Mercer Island, WA
Demographics And Statistics

Demographics | Crime | Cost Of Living
Updated: 2025-10-25

Living In Mercer Island, Washington Summary

Life in Mercer Island research summary. HomeSnacks has been using Saturday Night Science to research the quality of life in Mercer Island over the past nine years using Census, FBI, Zillow, and other primary data sources. Based on the most recently available data, we found the following about life in Mercer Island:

  • The population in Mercer Island is 25,282.

  • The median home value in Mercer Island is $2,263,983.

  • The median income in Mercer Island is $202,359.

  • The cost of living in Mercer Island is 263 which is 2.6x higher than the national average.

  • The median rent in Mercer Island is $2,464.

  • The unemployment rate in Mercer Island is 2.5%.

  • The poverty rate in Mercer Island is 4.6%.

  • The average high in Mercer Island is 60.2° and the average low is 44.4°.

Mercer Island SnackAbility

10
Overall SnackAbility
Jobs
9.5/10
Housing
10
Affordability
6
Diversity
8.5
Safety
8.5
Amenities
9
Education
10
Commute
7

Mercer Island, WA Crime Report

Crime in Mercer Island summary. We use data from the FBI to determine the crime rates in Mercer Island. Key points include:

  • There were 312 total crimes in Mercer Island in the last reporting year.

  • The overall crime rate per 100,000 people in Mercer Island is 1,277.9 / 100k people.

  • The violent crime rate per 100,000 people in Mercer Island is 36.9 / 100k people.

  • The property crime rate per 100,000 people in Mercer Island is 1,241.0 / 100k people.

  • Overall, crime in Mercer Island is -39.70% below the national average.

312
Total Crimes
-39.70%
Below National Average

Crime In Mercer Island Comparison Table

Statistic Count
Raw
Mercer Island
/ 100k People
Washington
/ 100k People
National
/ 100k People
Total Crimes Per 100K 312 1,277.9 2,792.6 2,119.2
Violent Crime 9 36.9 326.1 359.0
Murder 0 0.0 3.8 5.0
Robbery 4 16.4 67.5 61.0
Aggravated Assault 4 16.4 217.0 256.0
Property Crime 303 1,241.0 2,466.5 1,760.0
Burglary 56 229.4 398.8 229.0
Larceny 226 925.6 1,634.2 1,272.0
Car Theft 21 86.0 433.5 259.0

Mercer Island, WA Cost Of Living

Cost of living in Mercer Island summary. We use data on the cost of living to determine how expensive it is to live in Mercer Island. Real estate prices drive most of the variance in cost of living around Washington. Key points include:

  • The cost of living in Mercer Island is 263 with 100 being average.

  • The cost of living in Mercer Island is 2.6x higher than the national average.

  • The median home value in Mercer Island is $2,263,983.

  • The median income in Mercer Island is $202,359.

263
Mercer Island's Overall Cost Of Living
2.6x
Higher Than The National Average

Cost Of Living In Mercer Island Comparison Table

Living Expense Mercer Island Washington National Average
Overall 263 118 100
Services 121 111 100
Groceries 115 112 100
Health 139 122 100
Housing 595 135 100
Transportation 130 124 100
Utilities 104 91 100

Mercer Island, WA Weather

  • The average high in Mercer Island is 60.2° and the average low is 44.4°.

  • There are 92.0 days of precipitation each year.

  • Expect an average of 36.9 inches of precipitation each year with 5.0 inches of snow.

StatMercer Island
Average Annual High60.2
Average Annual Low44.4
Annual Precipitation Days92.0
Average Annual Precipitation36.9
Average Annual Snowfall5.0
60.2°
Average High
92.0
Days of Rain

Mercer Island, WA Photos

Aerial Photo Of Mercer Islandc Washington
Source: Wikipedia User Dllu | CC BY-SA 4.0
I Bridge Across Lake Washington In Seattle
Source: Public Domain
The Former Luther Burbank School In Washingtonc Us
Source: Wikipedia User Steven Pavlov | CC BY-SA 3.0
Keewaydin Clubhouse
Source: Wikipedia User Joe Mabel | GFDL
Mercer Islandc Wa  Luther Burbank Park Floating Docks
Source: Wikipedia User Joe Mabel | GFDL
Mercer Islandc Wa  Luther Burbank School Dorm
Source: Wikipedia User Joe Mabel | GFDL

Rankings for Mercer Island in Washington

Locations Around Mercer Island

Map Of Mercer Island, WA

Best Places Around Mercer Island

1

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2

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3

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5

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6

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7

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8

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Population 6,976

9

East Port Orchard, WA
Population 5,581

10

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Population 15,017

Mercer Island Demographics And Statistics

Population over time in Mercer Island

The current population in Mercer Island is 25,282. The population has increased 13.0% from 2010.

Year Population % Change
2023 25,282 -0.7%
2022 25,464 -0.2%
2021 25,506 -1.2%
2020 25,820 0.6%
2019 25,675 0.7%
2018 25,492 2.9%
2017 24,768 1.2%
2016 24,467 1.4%
2015 24,120 2.0%
2014 23,636 1.4%
2013 23,301 1.7%
2012 22,922 1.5%
2011 22,592 1.0%
2010 22,376 -

Race / Ethnicity in Mercer Island

White
65.3% (16,503)
African American
1.4% (345)
American Indian
0.0% (7)
Asian
22.2% (5,609)
Hawaiian
0.0% (0)
Other
0.6% (162)
Two Or More
8.2% (2,068)
Hispanic
2.3% (588)

Mercer Island is:

  • 65.3% White with 16,503 White residents.

  • 1.4% African American with 345 African American residents.

  • 0.0% American Indian with 7 American Indian residents.

  • 22.2% Asian with 5,609 Asian residents.

  • 0.0% Hawaiian with 0 Hawaiian residents.

  • 0.6% Other with 162 Other residents.

  • 8.2% Two Or More with 2,068 Two Or More residents.

  • 2.3% Hispanic with 588 Hispanic residents.

Race Mercer Island WA USA
White 65.3% 64.3% 58.2%
African American 1.4% 3.8% 12.0%
American Indian 0.0% 0.8% 0.5%
Asian 22.2% 9.3% 5.7%
Hawaiian 0.0% 0.7% 0.2%
Other 0.6% 0.5% 0.5%
Two Or More 8.2% 6.5% 3.9%
Hispanic 2.3% 14.1% 19.0%

Gender in Mercer Island

Female
53.6% (13,539)
Male
46.4% (11,743)
  • Mercer Island is 53.6% female with 13,539 female residents.

  • Mercer Island is 46.4% male with 11,743 male residents.

Gender Mercer Island WA USA
Female 53.6% 49.6% 50.5%
Male 46.4% 50.4% 49.5%

Highest level of educational attainment in Mercer Island for adults over 25

  • 3.0% of adults in Mercer Island completed < 9th grade.

  • 0.0% of adults in Mercer Island completed 9-12th grade.

  • 5.0% of adults in Mercer Island completed high school / ged.

  • 8.0% of adults in Mercer Island completed some college.

  • 6.0% of adults in Mercer Island completed associate's degree.

  • 38.0% of adults in Mercer Island completed bachelor's degree.

  • 22.0% of adults in Mercer Island completed master's degree.

  • 11.0% of adults in Mercer Island completed professional degree.

  • 7.0% of adults in Mercer Island completed doctorate degree.

< 9th Grade
3.0% (758)
9-12th Grade
0.0% (0)
High School / GED
5.0% (1,264)
Some College
8.0% (2,022)
Associate's Degree
6.0% (1,516)
Bachelor's Degree
38.0% (9,607)
Master's Degree
22.0% (5,562)
Professional Degree
11.0% (2,781)
Doctorate Degree
7.0% (1,769)
Education Mercer Island WA USA
< 9th Grade 3.0% 3.0% 5.0%
9-12th Grade 0.0% 4.0% 6.0%
High School / GED 5.0% 22.0% 26.0%
Some College 8.0% 22.0% 19.0%
Associate's Degree 6.0% 10.0% 9.0%
Bachelor's Degree 38.0% 24.0% 21.0%
Master's Degree 22.0% 11.0% 10.0%
Professional Degree 11.0% 2.0% 2.0%
Doctorate Degree 7.0% 2.0% 2.0%

Household Income For Mercer Island, Washington

  • 2.5% of households in Mercer Island earn Less than $10,000.

  • 0.6% of households in Mercer Island earn $10,000 to $14,999.

  • 3.0% of households in Mercer Island earn $15,000 to $24,999.

  • 3.7% of households in Mercer Island earn $25,000 to $34,999.

  • 5.0% of households in Mercer Island earn $35,000 to $49,999.

  • 7.7% of households in Mercer Island earn $50,000 to $74,999.

  • 5.7% of households in Mercer Island earn $75,000 to $99,999.

  • 12.4% of households in Mercer Island earn $100,000 to $149,999.

  • 8.7% of households in Mercer Island earn $150,000 to $199,999.

  • 50.6% of households in Mercer Island earn $200,000 or more.

Less than $10,000
2.5% (63,888)
$10,000 to $14,999
0.6% (15,333)
$15,000 to $24,999
3.0% (76,410)
$25,000 to $34,999
3.7% (94,555)
$35,000 to $49,999
5.0% (127,521)
$50,000 to $74,999
7.7% (194,476)
$75,000 to $99,999
5.7% (143,877)
$100,000 to $149,999
12.4% (312,798)
$150,000 to $199,999
8.7% (220,287)
$200,000 or more
50.6% (1,279,049)
Income Mercer Island WA USA
Less than $10,000 2.5% 3.8% 4.9%
$10,000 to $14,999 0.6% 2.7% 3.6%
$15,000 to $24,999 3.0% 4.9% 6.6%
$25,000 to $34,999 3.7% 5.3% 6.8%
$35,000 to $49,999 5.0% 8.6% 10.4%
$50,000 to $74,999 7.7% 14.6% 15.7%
$75,000 to $99,999 5.7% 12.6% 12.7%
$100,000 to $149,999 12.4% 19.2% 17.4%
$150,000 to $199,999 8.7% 11.3% 9.3%
$200,000 or more 50.6% 17.2% 12.6%

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