Kaskaskia is located at . According to the 2010 census , Kaskaskia has a total area of , all land . However , the village comprises only a small part of Kaskaskia Precinct , which includes all of Randolph County 's land west of the Mississippi . The precinct forms an exclave of Illinois within Missouri . Kaskaskia Precinct has a land area of and a 2000 census population of 36 people . In 1993 the Mississippi River almost completely flooded the island
Mississippi River almost completely flooded
Great Flood of 1993
Kaskaskia, Illinois