What Is the Abbreviation for Wisconsin?
The standard 2-letter abbreviation for Wisconsin is WI.
Wisconsin Abbreviation
Wisconsin is abbreviated WI. Older sources may use Wis., but the two-letter postal form WI is the modern standard for addresses, forms, databases, and current style guides.
Wisconsin Abbreviation for Mailing and Forms
Use WI for Wisconsin in mailing addresses, shipping labels, official forms, and database records.
In all of these contexts write WI in uppercase. The form WI. with a period is incorrect for postal use.
AP Style and Traditional Wisconsin Abbreviation
What Does WI Stand For?
Wisconsin's USPS abbreviation is WI.
WI has been Wisconsin's standard postal abbreviation since 1963. The older form Wis. still appears in older sources, but WI is the form used in current addresses and forms.
How to Write a Wisconsin Address
In a U.S. mailing address, write the city name, then WI in uppercase, then the five-digit ZIP Code. Never put a period after the abbreviation.
The same format applies in checkout forms, school worksheets, CRM systems, spreadsheets, shipping labels, and government databases — anywhere a two-letter state code is required.
Related Abbreviation Questions
These states share a first letter, region, or alphabetical position with Wisconsin and are commonly looked up alongside it.
FAQ
What is the abbreviation for Wisconsin?
The standard USPS abbreviation for Wisconsin is WI.
What is the postal abbreviation for Wisconsin?
WI is the two-letter postal abbreviation for Wisconsin. It is the form used in mailing addresses, shipping labels, forms, and databases.
How do you abbreviate Wisconsin?
Abbreviate Wisconsin as WI in current USPS, mailing, and database use.
What is the two-letter abbreviation for Wisconsin?
WI is the official two-letter abbreviation for Wisconsin.
What is the Wisconsin state code?
WI is the two-letter state code used for Wisconsin in mailing addresses, forms, spreadsheets, and databases.
Why is Wisconsin abbreviated WI?
Wisconsin's USPS abbreviation is WI.
What does WI stand for?
WI stands for Wisconsin in the USPS state abbreviation system.
What is the old abbreviation for Wisconsin?
Older editorial styles often wrote Wisconsin as Wis.. For mailing and database use, the modern standard is WI.
How do you write a Wisconsin mailing address?
Use the city name, then the two-letter postal code WI, then the ZIP Code. For example: Madison, WI 00000.
What state is WI?
WI is the postal abbreviation for Wisconsin, located in the Midwest region. The capital is Madison.