Lake Worth Beach, previously named Lake Worth, is a city in east-central Palm Beach County, Florida. The city’s name is derived from the body of water along its eastern border known as the Lake Worth Lagoon. The Lake Worth Beach Pier is a favorite spot for photos and fishing.

Lake Worth Beach is situated south of West Palm Beach, southeast of Lake Clarke Shores, east of Palm Springs, and north of Lantana, and west of Palm Beach and the Intracoastal Waterway. The 2022 census recorded a population of 42,219. 

Several historic neighborhoods are located in Lake Worth Beach. The National Register of Historic Places listed College Park and Old Lucerne, while the downtown area also has dozens of buildings that are part of the Historic Old Town Commercial District. Several cultural events are hosted annually in the city, including a street painting festival.