Winter Haven is a city in Polk County, Florida, United States. The population was 26,487 at the 2000 census. According to the U.S. Census Bureau's 2004 estimates, the city had a population of 27,855, making it the second most populated city in Polk County. Winter Haven is best known as the home of Cypress Gardens, a theme park which has recently gone through renovations to add thrill rides. Country musician Gram Parsons was from a wealthy family in Winter Haven. Winter Haven was also home to the first Publix supermarket circa 1930. Winter Haven apartments for rent comparison page shows most up to date rent information on Winter Haven apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.