
East St. Louis
- County:
- St. Clair County
- County Seat:
- No
- Area (mi²):
- 13.925
- State:
- Illinois
East St. Louis is a city located in St. Clair County, Illinois. East St. Louis has a 2025 population of 17,136. East St. Louis is currently declining at a rate of -1.45% annually and its population has decreased by -6.87% since the most recent census, which recorded a population of 18,400 in 2020.
The average household income in East St. Louis is $47,074 with a poverty rate of 32.85%. The median age in East St. Louis is 45.1 years: 34.8 years for males, and 47.8 years for females.