In which county is ZIP code 98178 located?

ZIP 98178 is listed under King County, WA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 98178: Seattle, WA

ZIP: 98178

County: King County

Coordinates: 47.49240, -122.23590

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Get a reliable snapshot of the Seattle, WA postal area 98178. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Seattle
ZIP Code	98178
County	King County
State	WA
Latitude / Longitude	47.49240, -122.23590
ZIP Type	Standard
Time Zone	Pacific Time (PT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 98178 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 98178 is commonly represented around 47.49240, -122.23590. These coordinates help identify the general area within King County, WA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 98178 for mail delivery and general location reference in King County, WA.

Some addresses near Seattle may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Seattle within WA.

Frequently Asked Questions

What is the primary city for ZIP code 98178?

The primary city for this ZIP code is Seattle, located in WA.

In which county is 98178 located?

ZIP code 98178 is situated within King County, WA.

What are the coordinates for 98178?

The approximate center point is 47.49240 (Latitude) and -122.23590 (Longitude).

Is ZIP code 98178 active?

This page lists ZIP 98178 as Listed based on the latest refresh date shown above.

Does ZIP 98178 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08