Chester County Intermediate Unit | 6,507 followers on LinkedIn. Achieving Success Together | Created in 1971 by the Pennsylvania General Assembly, the Chester County Intermediate Unit is a regional educational service agency that exists to provide quality, cost-effective services to the community and its residents. The Chester County Intermediate Unit administers instructional, enrichment and administrative programs and services to Chester County’s 12 public school districts, and to over 45 private and parochial schools in the county. These programs include instructional, remedial and enrichment services for regular and special education students and career and technical education programs for secondary and post-secondary students.