Home > Washington > King County

Mercer Island School District

Item: Mercer Island School District
Rating: 10
Author: Public School Review

4160 86th Ave Se
Mercer Island, WA 98040-4196

( shown in map)

10/

Top 1%

Tel: (206) 236-3300

www.mercerislandschools.org

Top Rankings

Mercer Island School District ranks among the top 20% of public school district in Washington for:

Overview

This School District

This State (WA)

# Schools

6 Schools

2,561 Schools

# Students

3,975 Students

1,101,855 Students

# Teachers

217 Teachers

62,269 Teachers

Student-Teacher Ratio

18:1

Student By Grade

View Data

Comparison of Students By Grade Trends
Grade	Mercer Island School District	Washington
Pre-K	38	74
Kind	183	227
1	261	231
2	282	242
3	279	232
4	256	240
5	273	242
6	326	239
7	306	241
8	306	243
9	337	257
10	357	262
11	370	259
12	401	271

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

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 2022-2023 school year.

The school district's graduation rate of 94% has decreased from 95% over five school years.

This School District

State Average (WA)

#1 out of 307 school districts
(Top 1%)

View Data

Overall School District Rank Trends
Year	Mercer Island School District
2023	#1
2022	#1
2021	#1
2019	#1
2018	#1
2017	#1
2016	#1
2015	#1
2014	#1
2013	#1
2012	#1

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

79%

41%

View Data

Math Proficiency Trends
Year	Mercer Island School District	Washington
2023	79%	41%
2022	80%	40%
2019	83%	50%
2018	83%	51%
2017	83%	51%
2016	81%	51%
2015	81%	49%
2014	99%	65%
2013	89%	64%
2012	91%	63%
2011	89%	60%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

85%

53%

View Data

Reading and Language Arts Proficiency Trends
Year	Mercer Island School District	Washington
2022	85%	53%
2019	87%	61%
2018	83%	61%
2017	88%	61%
2016	87%	62%
2015	82%	56%
2014	95%	74%
2013	92%	73%
2012	92%	72%
2011	93%	70%
2010	93%	70%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

81%

49%

94%

84%

View Data

Graduation Rate Trends
Year	Mercer Island School District	Washington
2023	94%	84%
2022	92%	84%
2019	93%	84%
2018	96%	88%
2017	95%	82%
2016	94%	81%
2015	94%	81%
2014	90%	80%
2013	93%	78%
2012	93%	78%
2011	94%	77%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Students by Ethnicity:

0.66

0.69

View Data

Comparison of Diversity Score Trends
Year	Mercer Island School District	Washington
2023	0.65	0.68
2022	0.64	0.68
2021	0.60	0.67
2020	0.56	0.65
2019	0.56	0.65
2018	0.52	0.64
2017	0.52	0.64
2016	0.50	0.63
2015	0.49	0.62
2014	0.47	0.61
2013	0.46	0.61
2012	0.44	0.60
2011	0.42	0.58
2010	0.40	0.56
2009	0.39	0.55
2008	0.37	0.54
2007	0.36	0.51
2006	0.36	0.49
2005	0.35	0.49
2004	0.35	0.48
2003	0.35	0.47
2002	0.32	0.45
2001	0.31	0.44
2000	0.31	0.42
1999	0.31	0.40
1998	0.31	0.40
1997	0.30	0.39
1996	0.29	0.39
1995	0.27	0.36
1994	0.29	0.35
1993	0.28	0.34
1992	0.26	0.33
1991	0.25	0.32

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% American Indian

n/a

% Asian

28%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Mercer Island School District	Washington
2023	27%	9%
2022	26%	9%
2021	25%	8%
2020	22%	8%
2019	22%	8%
2018	21%	8%
2017	21%	8%
2016	20%	8%
2015	19%	8%
2014	19%	7%
2013	19%	8%
2012	20%	7%
2011	19%	7%
2010	22%	10%
2009	21%	10%
2008	20%	9%
2007	19%	8%
2006	19%	8%
2005	19%	8%
2004	18%	8%
2003	17%	8%
2002	17%	8%
2001	15%	7%
2000	16%	7%
1999	16%	7%
1998	15%	7%
1997	14%	7%
1996	15%	7%
1995	12%	6%
1994	13%	6%
1993	13%	6%
1992	12%	6%
1991	12%	6%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Hispanic

26%

View Data

Hispanic Student Percentage Comparison Over Years (1993-2023)
Year	Mercer Island School District	Washington
2023	7%	26%
2022	7%	25%
2021	5%	25%
2020	5%	24%
2019	5%	24%
2018	4%	23%
2017	4%	23%
2016	4%	22%
2015	4%	22%
2014	4%	21%
2013	4%	20%
2012	3%	20%
2011	3%	18%
2010	3%	16%
2009	3%	16%
2008	2%	15%
2007	2%	14%
2006	2%	14%
2005	1%	13%
2004	2%	12%
2003	2%	12%
2002	1%	11%
2001	1%	10%
2000	1%	10%
1999	1%	9%
1998	1%	9%
1997	2%	8%
1996	1%	8%
1995	1%	7%
1994	1%	7%
1993	1%	6%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Black

View Data

Black Student Percentage Comparison Over Years (1992-2023)
Year	Mercer Island School District	Washington
2023	1%	5%
2022	1%	5%
2021	1%	5%
2020	1%	5%
2019	1%	5%
2018	1%	4%
2017	1%	4%
2015	1%	4%
2014	1%	5%
2013	1%	5%
2012	1%	5%
2011	2%	5%
2010	1%	6%
2009	1%	5%
2008	1%	6%
2007	1%	6%
2006	1%	6%
2005	1%	6%
2004	1%	6%
2003	2%	6%
2002	1%	5%
2001	2%	5%
2000	2%	5%
1999	2%	5%
1998	2%	5%
1997	2%	5%
1996	1%	4%
1995	2%	5%
1994	2%	4%
1993	2%	4%
1992	2%	4%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% White

49%

48%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Mercer Island School District	Washington
2023	51%	49%
2022	53%	50%
2021	57%	51%
2020	61%	53%
2019	61%	53%
2018	66%	55%
2017	66%	55%
2016	68%	56%
2015	69%	57%
2014	70%	58%
2013	71%	59%
2012	72%	60%
2011	74%	63%
2010	74%	64%
2009	75%	65%
2008	77%	66%
2007	78%	68%
2006	78%	69%
2005	79%	70%
2004	79%	71%
2003	79%	71%
2002	81%	73%
2001	82%	74%
2000	81%	75%
1999	81%	76%
1998	82%	76%
1997	82%	77%
1996	83%	78%
1995	85%	79%
1994	84%	80%
1993	84%	81%
1992	85%	81%
1991	85%	82%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Hawaiian

n/a

% Two or more races

15%

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Mercer Island School District	Washington
2023	14%	9%
2022	13%	9%
2021	12%	9%
2020	11%	8%
2019	11%	8%
2018	8%	8%
2017	8%	8%
2016	8%	7%
2015	7%	7%
2014	6%	7%
2013	5%	6%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

All Ethnic Groups

District Revenue and Spending

The revenue/student of $20,484 is higher than the state median of $18,800. The school district revenue/student has grown by 13% over four school years.

The school district's spending/student of $18,521 is less than the state median of $19,251. The school district spending/student has grown by 10% over four school years.

This School District

This State (WA)

Total Revenue

$81 MM

$20,715 MM

View Data

Total Revenues Trends
Year	Mercer Island School District	Washington
2023	$81 MM	$18 MM
2022	$81 MM	$18 MM
2021	$81 MM	$18 MM
2020	$81 MM	$18 MM
2019	$84 MM	$16 MM
2018	$76 MM	$13 MM
2017	$72 MM	$13 MM
2016	$66 MM	$14 MM
2015	$51 MM	$12 MM
2014	$57 MM	$12 MM
2012	$55 MM	$12 MM
2011	$53 MM	$12 MM
2010	$51 MM	$12 MM
2009	$49 MM	$12 MM
2008	$44 MM	$11 MM
2007	$42 MM	$10 MM
2006	$41 MM	$10 MM
2005	$40 MM	$9 MM
2004	$39 MM	$9 MM
2003	$40 MM	$9 MM
2002	$35 MM	$9 MM
2001	$35 MM	$9 MM
2000	$34 MM	$8 MM
1999	$33 MM	$8 MM
1998	$32 MM	$7 MM
1997	$29 MM	$7 MM
1996	$28 MM	$7 MM
1995	$25 MM	$6 MM

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Spending

$74 MM

$21,212 MM

View Data

Total Expenditure Trends
Year	Mercer Island School District	Washington
2023	$74 MM	$15 MM
2022	$75 MM	$17 MM
2021	$74 MM	$15 MM
2020	$75 MM	$17 MM
2019	$75 MM	$16 MM
2018	$71 MM	$14 MM
2017	$71 MM	$13 MM
2016	$116 MM	$13 MM
2015	$45 MM	$10 MM
2014	$54 MM	$11 MM
2012	$50 MM	$12 MM
2011	$46 MM	$11 MM
2010	$45 MM	$10 MM
2009	$45 MM	$11 MM
2008	$42 MM	$11 MM
2007	$39 MM	$10 MM
2006	$39 MM	$9 MM
2005	$36 MM	$9 MM
2004	$36 MM	$9 MM
2003	$35 MM	$8 MM
2002	$34 MM	$9 MM
2001	$35 MM	$9 MM
2000	$32 MM	$8 MM
1999	$31 MM	$8 MM
1998	$44 MM	$7 MM
1997	$45 MM	$7 MM
1996	$29 MM	$7 MM
1995	$39 MM	$6 MM

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Revenue / Student

$20,484

$18,800

View Data

Average Revenue Per Student Trends
Year	Mercer Island School District	Washington
2023	$20,070	$20,861
2022	$18,074	$20,595
2021	$19,423	$22,261
2020	$18,074	$20,595
2018	$16,875	$17,034
2017	$16,001	$16,266
2016	$14,931	$16,359
2015	$11,390	$11,994
2014	$13,142	$12,940
2012	$12,683	$12,445
2011	$12,543	$12,577
2010	$12,277	$11,994
2009	$11,858	$12,260
2008	$10,964	$11,273
2007	$10,401	$10,323
2006	$9,946	$9,385
2005	$9,657	$8,889
2004	$9,470	$9,060
2003	$9,666	$8,698
2002	$8,456	$7,902
2001	$8,094	$8,010
2000	$7,987	$7,416
1999	$7,925	$7,257
1998	$7,924	$6,806
1997	$7,402	$6,273
1995	$6,915	$5,897
1992	$5,805	$5,711
1990	$5,554	$4,869

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Spending / Student

$18,521

$19,251

View Data

Average Expenditure Per Student Trends
Year	Mercer Island School District	Washington
2023	$18,146	$17,883
2022	$16,746	$19,584
2021	$17,562	$19,082
2020	$16,746	$19,584
2018	$15,634	$17,238
2017	$15,721	$16,506
2016	$26,050	$15,517
2015	$10,026	$10,499
2014	$12,513	$12,404
2012	$11,574	$11,905
2011	$10,950	$11,693
2010	$10,806	$10,499
2009	$10,940	$11,231
2008	$10,353	$11,125
2007	$9,693	$9,967
2006	$9,364	$8,893
2005	$8,777	$8,879
2004	$8,605	$8,617
2003	$8,434	$8,253
2002	$8,092	$7,974
2001	$8,084	$8,055
2000	$7,489	$7,278
1999	$7,511	$7,029
1998	$10,878	$6,800
1997	$11,526	$6,422
1995	$10,902	$6,024
1992	$5,812	$6,438
1990	$5,415	$4,978

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Best Mercer Island School District Public Schools (2026)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Island Park Elementary School

(Math: 85-89% | Reading: 90-94%)
:

10/

Top 1%

Add to Compare

5437 Island Crest Way
Mercer Island, WA 98040
(206) 236-3410

Gr: K-5 | 361 students Student-teacher ratio: 16:1 Minority enrollment: 44%

Rank: #22.

Lakeridge Elementary School

(Math: 87% | Reading: 88%)
:

10/

Top 5%

Add to Compare

8215 Se 78th
Mercer Island, WA 98040
(206) 236-3415

Gr: K-5 | 403 students Student-teacher ratio: 18:1 Minority enrollment: 55%

Rank: #33.

Mercer Island High School

(Math: 81% | Reading: 94%)
:

10/

Top 5%

Add to Compare

9100 Se 42nd
Mercer Island, WA 98040
(206) 236-3345

Gr: 9-12 | 1,465 students Student-teacher ratio: 20:1 Minority enrollment: 47%

Rank: #44.

West Mercer Elementary School

(Math: 85% | Reading: 86%)
:

10/

Top 5%

Add to Compare

4141 81st Ave Se
Mercer Island, WA 98040
(206) 236-3430

Gr: K-5 | 410 students Student-teacher ratio: 16:1 Minority enrollment: 58%

Rank: #55.

Islander Middle School

(Math: 74% | Reading: 80%)
:

10/

Top 5%

Add to Compare

8225 Se 72nd
Mercer Island, WA 98040
(206) 236-3413

Gr: 6-8 | 938 students Student-teacher ratio: 20:1 Minority enrollment: 52%

Rank: #66.

Northwood Elementary School

(Math: 70-74% | Reading: 75-79%)
:

10/

Top 10%

Add to Compare

4030 86th Ave Se
Mercer Island, WA 98040
(253) 841-8740

Gr: PK-5 | 398 students Student-teacher ratio: 16:1 Minority enrollment: 59%

Frequently Asked Questions

How many schools belong to Mercer Island School District?

Mercer Island School District manages 6 public schools serving 3,975 students.

What is the rank of Mercer Island School District?

Mercer Island School District is ranked #1 out of 306 school districts in Washington (top 1%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of Washington school districts for: Highest overall rank (Top 1%), Highest math proficiency (Top 1%), Highest reading/language arts proficiency (Top 1%), Highest science proficiency (Top 1%), Highest graduation rate (Top 5%) and Most diverse schools (Top 1%)

What is the racial composition of students in Mercer Island School District?

49% of Mercer Island School District students are White, 28% of students are Asian, 15% of students are Two or more races, 7% of students are Hispanic, and 1% of students are Black.

What is the student/teacher ratio of Mercer Island School District?

Mercer Island School District has a student/teacher ratio of 18:1, which is equal to the Washington state average of 18:1.

What is Mercer Island School District's spending/student ratio?

The school district's spending/student of $18,521 is less than the state median of $19,251. The school district spending/student has grown by 10% over four school years.

Recent Articles

May 14, 2026

Understanding School Safety Policies in 2026

Learn how school safety policies are evolving in 2026, including mental health support, AI monitoring, emergency planning, and parent rights.

May 14, 2026

How to Support Your Child’s Mental Health at School

Practical guidance for parents and educators on supporting child mental health during the school year, with expert strategies and 2026 insights.

May 14, 2026

What a National Blue Ribbon of Distinction Means in 2026

Understand what a National Blue Ribbon of Distinction means, how schools earn it, and why it matters for academic quality in 2026.

Quick Facts (2026)

District size: 6 schools
Grades: PK-12
Enrollment: 3,975 students
Student-Teacher Ratio: 18:1
Minority Enrollment: 51%
: 94% (Top 5% in WA)
: Top 1%
: 79% (Top 1%)
: 85% (Top 1%)
: 81% (Top 1%)
Source: National Center for Education Statistics (NCES), WA Dept. of Education