Top Rankings
Mercer Island School District ranks among the top 20% of public school district in Washington for:
Category
Attribute
Overall Rank
Highest overall rank (Top 1%)
Math Proficiency
Highest math proficiency (Top 1%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 1%)
Science Proficiency
Highest science proficiency (Top 1%)
Graduation Rate
Highest graduation rate (Top 10%)
Diversity
Most diverse schools (Top 1%)
For the 2025 school year, there is 1 public preschool serving 398 students in Mercer Island School District. This district's average pre testing ranking is 10/10, which is in the top 5% of public pre schools in Washington.
Public Preschool in Mercer Island School District have an average math proficiency score of 77% (versus the Washington public pre school average of 43%), and reading proficiency score of 77% (versus the 49% statewide average).
The top ranked public preschool in Mercer Island School District is Northwood Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking. Minority enrollment is 59% of the student body (majority Asian), which is more than the Washington public preschool average of 54% (majority Hispanic).
Overview
This School District
This State (WA)
# Schools
6 Schools
801 Schools
# Students
3,975 Students
280,418 Students
# Teachers
217 Teachers
17,799 Teachers
Student : Teacher Ratio
18:1
18:1
District Rank
Mercer Island School District, which is ranked within the top 1% of all 306 school districts in Washington (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 92% has decreased from 94% over five school years.
Overall District Rank
#1 out of 307 school districts
(Top 1%)
(Top 1%)

Math Test Scores (% Proficient)
80%
40%

Reading/Language Arts Test Scores (% Proficient)
85%
53%

Science Test Scores (% Proficient)
81%
49%
Graduation Rate
92%
84%

Students by Ethnicity:
Diversity Score
0.66
0.71
# American Indian Students
4 Students
2,844 Students
% American Indian Students
n/a
1%
# Asian Students
1,088 Students
25,971 Students
% Asian Students
28%
9%
# Hispanic Students
289 Students
73,094 Students
% Hispanic Students
7%
26%
# Black Students
40 Students
16,473 Students
% Black Students
1%
6%
# White Students
1,951 Students
129,086 Students
% White Students
49%
46%
# Hawaiian Students
6 Students
5,103 Students
% Hawaiian Students
n/a
2%
# Two or more races Students
578 Students
27,229 Students
% of Two or more races Students
15%
10%
Students by Grade:
# Students in PK Grade:
38
23,952
# Students in K Grade:
183
43,573
# Students in 1st Grade:
261
42,048
# Students in 2nd Grade:
282
43,955
# Students in 3rd Grade:
279
39,809
# Students in 4th Grade:
256
41,098
# Students in 5th Grade:
273
39,252
# Students in 6th Grade:
326
3,085
# Students in 7th Grade:
306
1,010
# Students in 8th Grade:
306
1,067
# Students in 9th Grade:
337
319
# Students in 10th Grade:
357
337
# Students in 11th Grade:
370
333
# Students in 12th Grade:
401
580
# Ungraded Students:
-
-
District Revenue and Spending
The revenue/student of $20,484 is higher than the state median of $18,796. The school district revenue/student has grown by 5% over four school years.
The school district's spending/student of $18,521 is less than the state median of $19,246. The school district spending/student has grown by 5% over four school years.
Total Revenue
$81 MM
$20,715 MM

Spending
$74 MM
$21,212 MM

Revenue / Student
$20,484
$18,796

Spending / Student
$18,521
$19,246

Best Mercer Island School District Public Preschools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Northwood Elementary School
(Math: 75-79% | Reading: 75-79%)
Rank:
Rank:
10/
Top 10%10
4030 86th Ave Se
Mercer Island, WA 98040
(253) 841-8740
Mercer Island, WA 98040
(253) 841-8740
Grades: PK-5
| 398 students
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