Coffeen is a small city in Montgomery County, Illinois, United States. The population was 647 at the 2020 census. Coffeen was named after on…Coffeen is a small city in Montgomery County, Illinois, United States. The population was 647 at the 2020 census. Coffeen was named after one of its founders, Gustavus Coffeen. Coffeen is in southeastern Montgomery County, along Illinois Route 185. It is 8 miles southeast of Hillsboro, the county seat, and 20 miles northwest of Vandalia.
Save
Share
More