Excellent
#214 of 2,225 schools in WA
Top 10% in state
Lakeridge Elementary School
Elementary School · Mercer Island School District
8215 SE 78th, Mercer Island, WA 98040
Enrollment
403
Student-Teacher
19.2:1
Score
8.4
Grades
Kindergarten – 5th
Enrollment
403
Student-Teacher
19.2:1
Score
8.4
Grades
Kindergarten – 5th
Updated
2022-23
Updated 2022-23
How this school compares
In Mercer Island
#4 of 6
public schools
Washington elementary schools
#201 of 1,202
In district
#4 of 6
Mercer Island School District
Equity
9.9 / 10
Exceptional
About Lakeridge Elementary School
Lakeridge Elementary School is a public elementary school in Mercer Island, WA, part of the Mercer Island School District. The school serves approximately 403 students in grades Kindergarten – 5th with a student-teacher ratio of 19.2:1. It holds a MySchoolScout rating of 8.4/10, placing it in the 90.4th percentile among WA schools — an above average rating overall.
Students demonstrate 85% proficiency in math, 39 points above the state average and 90% in reading/language arts, 40 points above the state average. The school scores particularly well in student growth (9.1/10). Located in a neighborhood with a median household income of $202,359, where 79% of adults hold a bachelor's degree or higher.
The school is situated in a large suburban setting.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
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Data not available for this school
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Lakeridge Elementary School — Students at Lakeridge Elementary School score 88% proficient, which is above what's typical for similar communities (expected: 74%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
3%
Students qualifying for federal meal assistance
Test Scores WA SBA (2023-24)
Based on 13 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: 9.1/10.
How Lakeridge Elementary School Compares
See how Lakeridge Elementary School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 87% (2019) to 84.5% (2024). Reading/ELA proficiency has improved from 89% (2019) to 91.3% (2024).
Location
8215 SE 78th, Mercer Island, WA 98040
Nearby Alternatives
Families considering Lakeridge Elementary School may also want to explore other elementary schools in the area. Island Park Elementary (rated 9.2/10, 1.5 miles away), which scores slightly higher. Another option is Hazelwood Elementary School (rated 9.2/10, 2.1 miles away, in nearby Newcastle), which scores slightly higher. Additionally, Northwood Elementary School (rated 9.1/10, 2.9 miles away), which scores slightly higher. For more schools in Mercer Island, see our Mercer Island schools guide .
Nearby Schools
20 within 2.1 mi| School | Distance | Rating |
|---|---|---|
| Islander Middle School Mercer Island | 0.4 mi | 6.5 |
| Island Park Elementary Mercer Island | 1.5 mi | 9.2 |
| NORTHWEST YESHIVA HIGH SCHOOL Mercer Island | 1.8 mi | 6.9 |
| Griffin Home Renton | 1.7 mi | — |
| Bryn Mawr Elementary School Seattle | 2.4 mi | 4.9 |
| Lakeridge Elementary School Seattle | 2.3 mi | 4.6 |
| Emerson Elementary School Seattle | 1.9 mi | 7.7 |
| Kennydale Elementary School Renton | 1.8 mi | 6.7 |
| ST MONICA SCHOOL Mercer Island | 2.5 mi | 6.7 |
| Rainier Beach High School Seattle | 1.8 mi | 6.5 |
| West Mercer Elementary Mercer Island | 2.7 mi | 8.8 |
| Dimmitt Middle School Seattle | 2.8 mi | 4.5 |
| DERECH EMUNAH Seattle | 2.0 mi | — |
| DERECH EMUNAH DBA SEATTLE JEWISH GIRLS HIGH SCHOOL Seattle | 2.0 mi | — |
| Mercer Island High School Mercer Island | 2.8 mi | 7.2 |
| Northwood Elementary School Mercer Island | 2.9 mi | 9.1 |
| Graham Hill Elementary School Seattle | 2.1 mi | 5.0 |
| Alan T. Sugiyama High School Seattle | 2.0 mi | 7.9 |
| South Shore PK-8 School Seattle | 2.1 mi | 5.8 |
| Hazelwood Elementary School Newcastle | 2.1 mi | 9.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 98040 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$202,359
Median Home Value
$1,884,200
Median Rent
$2,464/mo
Population
25,282
College Educated
78.8%
Homeownership
66%
Avg Commute
24.9 min
Poverty Rate
4.6%
Median Age
45.8
Community Profile
The community surrounding Lakeridge Elementary School has a median household income of $202,359. It is a well-educated community where 79% of adults hold a bachelor's degree or higher. The median home value in the area is $1,884,200, with a median rent of $2,464/month. The local poverty rate of 4.6% is relatively low. The average commute for residents is 25 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 |
|---|---|
| Beacon Hill International School Seattle, WA | 8.4 |
| Chautauqua Elementary Vashon, WA | 8.4 |
| Clovis Point Elementary School East Wenatchee, WA | 8.4 |
| Crestwood Elementary School Covington, WA | 8.4 |
| E Omak Elementary Omak, WA | 8.4 |
| Grass Valley Elementary Camas, WA | 8.4 |
Frequently Asked Questions
Common questions about Lakeridge Elementary School
What grades does Lakeridge Elementary School serve?
Lakeridge Elementary School serves students in grades Kindergarten through 5th.
How many students attend Lakeridge Elementary School?
Lakeridge Elementary School has an enrollment of approximately 403 students.
What is the student-teacher ratio at Lakeridge Elementary School?
The student-teacher ratio at Lakeridge Elementary School is 19.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Lakeridge Elementary School rank in WA?
Lakeridge Elementary School is ranked #214 out of 2,225 schools in WA.
What is Lakeridge Elementary School's MySchoolScout rating?
Lakeridge Elementary School has a composite rating of 8.4 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 Lakeridge Elementary School?
Based on the most recent state assessment data, Lakeridge Elementary School has 85.2% math proficiency and 90.4% reading/ELA proficiency.
Is Lakeridge Elementary School a charter school?
No, Lakeridge Elementary School is not a charter school. It is a traditional public school operated by the local school district.
Is Lakeridge Elementary School a Title I school?
No, Lakeridge Elementary School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Lakeridge Elementary School?
3.0% of students at Lakeridge Elementary School 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
- Walk Score
- 25 Car-Dependent
- Transit Score
- 21 Minimal Transit
- Bike Score
- 13 Somewhat Bikeable
- City Safety
- Elevated (1,278/100K)
Powered by 
FBI UCR 2024. City-level (Mercer Island). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 5th
- Enrollment
- 403
- Student-Teacher Ratio
- 19.2:1
- Teachers (FTE)
- 21
- Free/Reduced Lunch
- 3.0%
- Type
- regular
- Setting
- Large Suburb
- County
- King County
- Phone
- (206) 236-3415
- Data Year
- 2023–2024
Resources & Links
District
Mercer Island School District- District Enrollment
- 3,975
- Schools in District
- 6
- Per-Pupil Spending
- $17,288
- District Rank
- #4 of 6
Other Schools in This District
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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