
Countryside
- County:
- Cook County
- County Seat:
- No
- Area (mi²):
- 2.878
- State:
- Illinois
Countryside is a city located in Cook County, Illinois. Countryside has a 2025 population of 5,975. Countryside is currently declining at a rate of -1.42% annually and its population has decreased by -6.7% since the most recent census, which recorded a population of 6,404 in 2020.
The average household income in Countryside is $121,017 with a poverty rate of 8.79%. The median age in Countryside is 48.5 years: 41 years for males, and 51.7 years for females.