Carroll County
- Mount Carroll, Main & Market Streets (Structures), Courthouse Square, Main, Market, Center, Clay & Broadway (HABS IL-1148)
- Mount Carroll, Miles Museum, 107 West Broadway (covenant, EXPIRED)
- Savanna, Savanna-Sabula/U.S. Highway 52 Bridge (HIER CA-2014-1)
- Savanna vicinity, Savanna Army Depot (HAER IL-19)
- Savanna vicinity, Savanna Army Depot, Archaeological sites 11-Ca-1 and 11-Ca-2 (covenant)