Marketing: Editorial Guide
Remember that America is more than just the United States. A number of countries comprise North, Central, and South America. When you mean the United States of America, use
When a state name is used in
The student was born and raised in Erie, Pennsylvania.
When a state name is used as part of a mailing address, use the two-letter post office abbreviation.
Do not use the two-letter post office abbreviations in lists, tables, notes, bibliographies, or indexes. For the correct abbreviations to use in these cases, see the Chicago Manual.
Spell out when used as a noun; abbreviate when used as an adjective.
After their move, they spent a lot of time adjusting to the United States.
U.S. policy in Europe was the topic of discussion.
Use of Comma with State Names
Use a comma before and after a state name when it’s used with a town or city name in text.
We were already in Pittsburgh, Pennsylvania, by the time we discovered that we needed more fuel.