In which county is ZIP code 99363 located?

ZIP 99363 is listed under Walla Walla, WA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 99363: Wallula, WA

ZIP: 99363

County: Walla Walla

Coordinates: 46.08460, -118.90610

ZIP Type: Standard

Time Zone: Pacific Time (PT)

This profile provides an in-depth look at ZIP code 99363, serving Wallula in WA. It lies in Walla Walla and supports delivery, planning, and address verification.

Primary City	Wallula
ZIP Code	99363
County	Walla Walla
State	WA
Latitude / Longitude	46.08460, -118.90610
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 99363 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 99363 are listed as 46.08460 / -118.90610, useful for GPS and service checks in and around Wallula, WA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 99363 for mail delivery and general location reference in Walla Walla, WA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Wallula within WA.

Frequently Asked Questions

What is the primary city for ZIP code 99363?

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

In which county is 99363 located?

ZIP code 99363 is situated within Walla Walla, WA.

What are the coordinates for 99363?

The approximate center point is 46.08460 (Latitude) and -118.90610 (Longitude).

Is ZIP code 99363 active?

This page lists ZIP 99363 as Listed based on the latest refresh date shown above.

Does ZIP 99363 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