2), of which 2.2 square miles (5.7 km2) is land and 0.2 square miles (0.52 km2) (7.66%) is water.
Kelsey City, now known as Lake Park, was the first zoned municipality in the State of Florida. It was designed and planned by Dr. John Nolan of Boston, Massachusetts, and the Olmsted Brothers, the landscaping firm of Frederick Law Olmsted's sons, Frederick Jr and John Charles. Since then, the boundaries of Lake Park have expanded to 2.35 square miles (6.1 km2) of residential, business, industrial and mixed-use land. The Lake Park Town Hall, constructed in 1927 and listed on the National Register of Historic Places, survived the 1928 Okeechobee hurricane and served as a shelter for town residents during the storm.
As of the census of 2000, there were 8,721 people, 3,346 households, and 2,024 families residing in the town. The population density was 4,018.8 inhabitants per square mile (1,551.7/km2).