Lakeridge Elementary School

8215 Se 78th
Mercer Island, WA 98040
(School attendance zone shown in map)
10/
10
Top 5%
Serving 401 students in grades Kindergarten-5, Lakeridge Elementary School ranks in the top 5% of all schools in Washington for overall test scores (math proficiency is top 1%, and reading proficiency is top 1%).
The percentage of students achieving proficiency in math is 87% (which is higher than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 88% (which is higher than the Washington state average of 53%).
The student-teacher ratio of 17:1 is equal to the Washington state level of 17:1.
Minority enrollment is 56% of the student body (majority Asian), which is higher than the Washington state average of 53% (majority Hispanic and Asian).

Quick Facts (2026)

  • Grades: Kindergarten-5
  • Enrollment: 401 students
  • Student-Teacher Ratio: 17:1
  • Minority Enrollment: 56%
  • : Top 5% in WA
  • : 87% (Top 1%)
  • : 88% (Top 5%)
  • : 85-89% (Top 5%)
  • : Lakeridge Elementary School serves the southern part of Mercer Island, WA, covering an area of approximately 2.3 square miles. Families within this zone typically have a drive of 5-10 minutes to the school, with the furthest edge located about 1.8 miles away.
  • Source: National Center for Education Statistics (NCES), WA Dept. of Education

Top Rankings

Lakeridge Elementary School ranks among the top 20% of public schools in Washington for:

Category
Attribute
Reading/Language Arts Proficiency

School Overview

Lakeridge Elementary School's student population of 401 students has stayed relatively flat over five school years.
The teacher population of 23 teachers has declined by 8% over five school years.
Grades Offered
Grades Kindergarten-5
(No virtual instruction)
Total Students
401 students
Total Classroom Teachers
23 teachers
School Calendar

School Rankings

Lakeridge Elementary School ranks within the top 5% of all 2,088 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Lakeridge Elementary School is 0.68, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
This School
State Level (WA)
#22 out of 2088 schools
(Top 5%)
87%
41%
88%
53%
85-89%
49%
Student-Teacher Ratio
17:1
17:1
American Indian
n/a
1%
Asian
29%
9%
Hispanic
5%
27%
Black
1%
5%
White
44%
47%
Hawaiian
n/a
2%
Two or more races
21%
9%
All Ethnic Groups
0.68
(22-23)
2%
34.7%
Eligible for Free Lunch
1%
39%
Eligible for Reduced Lunch
2%
9%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WA Dept. of Education

Frequently Asked Questions

What is Lakeridge Elementary School's ranking?
Lakeridge Elementary School is ranked #22 out of 2,088 schools, which ranks it among the top 5% of public schools in Washington.
What schools are Lakeridge Elementary School often compared to?
Lakeridge Elementary Schoolis often viewed alongside schools like West Mercer Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
87% of students have achieved math proficiency (compared to the 41% WA state average), while 88% of students have achieved reading proficiency (compared to the 53% WA state average).
How many students attend Lakeridge Elementary School?
401 students attend Lakeridge Elementary School.
What is the racial composition of the student body?
44% of Lakeridge Elementary School students are White, 29% of students are Asian, 21% of students are Two or more races, 5% of students are Hispanic, and 1% of students are Black.
What is the student-teacher ratio of Lakeridge Elementary School?
Lakeridge Elementary School has a student ration of 17:1, which is equal to the Washington state average of 17:1.
What grades does Lakeridge Elementary School offer ?
Lakeridge Elementary School offers enrollment in grades Kindergarten-5 (No virtual instruction).
What school district is Lakeridge Elementary School part of?
Lakeridge Elementary School is part of Mercer Island School District.

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Quick Facts (2026)

  • Grades: Kindergarten-5
  • Enrollment: 401 students
  • Student-Teacher Ratio: 17:1
  • Minority Enrollment: 56%
  • : Top 5%
  • : 87% (Top 1%)
  • : 88% (Top 5%)
  • : 85-89% (Top 5%)
  • : Lakeridge Elementary School serves the southern part of Mercer Island, WA, covering an area of approximately 2.3 square miles. Families within this zone typically have a drive of 5-10 minutes to the school, with the furthest edge located about 1.8 miles away.
  • Source: National Center for Education Statistics (NCES), WA Dept. of Education

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