Plains High School
| Name | Plains High School |
| Grades | Class 09 to Class 12 |
| Address | Box 549 |
| City | Plains |
| School District | Plains K-12 |
| County | Sanders County |
| Zipcode | 59859 |
| Phone No. | (406)826-8600 |
| State | Montana |
| Rural | Remote |
| Students | 150 |
| Teachers | 10 |
| Student Teacher Ratio | 15.2 students per teacher |
| Charter School | N/A |
| Magnet School | N/A |
Plains High School is located at Box 549 in Plains city of Sanders County county in Montana. This school comes under Plains K-12. You can call them at (406)826-8600 for more details. This is not a magnet school. Total one hundred fifty students from class 09 to class 12 study in this school who are taught by ten teachers. This is not a charter school. The student teacher ratio of this school is 15.2.