Mercer Island, WA ZIP Codes

ZIP code, county, time zone and coordinates of Mercer Island, Washington

The ZIP code of Mercer Island, WA is 98040. Mercer Island has 2 ZIP codes: 98040, 98118. It is in King County.

Mailing address format for Mercer Island

John Smith
123 Main St
MERCER ISLAND WA 98040
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

All ZIP codes in Mercer Island

ZIP codePopulationArea
98040—6.4 sq miMain
98118—6.3 sq mi

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

Where is Mercer Island? Location, county and time zone

State
Washington
County
King County
GPS coordinates
47.56400, -122.23121
Time zone
America/Los AngelesPST · UTC-08:00
Population
25,748

Map of Mercer Island, WA 98040

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ZIP codes near Mercer Island

Mercer Island ZIP code: FAQ

What is the ZIP code for Mercer Island, WA?

The main ZIP code for Mercer Island, WA is 98040. All ZIP codes: 98040, 98118.

How many ZIP codes does Mercer Island have?

Mercer Island has 2 ZIP codes.

What county is Mercer Island, WA in?

Mercer Island is in King County, Washington.

What time zone is Mercer Island in?

Mercer Island is in the America/Los Angeles time zone (PST, UTC-08:00 right now).

What are the coordinates of Mercer Island?

Latitude 47.56400, longitude -122.23121.

Last updated: