German Valley is a village in Stephenson County, Illinois, United States.

German Valley is located four miles south of U.S. Route 20 between Freeport and Rockford.

[2] According to the 2010 census, the village has a total area of 0.48 square miles (1.2 km2), all land.

The racial makeup of the village was 99.58% White, 0.21% Asian and 0.21% Pacific Islander.

19.0% of all households were made up of individuals, and 12.8% had someone living alone who was 65 years of age or older.