Signal Hill is an unincorporated community in Centreville Township, Stookey Township, and the city of Belleville, St. Clair County, Illinois, United States.

[2] Signal Hill is located on Illinois Route 157, approximately 11 miles (18 km) southeast of St. Louis, Missouri.

[4] Students in the community will attend Signal Hill School, comprising grades Pre-K to 8th grade, and Belleville West High School.

Signal Hill is representative by two active neighborhood associations that liaison with local government officials, and help create public-private partnerships that enrich the community.

This St. Clair County, Illinois location article is a stub.