Rainier Prep
🇺🇸 Official data · 2025Seattle, Washington 98168 · Rainier Prep Charter School District
#136 of 363 middle schools in Washington
#5420 of 15,369 nationally
About Rainier Prep
Rainier Prep is a charter middle located in Seattle, in the Rainier Prep Charter School District school district of Washington, United States. It caters for Grades 5–8. In 2025 it enrolled 359 students. Publicly funded charter schools operating under a performance contract; free to attend.
Its Success Index (US) is 60.3 out of 100, placing it in the top 50% of middle schools in United States and 136th of 363 ranked middle schools in Washington. Its strongest component is math proficiency (80th percentile), and its weakest is community advantage (fewer free/reduced-price lunch) (29th percentile).
Other published figures: enrollment 359.
There are 113 schools in Seattle; Rainier Prep ranks 65th of 110 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)62%
- Reading proficiency (30%)61%
- Community advantage (fewer free/reduced-price lunch) (25%)74.1%
- Students per teacher (15%)15.0
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Rainier Prep by the official sources.
- Enrollment
- 359
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 74.1%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 15.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 61%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 62%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
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Schools near Rainier Prep
Closest schools by straight-line distance, with their Success Index (US).
Beverly Park Elem at Glendale
Seattle · Public elementary · Grades PK–5
411 students · 243 m away
Southern Heights Elementary
Seattle · Public elementary · Grades PK–5
0 students · 1.1 km away
Concord International School
Seattle · Public elementary · Grades PK–5
268 students · 1.4 km away
White Center Heights Elementary
Seattle · Public elementary · Grades PK–5
527 students · 1.9 km away
Head Start
Seattle · Public other · Grades PK–PK
0 students · 2.1 km away
Cascade Middle School
Seattle · Public middle · Grades 6–8
671 students · 2.3 km away
Evergreen High School
Seattle · Public high · Grades 9–12
1,080 students · 2.4 km away
Hilltop Elementary
Seattle · Public elementary · Grades PK–5
519 students · 2.5 km away
Mount View Elementary
Seattle · Public elementary · Grades PK–5
460 students · 2.5 km away
Highland Park Elementary School
Seattle · Public elementary · Grades PK–5
300 students · 2.8 km away
Similar schools
Charter middle schools in Washington with a comparable Enrollment.
Frequently asked questions
Is Rainier Prep a good school?
Rainier Prep has a Success Index (US) of 60.3 out of 100 (Top 50% of middle schools in United States) and ranks #136 of 363 in Washington. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Rainier Prep rank in Washington?
Rainier Prep ranks #136 of 363 middle schools in Washington and #5420 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend Rainier Prep?
Rainier Prep had 359 students in 2025.
Is Rainier Prep a elementary school or a high school?
Rainier Prep is classified as a middle covering Grades 5–8. It is a charter school.
What other schools are near Rainier Prep?
There are 10 schools within 15 km of Rainier Prep; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.