| 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) |
| Bladen County, NC (ISD) |
| Bladen County Schools, NC (District) |
| Blaine, MT (District) |
| Blaine County, MT (ISD) |
| Blaine County, NE (ISD) |
| Blaine County, ID (ISD) |
| Blaine County, OK (ISD) |
| Blaine County District, ID (District) |
