Mercer Island, WA ZIP Codes, Coordinates & Counties
Mercer Island, Washington has 1 ZIP code in King county. The approximate center of Mercer Island is 47.566, -122.232. Mercer Island has about 138,128 known street addresses.
ZIP codes in Mercer Island, WA
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 98040 | King | 47.566 | -122.232 |
Counties Mercer Island spans
King
Most common streets in Mercer Island
Mercer, 80th, 72nd, 84th, 76th, 82nd, 92nd, 85th, 78th, 61st
Frequently asked questions
What ZIP codes are in Mercer Island, WA?
Mercer Island, Washington has 1 ZIP code, ranging from 98040 to 98040. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Mercer Island, WA in?
Mercer Island is in King county.
What are the latitude and longitude of Mercer Island, WA?
The approximate center of Mercer Island, Washington is latitude 47.566, longitude -122.232. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Mercer Island, WA have?
Mercer Island has 1 ZIP code.
How many addresses are in Mercer Island, WA?
Mercer Island, Washington has about 138,128 known street addresses in the sthan.io US address database.
What are the most common streets in Mercer Island, WA?
Some of the most common street names in Mercer Island are Mercer, 80th, 72nd, 84th, 76th, 82nd.
What cities are near Mercer Island, WA?
Cities near Mercer Island include Bellevue (4 mi), Medina (5 mi), Seattle (5 mi), Renton (7 mi), Kirkland (9 mi).
Cities near Mercer Island
Bellevue, WA (4 mi) Medina, WA (5 mi) Seattle, WA (5 mi) Renton, WA (7 mi) Kirkland, WA (9 mi) Sammamish, WA (9 mi) Issaquah, WA (11 mi) Redmond, WA (11 mi)
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View the API →Last updated: June 2026 · Data: sthan.io US address database