Between the ocean and the lagoon
The Town of Palm Beach is a barrier island about 12.3 miles long, nowhere wider than three-quarters of a mile and in places only 500 feet wide, between the Lake Worth Lagoon and the Atlantic Ocean. About 9,000 people live there year-round and about 20,000 more keep a seasonal home on the island. Henry Flagler's Royal Poinciana Hotel opened in Palm Beach in 1894 and his railroad arrived in 1896. The Town of Palm Beach was incorporated on April 17, 1911, after residents learned that West Palm Beach planned to annex the island.