Excellent
#77 of 2,225 schools in WA
Top 3% in state
Rainier Prep
Middle School · Rainier Prep Charter School District
10211 12th Ave S, Seattle, WA 98168
Enrollment
333
Student-Teacher
14.5:1
Score
8.9
Grades
5th – 8th
Enrollment
333
Student-Teacher
14.5:1
Score
8.9
Grades
5th – 8th
Updated
2022-23
Updated 2022-23
How this school compares
In Seattle
#4 of 34
public schools
Washington middle schools
#2 of 374
Equity
9.6 / 10
Exceptional
About Rainier Prep
Rainier Prep is a public middle school in Seattle, WA, part of the Rainier Prep Charter School District. The school serves approximately 333 students in grades 5th – 8th with a student-teacher ratio of 14.5:1. It holds a MySchoolScout rating of 8.9/10, placing it in the 96.6th percentile among WA schools — an above average rating overall.
Students demonstrate 57% proficiency in math, 18 points above the state average and 62% in reading/language arts, 12 points above the state average. The school scores particularly well in student growth (8.9/10). Located in a neighborhood with a median household income of $84,937, where 24% of adults hold a bachelor's degree or higher.
The school is situated in a large suburban setting.
What's said publicly about Rainier Prep
Synthesized from public, attributable sources. Updated May 2026.
Sources (1)
What Parents Should Know
Rainier Prep is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Rainier Prep — Students at Rainier Prep score 60% proficient, which is above what's typical for similar communities (expected: 34%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
68.8%
Students qualifying for federal meal assistance
Test Scores WA SBA (2023-24)
Based on 16 test records from WA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.9/10.
How Rainier Prep Compares
See how Rainier Prep performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 62% (2019) to 56.4% (2024). Reading/ELA proficiency has improved from 61% (2019) to 64.5% (2024).
Location
10211 12th Ave S, Seattle, WA 98168
Nearby Alternatives
Families considering Rainier Prep may also want to explore other middle schools in the area. Rising Star Elementary School (rated 9.4/10, 1.8 miles away), which scores slightly higher. Another option is Highland Park Elementary School (rated 8.4/10, 1.7 miles away), with a comparable rating. Additionally, Raisbeck Aviation High School (rated 7.9/10, 1.1 miles away, in nearby Tukwila), with a comparable rating. For more schools in Seattle, see our Seattle schools guide .
Nearby Schools
20 within 2.0 mi| School | Distance | Rating |
|---|---|---|
| Beverly Park Elem at Glendale Seattle | 0.2 mi | 7.4 |
| Innovation Heights Academy Burien | 0.7 mi | 6.4 |
| Concord International School Seattle | 0.9 mi | 6.0 |
| Raisbeck Aviation High School Tukwila | 1.1 mi | 7.9 |
| ONE SCHOOL GLOBAL NORTH AMERICA SEATTLE CAMPUS Seattle | 1.2 mi | — |
| Hilltop Elementary Seattle | 1.5 mi | 3.4 |
| White Center Heights Elementary Seattle | 1.2 mi | 7.5 |
| Cedarhurst Elementary Burien | 1.9 mi | 6.8 |
| Highline Open Doors 1418 Burien | 1.5 mi | 4.7 |
| Cascade Middle School Seattle | 1.5 mi | 4.7 |
| Evergreen High School Seattle | 1.5 mi | 5.9 |
| Mount View Elementary Seattle | 1.6 mi | 7.4 |
| Highland Park Elementary School Seattle | 1.7 mi | 8.4 |
| Hazel Valley Elementary Burien | 2.1 mi | 4.5 |
| Rising Star Elementary School Seattle | 1.8 mi | 9.4 |
| GLENDALE LUTHERAN SCHOOL Burien | 2.2 mi | 6.1 |
| JOHN F KENNEDY CATHOLIC HIGH SCHOOL Burien | 2.4 mi | 6.6 |
| WEST SEATTLE MONTESSORI Seattle | 1.8 mi | 6.2 |
| ST BERNADETTE SCHOOL Burien | 2.1 mi | 6.2 |
| Wing Luke Elementary School Seattle | 2.0 mi | 5.1 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 98168 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$84,937
Median Home Value
$500,600
Median Rent
$1,724/mo
Population
34,814
College Educated
24%
Homeownership
53.2%
Avg Commute
27.1 min
Poverty Rate
14.5%
Median Age
38
Community Profile
The community surrounding Rainier Prep has a median household income of $84,937. It is a community where 24% of adults hold a bachelor's degree or higher. The median home value in the area is $500,600, with a median rent of $1,724/month. The area has a poverty rate of 14.5%. The average commute for residents is 27 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Sonoji Sakai Intermediate Bainbridge Island, WA | 8.5 |
| Odyssey Middle School Camas, WA | 8.0 |
| Lakeside Middle School Nine Mile Falls, WA | 7.9 |
| Garry Middle School Spokane, WA | 7.8 |
| HAMLIN ROBINSON SCHOOL Seattle, WA | 7.6 |
| Royal Intermediate School Royal City, WA | 7.6 |
Frequently Asked Questions
Common questions about Rainier Prep
What grades does Rainier Prep serve?
Rainier Prep serves students in grades 5th through 8th.
How many students attend Rainier Prep?
Rainier Prep has an enrollment of approximately 333 students.
What is the student-teacher ratio at Rainier Prep?
The student-teacher ratio at Rainier Prep is 14.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Rainier Prep rank in WA?
Rainier Prep is ranked #77 out of 2,225 schools in WA.
What is Rainier Prep's MySchoolScout rating?
Rainier Prep has a composite rating of 8.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Rainier Prep?
Based on the most recent state assessment data, Rainier Prep has 57.3% math proficiency and 62.0% reading/ELA proficiency.
Is Rainier Prep a charter school?
Yes, Rainier Prep is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Rainier Prep a Title I school?
No, Rainier Prep is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Rainier Prep?
68.8% of students at Rainier Prep qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
FBI UCR 2024. City-level (Seattle). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 5th – 8th
- Enrollment
- 333
- Student-Teacher Ratio
- 14.5:1
- Teachers (FTE)
- 23
- Free/Reduced Lunch
- 68.8%
- Type
- regular
- Setting
- Large Suburb
- County
- King County
- Phone
- (206) 494-5979
- Data Year
- 2023–2024
Resources & Links
District
Rainier Prep Charter School District- District Enrollment
- 333
- Schools in District
- 1
- Per-Pupil Spending
- $18,821
- District Rank
- #1 of 1
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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