Understanding AP style abbreviations for states is essential for any professional writer, journalist, or content creator aiming for polished and consistent communication. The Associated Press Stylebook serves as the definitive guide for grammar, punctuation, and journalistic standards, and its rules for state abbreviations are clear, specific, and designed for readability. Following these conventions ensures your work looks authoritative and is taken seriously by editors and readers alike.
Why AP Style Matters for State Abbreviations
Unlike the full addresses used in the United States Postal Service (USPS), which use two-letter codes, AP style prioritizes clarity and flow within the text of a story. The goal is to avoid disruptive strings of capital letters while still providing immediate geographic context. For instance, writing "The governor of Texas signed the bill" is perfectly acceptable in most text, but for space or repetition concerns, "The governor of Texas signed the bill for Austin" becomes "The governor of Texas signed the bill for Austin, TX." This balance between prose readability and location specificity is the core purpose of the AP guidelines.
The General Rule for Text
In the main text of a story, you should always spell out the names of the 48 states that are contiguous, or connected, to the mainland. This includes states like California, Florida, and Illinois. You should only use an abbreviation when the state name is used in a direct address, in a city name within a story where space is a concern, or when it is part of a larger data set like a table or chart. Overusing abbreviations in narrative text can make your writing feel choppy and difficult to read.
Exceptions for Capitals and Full Names
There are specific scenarios where you must use the full state name, even if an abbreviation exists. When listing a state’s name in a formal title, such as the governor or senator, you should spell it out. For example, "Senator Maria Garcia of New Mexico" is correct. Furthermore, in a sentence where the state name is the subject or a key part of the verb, it is better to spell it out, as in "New Mexico is a high-desert landscape," rather than the awkward "NM is a high-desert landscape."
The Abbreviation List and Formatting
When an abbreviation is necessary, such as in a dateline, a side bar, or a tightly packed graphic, AP style provides a specific list. These abbreviations are almost always the two-letter postal codes but are treated differently in text. They are not capitalized in the middle of a sentence and are only used in conjunction with the name of a city. You should never use a state abbreviation to describe a state standing alone without a city reference.
