West Palm Beach is a city in and the county seat of Palm Beach County, Florida, United States. It is located immediately to the west of the adjacent Palm Beach, which is situated on a barrier island across the Lake Worth Lagoon.

Palm Beach County is a county in the southeastern part of Florida, located in the Miami metropolitan area. It is Florida's third-most populous county after Miami-Dade County and Broward County and the 26th-most populous in the United States, with 1,492,191 residents as of the 2020 census. Its county seat and largest city is West Palm Beach, which had a population of 117,415 as of 2020. Named after one of its oldest settlements, Palm Beach, the county was established in 1909, after being split from Miami-Dade County. The county's modern-day boundaries were established in 1963.