Jersey Community Unit School District 100 is a public K-12 school district based in Jerseyville, Illinois. The school district consists of five attendance centers in two municipalities, serving students in most of Jersey County, Illinois, and a small portion of southern Greene County, Illinois.
Total enrollment for the district is approximately 3,000 students each school year. The district area is , making the school district the second largest in Illinois by area. The current superintendent is Brad Tuttle.
The district is governed by a seven-member school board.
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