Tri-Rivers

Located at 2222 Marion Mount Gilead Rd in Marion, Ohio, Tri-Rivers is an open public educational service agency set within a rural fringe community of the Marion metropolitan area. Operating as a non-charter district with a single dedicated school facility, Tri-Rivers specializes exclusively in upper-level secondary education, serving students across grades 10 through 12. According to the 2024–2025 NCES dataset, the district serves a total enrollment of 583 students. The vast majority of its student body is concentrated in the upper high school levels, comprising 301 eleventh graders and 257 twelfth graders, along with a smaller cohort of 25 tenth graders.

To support its upper-grade curriculum and student body, Tri-Rivers maintains a substantial professional workforce. The district employs 75.5 full-time equivalent (FTE) teachers, 3.0 FTE instructional aides, and 110.3 FTE support staff, resulting in a total staffing footprint of 188.8 FTE personnel. The enrolled student population consists of 346 male students and 237 female students. Demographically, the student body is composed of 518 White, 30 Hispanic, 24 multiracial, 9 Black, and 2 Asian students. Through its high staff-to-student presence and specialized high school structure, Tri-Rivers offers a dedicated regional environment for students completing their upper-level secondary education.