Good Afternoon, RSU 57 Community,
Click the link below to view the latest edition of the RSU 57 Community Newsletter. Have a wonderful day!
https://app.smore.com/n/kufeq
Good Afternoon, RSU 57 Community,
We are pleased to share an update regarding the future leadership of our high school. Please click on the link below to view the press release introducing the next Massabesic High School Principal.

Good Morning, Mustang Nation! This is a friendly reminder that tomorrow, May 27, 2026, is an Early Release Day for all RSU 57 students. Thank you.






Good Morning, Mustang Nation! This is a friendly reminder that tomorrow, May 13, 2026, is an Early Release Day for all RSU 57 students. Thank you.
Good afternoon, Mustang Nation!
Click the link below to view a message from the Superintendent of Schools, Dr. Stephen Marquis, celebrating our teachers and our staff. Have a wonderful day!
Mustang Nation PROM LETTER 2026! Please use the link below to access the PROM LETTER with important information, expectations, and opportunities:
Good morning, Mustang Nation!
It is with great excitement and pride that we announce the recipients of the Model Mustang Staff Award for the month of April! This award is a tribute to those outstanding individuals who embody the qualities of a true “Model Mustang”; they inspire, lead, foster positivity, persevere, and excel in all that they do. Each Model Mustang was nominated by colleagues who took the time to acknowledge and celebrate their coworkers’ exceptional contributions to our district. Their hard work and commitment have not gone unnoticed, and we are grateful for the positive impact they have within RSU 57! This month's raffle winner is Tim French, Groundsperson for the RSU 57 School District!
"Tim has come on board and immediately added a positive attitude to the grounds department. He jumps into any task and is always looking to stay busy. Thank you Tim!"
Click the link to view the full list of Model Mustang Award recipients. Congratulations to all of this month's Model Mustangs!

