Forest is a city and the county seat of Scott County, Mississippi, United States. The population was 5,684 at the 2010 census and the popula…Forest is a city and the county seat of Scott County, Mississippi, United States. The population was 5,684 at the 2010 census and the population is a minority-majority. According to the United States Census Bureau, the city has a total area of 13.0 square miles, of which 13.0 square miles is land and 0.04 square miles is water.