Solon Mills is an unincorporated community and census-designated place in McHenry County, Illinois, United States.

Solon Mills is located on U.S. Route 12, 2 miles (3.2 km) southwest of Spring Grove.

[3][4] It was named a CDP before the 2020 census, at which time it had a population of 133.

[5] Solon Mills first appeared as a census designated place in the 2020 U.S.

This McHenry County, Illinois location article is a stub.