||This article does not cite any sources. (February 2010)
Rosecrans is an unincorporated community along Rosecrans Road (Illinois Route 173) just west of U.S. Route 41 in northern Lake County, Illinois, 2.0 miles (3.2 km) south of the Wisconsin state line and 7.8 miles (12.6 km) west of Lake Michigan. The community is named for American Civil War General William Starke Rosecrans. The business district is at the intersection of IL 173 and US 41, east of the residential community.