Cascade Middle School
Public · Grades 6–8 · 671 students
Rainier Prep
10211 12th Ave S, Seattle, WA 98168
Grades
5–8
Middle
Students
359
Enrolled 2024–25
Students per teacher
14.7 : 1
Full-time teachers
District
Rainier Prep Charter School District
King County
Schola Grade B · Above average
Letter grade (A–F) · compared with 368 Washington middle schools · How we grade
Percentiles compare this school with other Washington middle schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Rainier Prep
Rainier Prep is a charter middle school in Seattle, Washington, serving grades 5–8. It is part of Rainier Prep Charter School District. The school is located in a large suburb in King County.
In the 2024–25 school year, 359 students were enrolled, with about 14.7 students for every full-time teacher. That ratio is smaller than the typical Washington middle school (19.1 students per teacher). As a charter school, it is publicly funded and tuition-free, but operates independently of the local district under a charter from Washington State Charter School Commission. Its Schola Grade is B (above average), compared with 368 Washington middle schools.
Grades & enrollment
Students per grade, 2024–25Grades 5–8
Location & nearby schools
School details
- Type
- Charter School · What this means
- Level
- Middle
- Grades offered
- 5–8
- Enrollment (2024–25)
- 359 students
- Students per teacher
- 14.7 to 1
- Charter school
- Yes
- Charter authorizer
- Washington State Charter School Commission
- Magnet school
- No
- Locale
- Suburb — Large
- School district
- Rainier Prep Charter School District
- County
- King County
- NCES school ID
- 530033503533
Schools near Rainier Prep
All 213 schools in Seattle →
Glacier Middle School
Public · Grades 6–8 · 803 students
David T. Denny International Middle School
Public · Grades 6–8 · 722 students
Aki Kurose Middle School
Public · Grades 6–8 · 817 students
Showalter Middle School
Public · Grades 6–8 · 651 students
Mercer International Middle School
Public · Grades 6–8 · 753 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.