Contra Costa postal codes — California, United States
1 locality and postal code in Contra Costa, within United States's three-level hierarchy.
Contra Costa postal codes
| Country | State | City | City | ZIP | Latitude | Longitude | Timezone |
|---|---|---|---|---|---|---|---|
| United States | California | Contra Costa | San Ramon | 94583 | 37.769917 | -121.980059 | America/Los_Angeles |
Complete dataset
60,000 rows available in United States
Get verified, enriched postal data scoped to your use case.
Get full database →About Contra Costa
Contra Costa is a city of California, United States.
How postal codes work in Contra Costa
United States uses a single national postal-code format, written as 99999. Five digits, numeric only. Codes in Contra Costa follow that format like everywhere else in the country, for example 94583 for San Ramon.
Every code listed here for Contra Costa begins with the prefix 94, which groups its delivery areas together within United States's national numbering.
Postal codes across United States, Contra Costa included, are issued and maintained by United States Postal Service (USPS).
Addressing format
Addresses in United States are written [House number] [Street name], [City] [Region] [Postal code], and an address in Contra Costa follows that same order:
What this dataset covers
This reference dataset lists 1 postal code for Contra Costa, each paired with its locality and, where the source provides them, coordinates and a time zone.
Need bulk or current data?
Every country is free to browse. For complete, current datasets across 247 countries — scoped to your use case — talk to our team.
Contra Costa postal codes — frequently asked questions
What postal codes does Contra Costa use?
Every postal code listed here for Contra Costa begins with the prefix 94.
What format are postal codes in Contra Costa?
They use United States's national 99999 format. Five digits, numeric only. 94583 is one code from Contra Costa.
Who issues postal codes in Contra Costa?
United States Postal Service (USPS) issues and maintains postal codes throughout United States, Contra Costa included.
How many postal codes are listed for Contra Costa?
This reference dataset contains 1 postal code for Contra Costa. That is the dataset's own count, not a claim about every code in use.
Which state is Contra Costa in?
Contra Costa is a city of California, United States.