School Union 93 is the administrative organization for the public schools in the towns of Blue Hill, Brooksville, Castine, Penobscot, and Surry.

In the school union structure, each town has its own elected school board, budget, school and staff, while sharing a superintendent and central office staff. 

Each school board has monthly public meetings with the Superintendent.  The meetings are held at the individual schools and the agendas for upcoming meetings can be found on this website. After the meetings, the minutes will be available on this website.  The five boards meet together several times a year as a joint board to decide on union-wide matters.

All the public schools in the five towns are PreK-8 only. There is no public high school in Union 93, so each town "tuitions" students to state-approved high schools in the area or statewide.