| Industrial Technology Academy, MI (PSA) |
| Indy Steam Academy, IN (District) |
| Infinite Pathways, MI (PSA) |
| Infinity Cs, PA (PSA) |
| Infinity:Minnesota Digital Academy, MN (District) |
| Information Technology Academy of St. Clair, MI (PSA) |
| Ingalls, KS (District) |
| Ingham ISD, MI (ISD) |
| Ingleside ISD, TX (District) |
| Inglewood Unified, CA (District) |
| Ingram ISD, TX (District) |
| Inkster City School District, MI (District) |
| Inkster Preparatory Academy, MI (PSA) |
| Inland Lakes Schools, MI (District) |
| Inland Seas Sch of Expedition, WI (PSA) |
