Mount Si High School
| Name | Mount Si High School |
| Grades | Class 09 to Class 12 |
| Address | 8651 MEADOWBROOK WAY SE |
| City | Snoqualmie |
| School District | Snoqualmie Valley School District |
| County | King County |
| Zipcode | 98065 |
| Phone No. | (425)831-8100 |
| State | Washington |
| Town | Fringe |
| Students | 2061 |
| Teachers | 90 |
| Student Teacher Ratio | 22.8 students per teacher |
| Charter School | No |
| Magnet School | No |
Mount Si High School is located at 8651 MEADOWBROOK WAY SE in Snoqualmie city of King County county in Washington. This school comes under Snoqualmie Valley School District. You can call them at (425)831-8100 for more details. This is not a magnet school. Total two thousand sixty one students from class 09 to class 12 study in this school who are taught by ninety teachers. This is not a charter school. The student teacher ratio of this school is 22.8.