Mailbox Map › United States › Mercer Island › Mercer Island Post Office
Post office · USPS
Mercer Island Post Office, Mercer Island
Mercer Island Post Office at 3040 78th Avenue SE — opening hours Mo-Fr 08:30-17:00; Sa 10:00-14:00.
Open on the map Directions OpenStreetMap
| Address | 3040 78th Avenue SE |
|---|---|
| Opening hours | Mo-Fr 08:30-17:00; Sa 10:00-14:00 |
| Area | Mercer Island, Washington |
| Coordinates | 47.58243, -122.23309 |
| Time zone | America/Los_Angeles |
Nearby
- Blue box in Mercer Island 78 ft
- Blue box in Mercer Island 90 ft
- Blue box in Mercer Island 1.2 mi · Mon-Sat 12 PM
Mapped by the OpenStreetMap community, last checked 2026-06-11. Spotted a box that's gone? Fix it on OpenStreetMap and this page follows within a month.