King County · Public school
Mount Rainier High School
Key facts
- Address
- 22450 19th Ave S, Des Moines, WA 98198
- Phone
- (206) 631-7000
- District
- Highline School District
- County
- King County
- Grades
- 9–12 (high)
- Students (2025–26)
- 1,729
- Students per teacher
- 24.0
- Low-income
- 60%
- English learners
- 29%
- Special education
- 11%
- Setting
- Suburb
- Spending per student (2024–25)
- $18,330 (Washington $19,341)
Academics vs district and state 2025–26
| Measure | This school | District | State |
|---|---|---|---|
| Reading (ELA) met standard | 61% | 35% | 53% |
| Math met standard | 30% | 24% | 43% |
| Science met standard | 42% | 33% | 51% |
| Regular attendance | 58% | 67% | 74% |
| 9th graders on track | 72% | 65% | 73% |
| Dual credit | 65% | 68% | 70% |
| Graduation rate (4-year) 2024–25 | 88% | 82% | 83% |
| Experienced teachers 2024–25 | 70% | 69% | 78% |
| Students disciplined 2024–25 | 1.2% | 3.4% | 3.7% |
Points are percentage points. What do these numbers mean? Source: OSPI Report Card, data.wa.gov; tests CC BY-ND 4.0, graduation CC BY-NC-ND 3.0 IGO, as published.
Programs
Dual-language and heritage/tribal language programs (2025–26):
- Heritage language: Dari
- Heritage language: Spanish
Students
Among Washington high schools
Regular attendance58% · Higher than at about 3 in 10 high schools
Low-income students60% · A larger share than at about 7 in 10 high schools
What this means
“About 7 in 10” means 7 of every 10 Washington high schools have a lower number. The band is the middle half of schools and the line is the median (the school in the middle), which is not the state average. These describe who a school serves, not how good it is. What do these numbers mean?
Test results over time
What this means
Each year a different group of students takes the tests, so look for a direction that lasts several years, not one jump. No tests in 2019–20; the 2020–21 tests were shortened and are not shown. What do these numbers mean?
Reading these numbers: test results are the share of tested students who met the state standard; growth is the median student growth percentile (50 = typical); low-income means eligible for free or reduced-price meals. Results describe students as a group, so visit and talk to families too. What do these numbers mean?