98040   Zip Code Mercer Island King WA United States

City Mercer Island
County King
State Washington
Latitude 47.56611
Longitude -122.232
Population 25,307
Density 3966.06 people per square mile
Time Zone America/Los Angeles
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
Download the data

Household Income

Median household: $219,069
Median individual: $89,076

Race

Mode: 63.6% White

Gender

 52.4% female 

Rent

  $2502 / month  

Median house value: $1,989,868.0

Age

Median: 46.4 years old

Education

With at least college degree: 81.5%
With STEM degree: 60.1%

Marital Status

 62.8% married 

Never married: 24.2%

Labor Force Participation

 60.3% working 

Unemployed: 3.0%

Average Family Size

 3.01 people 

Commute Time

 23.6 minutes 

Health Care

 1.2% uninsured 

Poverty

 3.8%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

Home (Maps) | Database License | Privacy | Database Releases | Database Order Lookup | Resources | Contact | FAQs
SimpleMaps.com is a product of Pareto Software, LLC. © 2010-2026.