Tri-County High School
| Name | Tri-County High School |
| Grades | Class 09 to Class 12 |
| Address | 409 S West St |
| City | Plainfield |
| School District | Tri-County Area School District |
| County | Waushara County |
| Zipcode | 54966-9608 |
| Phone No. | (715)335-6366 |
| State | Wisconsin |
| Rural | Remote |
| Students | 160 |
| Teachers | 16 |
| Student Teacher Ratio | 9.8 students per teacher |
| Charter School | No |
| Magnet School | No |
Tri-County High School is located at 409 S West St in Plainfield city of Waushara County county in Wisconsin. This school comes under Tri-County Area School District. You can call them at (715)335-6366 for more details. This is not a magnet school. Total one hundred sixty students from class 09 to class 12 study in this school who are taught by sixteen teachers. This is not a charter school. The student teacher ratio of this school is 9.8.