Zip Area Code

Mercer Island, Washington

Mercer Island, Washington, in King County, has ZIP code 98040 and area code 425.

ZIP code
98040
Area code
425
Time zone
Pacific Time
Coordinates
47.5603, -122.2281

ZIP codes in Mercer Island

ZIP codePost officeCountyArea codes
98040Mercer IslandKing County425

Area code for Mercer Island

  • Area code 425

    In service since April 27, 1997. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Time zone

Mercer Island is in the Pacific Time zone.

Towns near Mercer Island