In which county is ZIP code 99121 located?

ZIP 99121 is listed under Ferry, WA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 99121: Danville, WA

ZIP: 99121

County: Ferry

Coordinates: 48.97250, -118.48840

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Get a reliable snapshot of the Danville, WA postal area 99121. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Danville
ZIP Code	99121
County	Ferry
State	WA
Latitude / Longitude	48.97250, -118.48840
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 99121 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 99121 is approximately 48.97250 (latitude) and -118.48840 (longitude). This location sits within Ferry, contributing to regional planning across WA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 99121 for mail delivery and general location reference in Ferry, WA.

This ZIP may extend beyond the city core into nearby communities within Ferry.

Related ZIP Codes (Nearby)

Explore other postal codes near Danville within WA.

Frequently Asked Questions

What is the primary city for ZIP code 99121?

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

In which county is 99121 located?

ZIP code 99121 is situated within Ferry, WA.

What are the coordinates for 99121?

The approximate center point is 48.97250 (Latitude) and -118.48840 (Longitude).

Is ZIP code 99121 active?

This page lists ZIP 99121 as Listed based on the latest refresh date shown above.

Does ZIP 99121 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