
Maryville
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 5.773
- State:
- Illinois
Maryville is a village located in Madison County, Illinois. Maryville has a 2025 population of 8,355. Maryville is currently growing at a rate of 0.24% annually and its population has increased by 1.19% since the most recent census, which recorded a population of 8,257 in 2020.
The average household income in Maryville is $120,714 with a poverty rate of 3.2%. The median age in Maryville is 49.8 years: 47.6 years for males, and 50.7 years for females.