Montgomery County, Illinois
Montgomery County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 28,288. Its county seat is Hillsboro.
Montgomery County Courthouse, Hillsboro
Hillsboro is a city in and the county seat of Montgomery County, Illinois, United States. The population was 5,902 at the 2020 census.
Entering from the northwest on Illinois Route 16