ZIP code · Mercer Island · Washington · United States

ZIP code 98040 — Mercer Island

Name: Mercer Island (98040)
Address: Washington, 98040, US

ZIP code 98040 serves Mercer Island, Washington.

Postal code: 98040
Single source Value from one source, not cross-checked.
City: Mercer Island
County: King
State: Washington
Country: United States
Coordinates: 47.5603, -122.2281 — precision precise (locality)
View on OpenStreetMap

Nearby localities

98118Seattle · 4.1 km
98006Bellevue · 5.5 km
98009Bellevue · 5.9 km
98015Bellevue · 5.9 km
98144Seattle · 6.1 km
98004Bellevue · 6.3 km
98108Seattle · 6.7 km
98056Renton · 6.8 km
98039Medina · 7.4 km
98178Seattle · 7.6 km

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page