
Warren
- County:
- Jo Daviess County
- County Seat:
- No
- Area (mi²):
- 1.033
- State:
- Illinois
Warren is a village located in Jo Daviess County, Illinois. Warren has a 2025 population of 1,276. Warren is currently declining at a rate of -0.85% annually and its population has decreased by -4.06% since the most recent census, which recorded a population of 1,330 in 2020.
The average household income in Warren is $73,899 with a poverty rate of 6.34%. The median age in Warren is 42.4 years: 42.7 years for males, and 41 years for females.