Correct mailing address punctuation

The correct punctuation for a mailing address in the United States typically includes the following:

• The city and state should be separated by a comma (,).
• The state should be abbreviated (e.g. "CA" for California, not "California").
• The zip code should be separated from the city and state by a space.
• The country should be included if the address is being sent internationally.

Here is an example of a correctly punctuated mailing address:

John Doe 123 Main Street Anytown, CA 12345 USA

Or, for an international address:

John Doe 123 Main Street Anytown, CA 12345 United Kingdom

Note that the punctuation may vary slightly depending on the country or region. For example, in Canada, the province or territory is typically included after the city, and the country is not included unless the address is being sent internationally.

Here are some additional tips for correctly punctuating a mailing address:

• Use a comma to separate the city and state.
• Use a space to separate the state and zip code.
• Use a space to separate the zip code and country (if applicable).
• Avoid using punctuation marks such as periods, semicolons, or colons in the mailing address.
• Make sure to include the correct zip code and country (if applicable) to ensure that the mail is delivered correctly.

It's also a good idea to check with the United States Postal Service (USPS) or the postal service of the country you are sending to for specific guidelines on mailing addresses and punctuation.