In which county is ZIP code 94591 located?

ZIP 94591 is listed under Solano County, CA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 94591: Vallejo, CA

ZIP: 94591

County: Solano County

Coordinates: 38.09850, -122.21240

ZIP Type: Standard

Time Zone: Pacific Time (PT)

Explore detailed information for ZIP code 94591 in Vallejo, CA. We include verified county details for Solano County plus key geographic references used for mapping and logistics.

Primary City	Vallejo
ZIP Code	94591
County	Solano County
State	CA
Latitude / Longitude	38.09850, -122.21240
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 94591 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 94591 are listed as 38.09850 / -122.21240, useful for GPS and service checks in and around Vallejo, CA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 94591 for mail delivery and general location reference in Solano County, CA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Vallejo within CA.

Frequently Asked Questions

What is the primary city for ZIP code 94591?

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

In which county is 94591 located?

ZIP code 94591 is situated within Solano County, CA.

What are the coordinates for 94591?

The approximate center point is 38.09850 (Latitude) and -122.21240 (Longitude).

Is ZIP code 94591 active?

This page lists ZIP 94591 as Listed based on the latest refresh date shown above.

Does ZIP 94591 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