California Postal Codes (Zip Codes): Understanding the 5-Digit Format (99999)

postal zip codes

California Postal Codes (Zip Codes)

Postal Code California – In the United States, postal codes are known as zip codes. California zip codes are five-digit codes with the format 99999. They are used by the United States Postal Service (USPS) to facilitate the sorting and delivery of mail.

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