What Is the Abbreviation for Arkansas?
The standard abbreviation for Arkansas is AR. This page explains why Arkansas uses AR, how the code fits into the modern USPS system, what older printed abbreviations looked like, and which nearby or similar state codes people commonly confuse with it.
What Is the Abbreviation for Arkansas?
Arkansas's abbreviation is AR. You may also see Ark. in older writing, but AR is the form used in mailing addresses, forms, databases, and current style guides.
Use AR for Arkansas in postal addresses, shipping systems, official forms, and data entry.
Why Arkansas Uses AR
Arkansas uses the USPS abbreviation AR.
AR became the standard postal abbreviation for Arkansas in 1963. Older abbreviations such as Ark. still appear in older material, but AR is the form used in current addresses and forms.
Old Abbreviation for Arkansas
Before the USPS two-letter system became the mailing standard in 1963, printed reference books and newspapers often used longer abbreviations with punctuation. For Arkansas, that older style was usually Ark..
That older form still appears in historical texts, archival material, and some legacy style guides, but the modern postal and database standard is AR. If someone searches for old abbreviation for Arkansas, the practical answer is to recognize Ark. and use AR in current writing and addresses.
How to Write Arkansas in an Address
In standard American addressing, the state line uses the city name followed by the two-letter code and ZIP Code. The abbreviation stays uppercase and does not take periods.
That same format applies in checkout forms, school worksheets, CRM exports, spreadsheets, shipping labels, and government databases — anywhere a two-letter state code is required.
AR Compared With Similar State Codes
AR is commonly compared with AL, AK, and AZ because the A-state codes are easy to misread when entered quickly.
Related Abbreviation Questions
These states share a first letter, region, or alphabetical position with Arkansas and are commonly checked alongside it.
Capital, Region, and Context
Arkansas belongs to the South region. Its capital is Little Rock, and its postal code AR is used in addresses, forms, and databases throughout the country.
Arkansas entered the Union on June 15, 1836.
FAQ
What is the abbreviation for Arkansas?
The standard USPS abbreviation for Arkansas is AR.
What is the postal abbreviation for Arkansas?
AR is the two-letter postal abbreviation for Arkansas. It is the form used in mailing addresses, shipping labels, forms, and databases.
How do you abbreviate Arkansas?
Abbreviate Arkansas as AR in current USPS, mailing, and database use.
Why is Arkansas abbreviated AR?
Arkansas uses the USPS abbreviation AR.
What does AR stand for?
AR stands for Arkansas in the USPS state abbreviation system.
What is the old abbreviation for Arkansas?
Older editorial styles often wrote Arkansas as Ark.. For mailing and database use, the modern standard is AR.
How do you write a Arkansas mailing address?
Use the city name, then the two-letter postal code AR, then the ZIP Code. For example: Little Rock, AR 00000.
What state is AR?
AR is the postal abbreviation for Arkansas, located in the South region. The capital is Little Rock.
Test All 50 State Abbreviations
Now that you know AR stands for Arkansas, see how many of the other 49 you can get right. The M-states and I-states trip up most people.