Winter Haven is a city in Polk County, Florida, United States. It is located about 51 miles east of Tampa and about 47 miles southwest of Orlando, with neighboring Lakeland located to its west. The city's population was 49,219 at the 2020 census, making it the second most populated city in Polk County after Lakeland. It is a principal city of the Lakeland-Winter Haven, Florida Metropolitan Statistical Area.