| Black River Public School, MI (PSA) |
| Blackduck Public School District, MN (District) |
| Blackfoot Charter Community Learning Center, ID (PSA) |
| Blackfoot District, ID (District) |
| Blackford County, IN (ISD) |
| Blackford County Schools, IN (District) |
| Blackhawk SD, PA (District) |
| Blacklick Valley SD, PA (District) |
| Blackstone Academy, RI (PSA) |
| Blackstone Valley Prep, A Ri Mayoral Academy, RI (PSA) |
| Blackstone Valley Regional Vocational Technical, MA (District) |
| Blackstone-Millville, MA (District) |
| Blackwater R-Ii, MO (District) |
| Blackwell, OK (District) |
| Blackwell Cisd, TX (District) |
