Onaga Senior High School
| Name | Onaga Senior High School |
| Grades | Class 09 to Class 12 |
| Address | P O Box 458 |
| City | Onaga |
| School District | Onaga-Havensville-Wheaton |
| County | Pottawatomie County |
| Zipcode | 66521 |
| Phone No. | (785)889-4251 |
| State | Kansas |
| Rural | Remote |
| Students | 77 |
| Teachers | 13 |
| Student Teacher Ratio | 6.1 students per teacher |
| Charter School | No |
| Magnet School | No |
Onaga Senior High School is located at P O Box 458 in Onaga city of Pottawatomie County county in Kansas. This school comes under Onaga-Havensville-Wheaton. You can call them at (785)889-4251 for more details. This is not a magnet school. Total seventy seven students from class 09 to class 12 study in this school who are taught by thirteen teachers. This is not a charter school. The student teacher ratio of this school is 6.1.