Philip is a city in and the county seat of rural Haakon County, South Dakota, United States. The population was 759 at the 2020 census. …Philip is a city in and the county seat of rural Haakon County, South Dakota, United States. The population was 759 at the 2020 census. Philip was laid out in 1907 when the Chicago and North Western Railway was extended to that point. It was incorporated in 1908. In 1914, Philip was designated seat of the newly formed Haakon County. The city was named for James "Scotty" Philip; the local high school mascot is the Scotch terrier, or "Scottie", in his honor.