| Portland School District, CT (District) |
| Portland Sd 1J, OR (District) |
| Portola Valley Elementary, CA (District) |
| 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) |
