Wausau is a town in Washington County, Florida, United States. Wausau is the "Possum Capital of the World" and celebrates annually with the Wausau Possum Festival, which was originally called Fun Day. One activity at the Possum Festival is bidding to shake a possum by the tail. The population was 398 at the 2000 census. According to the U.S. Census Bureau's 2004 estimates, the town had a population of 406. The official website for the Town of Wausau is maintained with information about the town, history, heritage and events including the Wausau Possum Festival.