According to the **2010 U.S. Census** (most recent detailed ancestry data for the region), the largest ancestry group in the **Midwest** (IL, IN, IA, KS, MI, MN, MO, NE, ND, OH, SD, WI) is:
German: 22.2%
Followed by:
German immigration (1840s–1880s) settled heavily across the rural and industrial Midwest, creating a lasting demographic imprint.