Grant Union Junior/Senior High School
| Name | Grant Union Junior/Senior High School |
| Grades | Class 07 to Class 12 |
| Address | 911 S Canyon Blvd |
| City | John Day |
| School District | John Day SD 3 |
| County | Grant County |
| Zipcode | 97845-1281 |
| Phone No. | (541)575-1799 |
| State | Oregon |
| Rural | Remote |
| Students | 244 |
| Teachers | 18 |
| Student Teacher Ratio | 13.4 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Grant Union Junior/Senior High School is located at 911 S Canyon Blvd in John Day city of Grant County county in Oregon. This school comes under John Day SD 3. You can call them at (541)575-1799 for more details. This is not a magnet school. Total two hundred forty four students from class 07 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 13.4.