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Neighborhood report

Mercer Island, WA

King CountyElev. 103 m
Population
25,282
Median home
$1,884,200
Disaster risk
Very High
Public schools
6
Sex offenders
0

Overview

About Mercer Island

With about 25,282 residents, Mercer Island is one of Washington's notable places. Mercer Island sits in King County. The median age is 45.8 and the median household income is $202,359. Homes carry a median value of $1,884,200, and about 66% of residents own where they live. White residents make up the largest share of the population (65.3%). Around 79% of adults hold a bachelor's degree or higher, and the typical commute runs about 25 minutes.

Source: U.S. Census Bureau, American Community Survey (5-year).

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Who lives here

Demographics

Population
25,282
Median age
45.8
Median household income
$202,359
Per-capita income
$120,120
Poverty rate
4.6%
High-school grad or higher
98.1%
Bachelor's degree or higher
78.8%
Unemployment
2.5%
Avg. commute
24.9 min
Work from home
35.7%
Residents by race & ethnicity
White65.3%
Hispanic or Latino2.3%
Black1.4%
Asian22.2%
Workforce by occupation
Management, business, science & arts72.7%
Sales & office18.4%
Service6.1%
Production, transportation & material moving1.8%
Natural resources, construction & maintenance1%

Source: U.S. Census Bureau, American Community Survey (5-year).

Housing

Property report

Median home value
$1,884,200
Median gross rent
$2,464/mo
Owner-occupied
66%
Median year built
1973
Households
9,893
Avg. household size
2.54

Area-level figures. Source: U.S. Census Bureau, ACS (5-year). Parcel-level records coming next.

Education

Schools

Schools: Above average

Mercer Island has 6 public schools — 4 elementary, 1 middle, 1 high.

Student proficiency · grade 8, 1 school
Reading82%
Math81%

% of students at or above proficient on state assessments.

Mercer Island High SchoolHighGrades 9–12
Islander Middle SchoolMiddleGrades 6–8
Island Park ElementaryElementary
Lakeridge Elementary SchoolElementary
Northwood Elementary SchoolElementaryGrades -1–5
West Mercer ElementaryElementary

Public schools + grade-8 proficiency. Source: U.S. Dept. of Education (NCES directory + EDFacts assessments), via Urban Institute.

Safety

Crime

violent crime82% below national
Mercer Island68
Washington365
United States386
↑ 127% higher than 2019
2019–2023
property crime40% below national
Mercer Island1,173
Washington2,941
United States1,952
↓ 17% lower than 2019
2019–2023

Rate per 100,000 residents/year, Mercer Island Police Department, 2023. Source: FBI UCR/NIBRS (Crime Data Explorer).

Environment

Environmental hazards

Toxic-release sites and regulated facilities in and around Mercer Island.

Data source being added: U.S. EPA — Toxics Release Inventory (public). We show real, sourced figures only — never estimates.

Risk

Natural disaster risk

Very High
Top hazards · King County
AvalancheVery High
EarthquakeVery High
Riverine floodingVery High
Heat waveRelatively High
Ice stormRelatively High
LandslideRelatively High

County-level natural-hazard risk. Source: FEMA National Risk Index.

Context

Neighborhood info

Mercer Island is in King County — see county-wide risk, demographics, and registry.

Mercer Island sits in King County. Elevation ~103 m.

Map of Mercer Island
Mercer Island, WA
Where Mercer Island is
SeattleSpokaneTacomaVancouverBellevueKentMercer Island
Historic places

2 on the National Register of Historic Places.

Lakeview SchoolKeewaydin Clubhouse
Notable people from Mercer Island
Mary WayteQuin SnyderKatie HallBlake MaloneBill HansonBen MahdaviMike Shore
People searches in Mercer Island
Michael Smith (4)John Smith (3)James Smith (3)David Smith (3)Robert Smith (3)Michael Johnson (3)John Johnson (3)James Johnson (3)Michael Williams (2)William Smith (2)David Johnson (2)Robert Johnson (2)John Williams (2)Michael Brown (2)Michael Jones (2)James Williams (2)David Williams (2)John Brown (2)Robert Williams (2)John Jones (2)William Johnson (2)Mary Smith (2)James Brown (2)James Jones (2)
Nearby cities
Bellevue (4 mi)Renton (6 mi)Seattle (7 mi)Burien (8 mi)Kirkland (9 mi)Sammamish (9 mi)

Common questions

Mercer Island — frequently asked

What is the population of Mercer Island, Washington?
Mercer Island has a population of about 25,282, according to the U.S. Census Bureau's American Community Survey (5-year).
What is the average home value in Mercer Island?
The median home value in Mercer Island is $1,884,200, and the median gross rent is $2,464/month (U.S. Census ACS).
Is Mercer Island safe? What is the crime rate?
Mercer Island Police Department reported a violent-crime rate of about 68 per 100,000 residents in 2023 — lower than the U.S. rate of 386. Source: FBI UCR/NIBRS.
What natural-disaster risks does Mercer Island face?
FEMA's National Risk Index rates King County as "Very High" overall, with top hazards including avalanche, earthquake, riverine flooding.
How many schools are in Mercer Island?
Mercer Island has 6 public schools (4 elementary, 1 middle, 1 high). Source: U.S. Dept. of Education, NCES.
How many registered sex offenders are in Mercer Island?
Public registry data lists 0 registered sex offenders in or near Mercer Island. This is neighborhood-safety information from the public state registry.
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