Waterloo is a city in and county seat of Monroe County, Illinois, United States. The population was 11,013 at the 2020 census, up from 9,811 in 2010.
Monroe County Courthouse in the Waterloo Historic District
Red Bud is a city in Randolph County, Illinois, in the United States. The population was 3,804 at the 2020 census.
Buildings on the northern side of the 100 block of E. Market Street in downtown Red Bud, Illinois, United States. Built in 1855 (leftmost building) and unknown dates (others), these buildings are part of the Red Bud Historic District, a historic district that is listed on the National Register of Historic Places.