Palm Beach County is located in the state of Florida. As of 2007, the county had a population of 1,351,236 . Palm Beach County was created in 1909. It was named for its first settled community, Palm Beach, named for the many palm trees and beaches in the area. According to the U.S. Census Bureau, the county has a total area of 2,386 square miles of land making it the largest county in the state of Florida. - Florida Yellow Pages