Kaskaskia is a village located in Randolph County, Illinois. Kaskaskia has a 2026 population of 23. Kaskaskia is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 23 in 2020.
The median household income in Kaskaskia is $150,313 with a poverty rate of 0%. The median age in Kaskaskia is 16 years: 41.4 years for males, and 15.6 years for females. For every 100 females there are 65.2 males.