| Name | City | Grade range |
|---|---|---|
| Alps View High (Continuation) | Weaverville | continuation |
| Burnt Ranch Elementary | Burnt Ranch | elementary |
| Coffee Creek Elementary | Trinity Center | elementary |
| Cox Bar Elementary | Big Bar | elementary |
| Douglas City Elementary | Douglas City | elementary |
| Hayfork High | Hayfork | high |
| Hayfork Valley Elementary | Hayfork | elementary |
| Hoaglin-Zenia Elementary | Zenia | elementary |
| Hyampom Arts Magnet Elementary | Hyampom | elementary |
| Junction City Elementary | Junction City | elementary |
| Lewiston Elementary | Lewiston | elementary |
| Mountain Valley Adult | Hayfork | adult education |
| Mountain Valley Community Day | Hayfork | community day |
| Mt. Lassic High (Continuation) | Bridgeville | continuation |
| Southern Trinity Adult Education | Bridgeville | adult education |
| Southern Trinity Community Day | Bridgeville | community day |
| Southern Trinity High | Bridgeville | high |
| Trinity Adult | Weaverville | adult education |
| Trinity Center Elementary | Trinity Center | elementary |
| Trinity County Home | Weaverville | county community |
| Trinity County Juvenile Hall | Weaverville | juvenile hall |
| Trinity County Special Education | Weaverville | special education |
| Trinity High | Weaverville | high |
| Trinity River Community Day | Weaverville | community day |
| Trinity River Elementary Community Day | Weaverville | community day |
| Valley High | Hayfork | continuation |
| Van Duzen Elementary | Bridgeville | elementary |
| Weaverville Elementary | Weaverville | elementary |