| Konocti Unified, CA (District) |
| Koochiching County, MN (ISD) |
| Kootenai Bridge Academy, ID (PSA) |
| Kootenai Classical Academy Inc, ID (PSA) |
| Kootenai County, ID (ISD) |
| Kootenai District, ID (District) |
| Kopperl ISD, TX (District) |
| Kosciusko County, IN (ISD) |
| Kosciusko School District, MS (District) |
| Kossuth County, IA (ISD) |
| Kountze ISD, TX (District) |
| Krebs, OK (District) |
| Kremlin-Hillsdale, OK (District) |
| Kress ISD, TX (District) |
| Krum ISD, TX (District) |
