Fort Walton Beach is a city in southern Okaloosa County, Florida, United States. As of 2004, the population estimate for Fort Walton Beach, Florida is 19,992 recorded by the U.S. Census Bureau. It is a principal city of the Fort Walton Beach–Crestview–Destin Metropolitan Statistical Area. Fort Walton Beach is a year round fishing and beach resort community. Its busiest time of the year is during the summer, with spring break being another busy time when thousands of people flock to the Emerald Coast.