Item: Mercer Island School District
Rating: 10
Author: �鶹������ý

Home > Washington > King County

Mercer Island School District

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

( shown in map)

10/

Top 1%

Tel: (206) 236-3300

<�鶹��ý class="so-dt-title" id="top-rankings">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 5%)

Diversity

Most diverse schools (Top 1%)

For the 2026 school year, there is 1 public preschool serving 398 students in Mercer Island School District. This district's average pre is 10/10, which is in the top 5% of public pre schools in Washington.

Public Preschool in Mercer Island School District have an score of 72% (versus the Washington public pre school average of 45%), and 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).

<�鶹��ý class='so-dt-title' id="overview">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

<�鶹��ý class='so-dt-title' id="student-by-grade">Student By Grade

View Data

Comparison of Students By Grade Trends
Grade	Mercer Island School District	Washington
Pre-K	38	71
Kind	45	129
1	78	124
2	70	130
3	58	118
4	58	122
5	51	116

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<�鶹��ý class='so-dt-title' id="district-rank">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

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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%

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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%

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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%

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<�鶹��ý class='so-dt-title' id="students-by-ethnicity">Students by Ethnicity:

0.66

0.71

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

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% 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%

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% 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%

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% 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%

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% White

49%

46%

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%

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% Hawaiian

n/a

% Two or more races

15%

10%

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%

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All Ethnic Groups

<�鶹��ý class="so-dt-title" id="district-revenue-and-spending">District Revenue and Spending

The revenue/student of $20,484 is higher than the state median of $18,799. 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 $19,250. 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

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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

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Revenue / Student

$20,484

$18,799

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

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Spending / Student

$18,521

$19,250

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

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Best Mercer Island School District Public Preschools (2026)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Northwood Elementary School

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

10/

Top 10%

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

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

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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