| Name | City | Grade range |
|---|---|---|
| Big Springs Elementary | Montague | elementary |
| Bogus Elementary | Montague | elementary |
| Butte Valley Adult | Dorris | adult education |
| Butte Valley Elementary | Dorris | elementary |
| Butte Valley High | Dorris | high |
| Butte Valley Middle | Macdoel | middle |
| Butteville Elementary | Edgewood | elementary |
| Cascade High | Dorris | continuation |
| Delphic Elementary | Montague | elementary |
| Discovery High | Yreka | continuation |
| Dunsmuir Adult | Dunsmuir | adult education |
| Dunsmuir Elementary | Dunsmuir | elementary |
| Dunsmuir High | Dunsmuir | high |
| Dunsmuir Joint Union High Community Day | Dunsmuir | community day |
| Etna Community Day | Etna | community day |
| Etna Elementary | Etna | elementary |
| Etna Union High | Etna | high |
| Evergreen Elementary | Yreka | elementary |
| Forks Of Salmon Elementary | Forks of Salmon | elementary |
| Fort Jones Community Day | Fort Jones | community day |
| Fort Jones Elementary | Fort Jones | elementary |
| Gazelle Elementary | Gazelle | elementary |
| Gold Street Elementary | Yreka | elementary |
| Grenada Community Day | Grenada | community day |
| Grenada Elementary | Grenada | elementary |
| Happy Camp Community Day | Happy Camp | community day |
| Happy Camp Elementary | Happy Camp | elementary |
| Happy Camp Elementary Community Day | Happy Camp | community day |
| Happy Camp High | Happy Camp | high |
| Happy Camp Union Elementary School Primary Community Day | Happy Camp | community day |
| Headwaters Community Day | Mount Shasta | community day |
| Hornbrook Elementary | Hornbrook | elementary |
| J. Everett Barr Court | Yreka | juvenile hall |
| Jackson Street Elementary | Yreka | middle |
| Jefferson High (Continuation) | Mount Shasta | continuation |
| Junction Elementary | Somes Bar | elementary |
| Klamath River Elementary | Horse Creek | elementary |
| Little Shasta Elementary | Montague | elementary |
| Mahogany Community Day High | Dorris | community day |
| Mccloud Elementary | Mccloud | elementary |
| Mccloud High | McCloud | high |
| Montague Community Day | Montague | community day |
| Montague Elementary | Montague | elementary |
| Mt. Shasta Elementary | Mount Shasta | elementary |
| Mt. Shasta High | Mount Shasta | high |
| Picard Community Day Elementary | Macdoel | community day |
| Scott River Adult | Etna | adult education |
| Scott River Community Day | Etna | community day |
| Scott River High | Etna | continuation |
| Scott Valley Community Day | Fort Jones | community day |
| Scott Valley Junior High | Fort Jones | middle |
| Seiad Elementary | Seiad Valley | elementary |
| Siskiyou Adult | Mount Shasta | adult education |
| Siskiyou County Rop | Yreka | occupational |
| Siskiyou County Special Education | Yreka | special education |
| Sisson | Mount Shasta | middle |
| South County Community Day | Mount Shasta | community day |
| Summit Academy Community Day | Dunsmuir | community day |
| Weed Elementary | Weed | elementary |
| Weed High | Weed | high |
| Willow Creek Elementary | Montague | elementary |
| Wyeka Vista Community Day | Weed | community day |
| Yreka Community Day | Yreka | community day |
| Yreka High | Yreka | high |
| Yreka Union High Adult | Yreka | adult education |
| Yreka Union High Community Day | Yreka | community day |