United States › Washington › Mercer Island CITY · 2010 ACS
Mercer Island Washington · 22,699 residents · 6.38 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS 2024 ACS
The short version
Mercer Island is a city of 22,699 people in Washington. That is roughly 111% ahead of the Washington median. This is an unusually credentialed place: 76% of adults have a four-year degree. The typical home is worth $895,800, having risen by half since 2000. The median household earns $120,994, about 130% above the national median. The median age is 46.0, about 9 years above the US median.
At a glance
Wealthier
above the US median
US median: $52,703
Older
median age 46.0
US median: 37.2
More educated
76% hold a bachelor's degree
US average: 28%
Less affordable
home values up 29%, inflation adjusted
US median home: $225,659
Section 01
Population & growth from 44.3 in 2000
US average: 37.2
Population, 1990 – 2024
20K 22K 23K 25K 26K 1990 2000 2010 2020 2024 Mercer Island Age distribution, 2010
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Section 02
Income & economy $120,994
+4%inflation adjusted, since 2000
from $91,904 in 2000
US average: $52,703
from $53,799 in 2000
US average: $27,286
Households earning $100K+
from 67.9% in 2009
US average: 33.3%
from 3.2% in 2000
US average: 13.8%
Workforce by industry, 2010
Public administration 8.5%
Arts, entertainment, food 4.7%
Professional, scientific, technical 3%
Transportation & warehousing 2.6%
Education & health services 0.5%
Agriculture, forestry, fishing 0.5%
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$895,800
+29%inflation adjusted, since 2000
from $548,300 in 2000
US average: $225,659
$1,421
+11%inflation adjusted, since 2000
from $1,014 in 2000
US average: $853
from 80.5% in 2000
27.6% rent
from 3.9% in 2009
US average: 12.1%
from 2.47 people in 2009
US average: 2.60
from 26.1% in 2009
US average: 30.9%
from 42.2% in 2009
US average: 46.8%
from 7.5 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 82.8%(18,249)
Hispanic / Latino 1.9%(410)
2010
White, non-Hispanic 76%(17,255)
Hispanic / Latino 2.8%(634)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 33 more ancestry groups with data from 69.1% in 2000
US average: 27.9%
High school or higher
from 97.7% in 2000
US average: 84.9%
from 31.6% in 2000
US average: 10.2%
Section 06
Commute & transportation from 13.4 min in 2000
US average: 25.2
from 73.2% in 2009
US average: 76.2%
from 6.6% in 2009
US average: 10.4%
from 5.8% in 2009
US average: 4.7%
from 10.8% in 2009
US average: 4.1%
from 1.9% in 2009
US average: 2.8%
from 0.8% in 2009
US average: 0.5%
from 4.1% in 2009
US average: 8.7%
Section 07
Work & employment from 10.6% in 2009
US average: 12.9%
from 71.4% in 2009
US average: 35.2%
Section 08
People & community from 15.6% in 2009
US average: 12.8%
from 11.4% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 26.5%(2,697)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 3.0% in 2013
US average: 8.4%
from 69.3% in 2020
US average: 54.8%
Direct-purchase
from 23.4% in 2020
US average: 13.8%
from 19.6% in 2020
US average: 18.4%
from 5.4% in 2020
US average: 20.9%
VA health care
from 0.5% in 2020
US average: 2.2%
Any private
from 89.4% in 2020
US average: 67.1%
Any public
from 23.6% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 13.4%(123)
Gulf War (1990s) 24.5%(224)
Share of the 915 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Mercer Island Head to head
Compare Mercer Island to nearby cities MERCER ISLAND VS
Newcastle
Income $160,278 +32%
Home value $1,205,600 +35%
Population 13,128 −48%
SEE FULL COMPARISON →
MERCER ISLAND VS
Bellevue
Income $165,576 +37%
Home value $1,340,300 +50%
Population 154,193 +507%
SEE FULL COMPARISON →
MERCER ISLAND VS
Bryn Mawr-Skyway
Income $90,969 −25%
Home value $655,200 −27%
Population 17,638 −31%
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MERCER ISLAND VS
Renton
Income $100,432 −17%
Home value $672,600 −25%
Population 104,975 +313%
SEE FULL COMPARISON →
Frequently asked
How many people live in Mercer Island, Washington? Mercer Island, Washington has about 22,699 residents according to the 2010 American Community Survey.
What is the median household income in Mercer Island, Washington? The typical household in Mercer Island, Washington earns about $120,994 a year. Half of households make more than that, and half make less.
Is Mercer Island, Washington expensive? In Mercer Island, Washington, the median home is worth about $895,800, and the typical rent is about $1,421 a month.
How educated are people in Mercer Island, Washington? About 76.3% of adults age 25 and over in Mercer Island, Washington hold a bachelor's degree or higher.
What is the poverty rate in Mercer Island, Washington? About 2.7% of people in Mercer Island, Washington live below the federal poverty line.
Has Mercer Island, Washington grown since 1990? Yes, Mercer Island, Washington has grown since 1990. The population has added about 1,883 residents, a change of about 9 percent over that period.
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