Ingham Intermediate School District (ISD) is a regional educational service agency and has been in operation since 1962. Our service area extends into seven counties and includes 12 local school districts. Ingham ISD's main campus is in Mason, however many of our over 350 staff members work directly in local schools and in community settings. MISSION Ingham ISD exists to lead and serve for the achievement and success of all learners. VISION Ingham ISD, in partnership with all stakeholders, will foster the success of all learners.