Jacksonville Beach is a city located in Duval County, Florida. When the majority of communities in Duval County consolidated with Jacksonville, Florida in 1968, Jacksonville Beach, along with Neptune Beach, Atlantic Beach, and Baldwin, Florida, remained quasi-independent. Like the other towns, it maintains its own municipal government but its residents vote in the Jacksonville mayoral election and have representation on the Jacksonville city council. As of the 2000 census, the city had a total population of 20,990. As of 2004, the population recorded by the U.S. Census Bureau is 21,353. 

The Spanish first settled the Jacksonville Beach area, with missions from Mayport to St Augustine. The Spanish ceded East Florida to the English by treaty in 1763. The Spanish did to regain control twenty years laterand then in 1821 the Spanish ceded Florida to the United States of  America. The area was incorporated as a town in 1907 and called Pablo Beach.
The name was changed in 1925 to 'Jacksonville Beach'.