US state abbreviations
Type a state name or 2-letter code to look it up instantly. All 50 states plus DC and territories included.
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How to use US state abbreviations
Type your search
Enter what you are looking for in the search box. Matches appear as you type.
Read the answer
Results are looked up from data already loaded with the page, so there is no waiting and no request to a server.
Start over any time
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What this tool does
Either direction, one box
Type a state name or a two-letter code and it resolves to the other, so CA becomes California and Texas becomes TX.
Both the postal code and the traditional abbreviation
The two-letter postal code is what forms want, and the older abbreviation is shown alongside it for documents that still use one.
Includes all 50 states plus DC and territories
All 50 states are covered, plus DC and the territories, which are the entries most lists quietly leave out.
Results as you type
The list narrows with every keystroke rather than waiting for a search button.
Runs fully in your browser with no upload and no sign-up
The whole table is held in the page, so nothing you type is uploaded and it works with no connection.
Frequently asked questions
Are these the official USPS abbreviations?
Yes. The two-letter codes used here are the official United States Postal Service (USPS) abbreviations, the same ones used in mailing addresses and standardised data entry across the US.
What is the difference between a state abbreviation and a state code?
In everyday use they refer to the same thing - the two-letter USPS code. Historically some states had longer abbreviations (Calif., Mass., Tex.) but the two-letter postal codes became the standard in 1963 when the ZIP code system was introduced.
Are territories included?
Yes. Puerto Rico (PR), Guam (GU), US Virgin Islands (VI), American Samoa (AS), and the Northern Mariana Islands (MP) are all included, as is Washington D.C. (DC).
Is anything uploaded?
No. The entire lookup table is built into the page and runs offline in your browser.
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