Illinois Valley High School
| Name | Illinois Valley High School |
| Grades | Class 09 to Class 12 |
| Address | 625 E. River St. |
| City | Cave Junction |
| School District | Three Rivers/Josephine County SD |
| County | Josephine County |
| Zipcode | 97523 |
| Phone No. | (541)592-2116 |
| State | Oregon |
| Rural | Distant |
| Students | 268 |
| Teachers | 18 |
| Student Teacher Ratio | 14.9 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Illinois Valley High School is located at 625 E. River St. in Cave Junction city of Josephine County county in Oregon. This school comes under Three Rivers/Josephine County SD. You can call them at (541)592-2116 for more details. This is not a magnet school. Total two hundred sixty eight students from class 09 to class 12 study in this school who are taught by eighteen teachers. This is not a charter school. The student teacher ratio of this school is 14.9.