In which county is ZIP code 99349 located?

ZIP 99349 is listed under Grant, WA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 99349: Mattawa, WA

ZIP: 99349

County: Grant

Coordinates: 46.73100, -119.77830

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Get a reliable snapshot of the Mattawa, WA postal area 99349. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Mattawa
ZIP Code	99349
County	Grant
State	WA
Latitude / Longitude	46.73100, -119.77830
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 99349 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 99349 is commonly represented around 46.73100, -119.77830. These coordinates help identify the general area within Grant, WA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 99349 for mail delivery and general location reference in Grant, WA.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Mattawa.

Related ZIP Codes (Nearby)

Explore other postal codes near Mattawa within WA.

Frequently Asked Questions

What is the primary city for ZIP code 99349?

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

In which county is 99349 located?

ZIP code 99349 is situated within Grant, WA.

What are the coordinates for 99349?

The approximate center point is 46.73100 (Latitude) and -119.77830 (Longitude).

Is ZIP code 99349 active?

This page lists ZIP 99349 as Listed based on the latest refresh date shown above.

Does ZIP 99349 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