Belvidere Community Unit School District 100 (BCUSD 100) is a unified school district located in Belvidere, the county seat of Boone County, Illinois.
The current superintendent is Dr. Cassandra Schug.
[2] The district's office is at 1201, 5th Avenue in Belvidere, Illinois (61008).
In 2018, 2019, and 2020 the district was recognized as a certified Great Place to Work.
[3] The district provides grades PreK-12, in the facilities listed below.