| Portsmouth, RI (District) |
| Portsmouth, VA (District) |
| Portsmouth City School District, OH (District) |
| Portsmouth Sau Office, NH (District) |
| Portsmouth School District, NH (District) |
| Portville Central School District, NY (District) |
| Porum, OK (District) |
| Posen Consolidated School District No. 9, MI (District) |
| Posen-Robbins ESD 143-5, IL (District) |
| Posey County, IN (ISD) |
| Positive Outcomes Charter School, DE (PSA) |
| Positive Solutions Charter School, TX (PSA) |
| Post Falls District, ID (District) |
| Post ISD, TX (District) |
| Postville Comm School District, IA (District) |
