REGIONAL SCHOOL UNIT #71. Belfast • Belmont • Morrill • Searsmont • Swanville. 2024-2025. Belfast Area High School Assistant Principal. Belfast Area High School, with an enrollment of just over 520 students in grades 9-12, is looking for an Assistant Principal to join a fun and collaborative team of administrators in Midcoast Maine. Candidates should be interested in pursuing progressive programming for students and dedicated to assisting faculty...