DeFuniak Springs is a city in and the county seat of Walton County, Florida, United States. The population was 5,919 as of the 2020 Census, up from 5,177 at the 2010 census. It is part of the Crestview—Fort Walton Beach—Destin, Florida Metropolitan Statistical Area. DeFuniak Springs also serves as a hub for residents in surrounding unincorporated communities. DeFuniak Springs is home to Lake DeFuniak, one of two spring-fed lakes in the world that is nearly perfectly round.