What state is OH?

OH = Ohio

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

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Quick facts

Abbreviation

Capital

Columbus

Region

Midwest

Nickname

The Buckeye State

Easy to confuse with

FAQ

What state is OH?

OH is Ohio.

Is OH Ohio?

Yes. OH is the USPS postal abbreviation for Ohio.

What is the capital of Ohio?

The capital of Ohio is Columbus.

Which states are easy to confuse with OH?

Watch for codes like OK, OR, IN, IA when you see OH.