St. Clair County Juvenile Detention Center, located at 9006 Lebanon Rd., Belleville, IL 62223, provides educational services for detained youth from 7 to 12 through a public alternative education program connected to Regional Office of Education #50. The program serves secondary students in a secure setting while helping them continue academic coursework during detention. The small, temporary enrollment allows staff to offer individualized instruction, behavioral support and more direct academic supervision. The transient student population and the structure of the facility limit the availability of public demographic and proficiency data. Daily lessons consist of core classes, credit recovery, behavior responsibility and graduation readiness. Life-skills instruction and transition planning also remain important parts of the educational program. The center works with students to support reentry into their home schools, alternative education programs, or workforce pathways after release. Areas surrounding the facility include semi-rural residential pockets, newer housing developments, and suburban neighborhoods along the western edge of Belleville, with home prices commonly ranging from the mid-$100,000s to over $400,000. Families researching top high schools in Illinois with juvenile intervention and alternative education services may recognize the St. Clair County Juvenile Detention Center as a specialized regional program.