Santa Rosa Beach is an unincorporated community in Walton County, Florida, United States. It is part of the Crestview-Fort Walton Beach-Destin, Florida Metropolitan Statistical Area. Santa Rosa Beach is located at 30.3960324°, -86.2288322°. It is located north of U.S. Route 98 on the shores of Hogtown Bayou of the Choctawhatchee Bay. U.S. Route 9…Santa Rosa Beach is an unincorporated community in Walton County, Florida, United States. It is part of the Crestview-Fort Walton Beach-Destin, Florida Metropolitan Statistical Area. Santa Rosa Beach is located at 30.3960324°, -86.2288322°. It is located north of U.S. Route 98 on the shores of Hogtown Bayou of the Choctawhatchee Bay. U.S. Route 98 leads east 18 mi to Rosemary Beach and west 10 mi to Miramar Beach.