In which county is ZIP code 94999 located?

ZIP 94999 is listed under Sonoma, CA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 94999: Petaluma, CA

ZIP: 94999

County: Sonoma

Coordinates: 38.26750, -122.65810

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Get a reliable snapshot of the Petaluma, CA postal area 94999. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Petaluma
ZIP Code	94999
County	Sonoma
State	CA
Latitude / Longitude	38.26750, -122.65810
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 94999 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 94999 are listed as 38.26750 / -122.65810, useful for GPS and service checks in and around Petaluma, CA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 94999 for mail delivery and general location reference in Sonoma, CA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Petaluma within CA.

Frequently Asked Questions

What is the primary city for ZIP code 94999?

The primary city for this ZIP code is Petaluma, located in CA.

In which county is 94999 located?

ZIP code 94999 is situated within Sonoma, CA.

What are the coordinates for 94999?

The approximate center point is 38.26750 (Latitude) and -122.65810 (Longitude).

Is ZIP code 94999 active?

This page lists ZIP 94999 as Listed based on the latest refresh date shown above.

Does ZIP 94999 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