
Coffeen
- County:
- Montgomery County
- County Seat:
- No
- Area (mi²):
- 1.162
- State:
- Illinois
Coffeen is a city located in Montgomery County, Illinois. Coffeen has a 2025 population of 622. Coffeen is currently declining at a rate of -0.64% annually and its population has decreased by -3.12% since the most recent census, which recorded a population of 642 in 2020.
The average household income in Coffeen is $68,781 with a poverty rate of 20.99%. The median age in Coffeen is 40.6 years: 33.5 years for males, and 43.4 years for females.