National Register listings in Carroll County, Illinois

6 listings 1 districts 6 with nomination summaries Updated October 2026
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Most notable listings

Historic districts (1)

All listings

Places: Mount Carroll (4) · Lanark (1) · Milledgeville (1)

NamePlaceTypeListed
Carroll County Courthouse Mount Carroll Building 1973
Franks, Charles, House Lanark Building 1998
Halderman, Nathaniel, House Mount Carroll Building 1980
Mark, Caroline, House Mount Carroll Building 1983
Mount Carroll Historic District Mount Carroll District 1980
Steffens, Joseph, House Milledgeville Building 1985

State Historic Preservation Office

Nominations, tax-credit certifications and official records for Illinois go through the Illinois State Historic Preservation Office. See how to nominate a property.