Postal Code for Mercer Island, Washington
The postal code for Mercer Island, Washington, United States is 98040. With map location and coordinates.
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The postal code for Mercer Island, Washington, United States is 98040:
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| 98040 | Mercer Island | King | 47.56, -122.228 |
‹ All postal codes in Washington
Frequently asked questions
What is the postal code of Mercer Island?
The postal code of Mercer Island is 98040.
Why does Mercer Island have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.