Format guide
California address and ZIP format
California uses the two-letter state abbreviation CA. Put the street number and street name on the first line; put apartment, suite, or unit information on a second line when it exists. City, CA, and the five-digit ZIP code are usually kept together.
Postal codes
California ZIP codes are usually five digits; some mailing systems also ask for ZIP+4. In test cases, preserve spacing between the state abbreviation and ZIP and check line wrapping for long city names and unit numbers.
How to use test data
In development you can use these samples to check field length, line breaks, international characters, and responsive layouts. For payment, identity, logistics, or compliance flows, use official sandbox data from your provider—do not submit these samples to live systems.