Johnston Senior High School
| Name | Johnston Senior High School |
| Grades | Class 10 to Class 12 |
| Address | PO Box 10 |
| City | Johnston |
| School District | Johnston Comm School District |
| County | Polk County |
| Zipcode | 50131 |
| Phone No. | (515)278-0449 |
| State | Iowa |
| Suburb | Large |
| Students | 1772 |
| Teachers | 87 |
| Student Teacher Ratio | 20.3 students per teacher |
| Charter School | No |
| Magnet School | N/A |
Johnston Senior High School is located at PO Box 10 in Johnston city of Polk County county in Iowa. This school comes under Johnston Comm School District. You can call them at (515)278-0449 for more details. This is not a magnet school. Total one thousand seven hundred seventy two students from class 10 to class 12 study in this school who are taught by eighty seven teachers. This is not a charter school. The student teacher ratio of this school is 20.3.