Darfur is a city in Watonwan County, Minnesota, United States. The population was 108 at the 2010 census. According to the United Stat…Darfur is a city in Watonwan County, Minnesota, United States. The population was 108 at the 2010 census. According to the United States Census Bureau, the city has a total area of 0.35 square miles, all land.