Montgomery County, county in Illinois, United States. As of 2020 county had an estimated population of 28,045 inhabitants. The county was created 203 years ago in 1821. Its county seat is Hillsboro.
There are 1 city/town in Montgomery County, IL. The largest city of Montgomery County is Litchfield with a population of 6,609.
List of cities, towns, neighborhoods & other populated places in Montgomery County.
City Name | Title | Population |
---|---|---|
Litchfield | City in Illinois, United States | 6,609 |