The high school district serves a large portion of Trinity County with a number of small towns of circling the town of Weaverville, the county seat. There are eight elementary schools which feet into the district. Trinity High School was first established in 1906. The current site has been in existence since 1970. The school has 25 classrooms, a library, career center, wood shop, auto-shop and agricultural facility.
All classrooms have at least one computer and all have access to the Internet.
Athletic facilities include a gym, a football field, a track, two baseball fields, a softball field, a regulation sized soccer field and tennis courts. Trinity High School maintains its facilities with an ample staff of custodians, maintenance personnel, and grounds crew. These individuals take pride in the neat appearance and cleanliness of the high school. The school site is well lit at night and possesses 24-hour security cameras for additional safety. There are currently 500 students and 39 adults that work on campus.