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All state abbreviations

What state is WI?

WI = Wisconsin

WI is the official two-letter USPS postal abbreviation for Wisconsin. The capital is Madison, and Wisconsin is in the Midwest region. See the full Wisconsin profile for borders, nickname, symbols, and map practice.

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Quick facts

Abbreviation
WI
Capital
Madison
Region
Midwest
Nickname
The Badger State

Easy to confuse with

WA = Washington
Not WI
WV = West Virginia
Not WI
WY = Wyoming
Not WI

FAQ

What state is WI?

WI is Wisconsin.

Is WI Wisconsin?

Yes. WI is the USPS postal abbreviation for Wisconsin.

What is the capital of Wisconsin?

The capital of Wisconsin is Madison.

Which states are easy to confuse with WI?

Watch for codes like WA, WV, WY when you see WI.