Cahokia is a medium-sized village located in the state of Illinois. With a population of 11,912 people and three associated neighborhoods, Cahokia is the 198th largest community in Illinois.

For a small village, Cahokia has a lot of people who use public transit to get to work, and those that do mostly ride the bus. This suggests that a real need for low-cost transportation in Cahokia exists, and local transit is helping to meet that need.

The percentage of people in Cahokia with college degrees is quite a bit lower than the national average for cities and towns of 21.84%: just 11.53% of people over 25 have a bachelor's degree or advanced degree.

The per capita income in Cahokia in 2022 was $20,501, which is low income relative to Illinois and the nation. This equates to an annual income of $82,004 for a family of four. However, Cahokia contains both very wealthy and poor people as well.

Cahokia is an extremely ethnically-diverse village. The people who call Cahokia home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Cahokia residents report their race to be Black or African-American, followed by White. Important ancestries of people in Cahokia include German, Irish, English, Polish, and French.

The most common language spoken in Cahokia is English. Other important languages spoken here include Spanish and Polish.