US United States Major Regions Postal Code Details
๐๏ธ Santa Clara ยท California
95191
A M O R C
95002
Alviso
94040
Blossom Valley
95194
California Water Service
95011
Campbell
95013
Coyote
95014
Cupertino
94303
East Palo Alto
95021
Gilroy
95026
Holy City
95193
I B M
94023
Los Altos
94024
Los Altos Hills
95031
Los Gatos
95036
Milpitas
94035
Moffett Field
94035
Moffett Field Nas
95030
Monte Sereno
95014
Monte Vista
95038
Morgan Hill
95140
Mount Hamilton
94041
Mountain View
95042
New Almaden
94088
Onizuka AFB
94303
Palo Alto
95014
Permanente
95044
Redwood Estates
95134
San Jose
95190
San Jose Mercury News
95192
San Jose State University
95196
San Jose Water Company
95046
San Martin
95053
Santa Clara
95053
Santa Clara University
95071
Saratoga
94309
Stanford
94087
Sunnyvale
๐ฎUS United States Regional Postal Code FAQ & Postal Regulations
๐ฎ What is the format of a US ZIP code?
Standard format is 5 digits (e.g., 10001). Extended format is ZIP+4 (9 digits like 10001-1234) with a hyphen.
๐ How to find the ZIP code for an address?
Use the USPS ZIP Code Lookup tool by entering the full address on the official USPS website.
โ ๏ธ What happens if I use a wrong ZIP code?
Mail may be delayed, returned, or lost. For important documents, use USPS tracking and verify the ZIP code.
๐ Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
๐ฆ Is a ZIP code required for international mail to the US?
Absolutely. Always include the US ZIP code at the end of the address (e.g., New York, NY 10001 USA).