United States › Washington › Mercer Island CITY · 2000 CENSUS
Mercer Island Washington · 22,036 residents · 6.38 sq mi
Time machine
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The short version
Mercer Island is a city of 22,036 people in Washington. That is roughly 101% ahead of the Washington median. This is an unusually credentialed place: 69% of adults have a four-year degree. The typical home is worth $548,300, having risen by half since 1990. The median household earns $91,904, about 116% above the national median. The median age is 44.3, about 9 years above the US median.
At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 44.3
US median: 35.2
More educated
69% hold a bachelor's degree
US average: 24%
Less affordable
home values up 25%, inflation adjusted
US median home: $120,530
Section 01
Population & growth from 41.0 in 1990
US average: 35.2
Population, 1990 – 2024
20K 22K 23K 25K 26K 1990 2000 2010 2020 2024 Mercer Island Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $91,904
+13%inflation adjusted, since 1990
from $61,572 in 1990
US average: $42,589
from $31,438 in 1990
US average: $21,522
from 2.3% in 1990
US average: 12.4%
$548,300
+25%inflation adjusted, since 1990
from $332,500 in 1990
US average: $120,530
$1,014
+27%inflation adjusted, since 1990
from $607 in 1990
US average: $602
from 78.7% in 1990
19.5% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 90.5%(18,848)
Hispanic / Latino 1.3%(269)
2000
White, non-Hispanic 82.8%(18,249)
Hispanic / Latino 1.9%(410)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
+ 2 more hispanic origin groups with data Ancestry
+ 36 more ancestry groups with data from 60.3% in 1990
US average: 24.4%
High school or higher
from 96.8% in 1990
US average: 80.3%
from 24.0% in 1990
US average: 8.8%
Section 06
Commute & transportation from 24.6 min in 1990
US average: 17.6
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status
Men 15+
Never married 20.5%(1,698)
Women 15+
Never married 15.1%(1,382)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
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.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Mercer Island Head to head
Compare Mercer Island to nearby cities MERCER ISLAND VS
Newcastle
Income $160,278 +74%
Home value $1,205,600 +120%
Population 13,128 −48%
SEE FULL COMPARISON →
MERCER ISLAND VS
Bellevue
Income $165,576 +80%
Home value $1,340,300 +144%
Population 154,193 +507%
SEE FULL COMPARISON →
MERCER ISLAND VS
Bryn Mawr-Skyway
Income $90,969 −1%
Home value $655,200 +19%
Population 17,638 −31%
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MERCER ISLAND VS
Renton
Income $100,432 +9%
Home value $672,600 +23%
Population 104,975 +313%
SEE FULL COMPARISON →
Frequently asked
How many people live in Mercer Island, Washington? Mercer Island, Washington has about 22,036 residents according to the 2000 Census.
What is the median household income in Mercer Island, Washington? The typical household in Mercer Island, Washington earns about $91,904 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 $548,300, and the typical rent is about $1,014 a month.
How educated are people in Mercer Island, Washington? About 69.1% 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 3.2% 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 1,220 residents, a change of about 6 percent over that period.
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