Lost Nation, Illinois is an unincorporated census-designated place in Ogle County, Illinois, United States, located south of the city of Oregon. As of the 2010 census, its population was 708.[1] Lost Nation has an area of 2.552 square miles (6.61 km2); 2.441 square miles (6.32 km2) of this is land, and 0.111 square miles (0.29 km2) is water.
Lost Nation has a golf course called "Lost Nation Golf Course".[2]