West Mercer Elementary School (Ranked Top 5% for 2025-26)

4141 81st Ave Se
Mercer Island, WA 98040

( shown in map)

10/

Top 5%

Serving 410 students in grades Kindergarten-5, West Mercer Elementary School ranks in the top 5% of all schools in Washington for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).

The percentage of students achieving is 85% (which is higher than the Washington state average of 41%). The percentage of students achieving is 86% (which is higher than the Washington state average of 53%).

The student-teacher ratio of 16:1 is equal to the Washington state level of 16:1.

Minority enrollment is 58% of the student body (majority Asian), which is higher than the Washington state average of 52% (majority Hispanic and Asian).

Quick Facts (2025-26)

Grades: Kindergarten-5
Enrollment: 410 students
Student-Teacher Ratio: 16:1
Minority Enrollment: 58%
: Top 5% in WA
: 85% (Top 5%)
: 86% (Top 5%)
: 85-89% (Top 5%)
Source: National Center for Education Statistics (NCES), WA Dept. of Education

Top Rankings

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

School Overview

West Mercer Elementary School's student population of 410 students has declined by 14% over five school years.

The teacher population of 26 teachers has declined by 18% over five school years.

Grades Offered

Grades Kindergarten-5
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	West Mercer Elementary School
Kind	58
1	67
2	77
3	66
4	73
5	69

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Total Students

410 students

View Data

Total Students Trends Over Years (1987-2023)
Year	West Mercer Elementary School
2023	422
2022	427
2021	428
2020	481
2019	481
2018	517
2017	517
2016	703
2015	715
2014	726
2013	702
2012	722
2011	704
2010	640
2009	659
2008	608
2007	610
2006	606
2005	584
2004	588
2003	576
2002	604
2001	633
2000	615
1999	622
1998	594
1997	599
1996	536
1995	559
1994	544
1993	549
1992	523
1991	505
1990	483
1989	455
1988	390
1987	415

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Gender %

Total Classroom Teachers

26 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	West Mercer Elementary School
2023	23
2022	27
2021	28
2020	32
2019	32
2018	30
2017	30
2016	35
2015	39
2013	35
2012	35
2011	32
2010	29
2009	29
2008	29
2007	29
2006	29
2005	28
2004	28
2003	30
2002	30
2001	31
2000	30
1999	30
1998	29
1997	28
1996	25
1995	26
1994	26
1993	26
1992	27
1991	21
1990	25

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School Calendar

School Rankings

West Mercer 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 of West Mercer Elementary School is 0.69, which is equal to 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)

#44 out of 2088 schools
(Top 5%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	West Mercer Elementary School
2023	#44
2022	#42
2021	#54
2019	#54
2018	#49
2017	#42
2016	#89
2015	#63
2013	#82
2012	#43
2011	#37

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85%

41%

View Data

Math Proficiency Comparison Over Years (2010-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	85%	41%	79%
2022	83%	40%	80%
2019	81%	50%	83%
2018	84%	51%	83%
2017	86%	51%	83%
2016	80%	51%	81%
2015	81%	49%	81%
2013	86%	64%	89%
2012	88%	63%	91%
2011	87%	60%	89%
2010	86%	54%	86%

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86%

53%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2022	86%	53%	85%
2019	89%	61%	87%
2018	87%	61%	83%
2017	89%	61%	88%
2016	84%	62%	87%
2015	85%	56%	82%
2013	93%	73%	92%
2012	93%	72%	92%
2011	93%	70%	93%
2010	95%	70%	93%

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85-89%

49%

Student-Teacher Ratio

16:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	18:1	16:1	19:1
2022	16:1	16:1	18:1
2021	15:1	16:1	18:1
2020	15:1	17:1	18:1
2019	15:1	17:1	18:1
2018	17:1	19:1	19:1
2017	17:1	18:1	19:1
2016	20:1	19:1	20:1
2015	18:1	18:1	19:1
2013	20:1	19:1	20:1
2012	21:1	20:1	21:1
2011	22:1	19:1	21:1
2010	22:1	19:1	21:1
2009	23:1	19:1	20:1
2008	21:1	19:1	20:1
2007	21:1	19:1	20:1
2006	21:1	19:1	20:1
2005	21:1	19:1	21:1
2004	21:1	19:1	21:1
2003	19:1	19:1	21:1
2002	20:1	19:1	20:1
2001	20:1	20:1	21:1
2000	21:1	20:1	21:1
1999	21:1	21:1	21:1
1998	21:1	20:1	21:1
1997	21:1	20:1	22:1
1996	21:1	21:1	22:1
1995	22:1	20:1	21:1
1994	21:1	20:1	21:1
1993	21:1	21:1	21:1
1992	19:1	21:1	20:1
1991	24:1	21:1	23:1
1990	20:1	21:1	20:1

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American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (2004-2007)
Year	West Mercer Elementary School	Washington
2007	1%	4%
2006	1%	3%
2005	1%	3%
2004	1%	3%

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Asian

33%

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Asian Student Percentage Comparison Over Years (1991-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	32%	9%	27%
2022	28%	9%	26%
2021	27%	8%	25%
2020	29%	8%	22%
2019	29%	8%	22%
2018	27%	8%	21%
2017	27%	8%	21%
2016	22%	8%	20%
2015	20%	8%	19%
2014	17%	7%	19%
2013	17%	8%	19%
2012	18%	7%	20%
2011	18%	7%	19%
2010	21%	10%	22%
2009	20%	10%	21%
2008	22%	9%	20%
2007	21%	8%	19%
2006	18%	8%	19%
2005	17%	8%	19%
2004	16%	8%	18%
2003	16%	8%	17%
2002	15%	8%	17%
2001	15%	7%	15%
2000	16%	7%	16%
1999	16%	7%	16%
1998	13%	7%	15%
1997	13%	7%	14%
1996	15%	7%	15%
1995	13%	6%	12%
1994	13%	6%	13%
1993	11%	6%	13%
1992	12%	6%	12%
1991	13%	6%	12%

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Hispanic

10%

26%

View Data

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

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Black

View Data

Black Student Percentage Comparison Over Years (1990-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	2%	5%	1%
2022	2%	5%	1%
2021	1%	5%	1%
2020	1%	5%	1%
2019	1%	5%	1%
2015	1%	4%	1%
2014	1%	5%	1%
2013	1%	5%	1%
2012	1%	5%	1%
2011	1%	5%	2%
2010	2%	6%	1%
2009	2%	5%	1%
2008	1%	6%	1%
2007	1%	6%	1%
2006	2%	6%	1%
2005	2%	6%	1%
2004	2%	6%	1%
2003	2%	6%	2%
2002	1%	5%	1%
2001	2%	5%	2%
2000	1%	5%	2%
1999	2%	5%	2%
1998	2%	5%	2%
1997	2%	5%	2%
1996	1%	4%	1%
1995	1%	5%	2%
1994	1%	4%	2%
1993	2%	4%	2%
1992	2%	4%	2%
1991	1%	4%	2%
1990	1%	4%	2%

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White

42%

48%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	43%	49%	51%
2022	43%	50%	53%
2021	48%	51%	57%
2020	48%	53%	61%
2019	48%	53%	61%
2018	53%	55%	66%
2017	53%	55%	66%
2016	62%	56%	68%
2015	64%	57%	69%
2014	68%	58%	70%
2013	70%	59%	71%
2012	73%	60%	72%
2011	75%	63%	74%
2010	74%	64%	74%
2009	75%	65%	75%
2008	75%	66%	77%
2007	75%	68%	78%
2006	77%	69%	78%
2005	79%	70%	79%
2004	80%	71%	79%
2003	80%	71%	79%
2002	83%	73%	81%
2001	82%	74%	82%
2000	82%	75%	81%
1999	81%	76%	81%
1998	83%	76%	82%
1997	83%	77%	82%
1996	83%	78%	83%
1995	84%	79%	85%
1994	84%	80%	84%
1993	86%	81%	84%
1992	86%	81%	85%
1991	86%	82%	85%

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Hawaiian

n/a

Two or more races

13%

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	14%	9%	14%
2022	17%	9%	13%
2021	16%	9%	12%
2020	15%	8%	11%
2019	15%	8%	11%
2018	13%	8%	8%
2017	13%	8%	8%
2016	12%	7%	8%
2015	11%	7%	7%
2014	10%	7%	6%
2013	8%	6%	5%

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All Ethnic Groups

0.69

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	0.69	0.68	0.65
2022	0.70	0.68	0.64
2021	0.67	0.67	0.60
2020	0.66	0.65	0.56
2019	0.66	0.65	0.56
2018	0.63	0.64	0.52
2017	0.63	0.64	0.52
2016	0.56	0.63	0.50
2015	0.54	0.62	0.49
2014	0.50	0.61	0.47
2013	0.48	0.61	0.46
2012	0.44	0.60	0.44
2011	0.41	0.58	0.42
2010	0.43	0.56	0.40
2009	0.40	0.55	0.39
2008	0.40	0.54	0.37
2007	0.39	0.51	0.36
2006	0.38	0.49	0.36
2005	0.35	0.49	0.35
2004	0.33	0.48	0.35
2003	0.34	0.47	0.35
2002	0.29	0.45	0.32
2001	0.31	0.44	0.31
2000	0.30	0.42	0.31
1999	0.32	0.40	0.31
1998	0.29	0.40	0.31
1997	0.30	0.39	0.30
1996	0.29	0.39	0.29
1995	0.28	0.36	0.27
1994	0.28	0.35	0.29
1993	0.24	0.34	0.28
1992	0.25	0.33	0.26
1991	0.25	0.32	0.25

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Eligible for

49%

View Data

Free Lunch Eligibility Comparison Over Years (2003-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	5%	41%	3%
2022	3%	36%	2%
2021	2%	35%	3%
2020	2%	35%	3%
2019	2%	35%	3%
2018	4%	37%	2%
2017	4%	37%	2%
2016	3%	38%	2%
2015	3%	39%	3%
2014	4%	39%	3%
2013	3%	38%	3%
2012	3%	37%	3%
2011	3%	33%	3%
2010	3%	33%	1%
2009	2%	29%	1%
2008	1%	28%	1%
2007	1%	28%	1%
2006	2%	29%	1%
2005	2%	27%	1%
2004	3%	27%	1%
2003	3%	26%	1%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2004-2023)
Year	West Mercer Elementary School	Washington	Mercer Island School District
2023	2%	8%	2%
2021	1%	7%	1%
2020	1%	8%	1%
2019	1%	8%	1%
2014	1%	7%	1%
2013	1%	7%	1%
2012	2%	7%	1%
2011	1%	7%	1%
2008	1%	9%	1%
2007	1%	9%	1%
2006	2%	8%	1%
2005	1%	9%	1%
2004	2%	9%	1%

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School Statewide Testing

School District Name

Mercer Island School District

Source: National Center for Education Statistics (NCES), WA Dept. of Education

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is West Mercer Elementary School's ranking?

West Mercer Elementary School is ranked #44 out of 2,088 schools, which ranks it among the top 5% of public schools in Washington.

What schools are West Mercer Elementary School often compared to?

West Mercer Elementary Schoolis often viewed alongside schools like Northwood Elementary School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

85% of students have achieved math proficiency (compared to the 41% WA state average), while 86% of students have achieved reading proficiency (compared to the 53% WA state average).

How many students attend West Mercer Elementary School?

410 students attend West Mercer Elementary School.

What is the racial composition of the student body?

42% of West Mercer Elementary School students are White, 33% of students are Asian, 13% of students are Two or more races, 10% of students are Hispanic, and 2% of students are Black.

What is the student-teacher ratio of West Mercer Elementary School?

West Mercer Elementary School has a student ration of 16:1, which is equal to the Washington state average of 16:1.

What grades does West Mercer Elementary School offer ?

West Mercer Elementary School offers enrollment in grades Kindergarten-5 (No virtual instruction).

What school district is West Mercer Elementary School part of?

West Mercer Elementary School is part of Mercer Island School District.