Should I claim gambling winnings from Nevada if I live in Ohio?

[KrisD15]

Yes, 

enter the gambling winnings in the Federal section of TurboTax. 

You can also enter your gambling losses, if you kept documentation, up to the amount of your winnings.

As a full-year resident of Ohio, you need to claim all the income you earned (or won) in 2024, even if it was earned (or won) in a different state. 

Nevada does not have state tax, so you only need to file for Ohio. 

Allocate all your income to the Ohio state return. 

[Hal_Al]

You report all your income on your resident state return, including the income sourced in the other state. Your home state calculates tax on all your income, but gives you a credit, or partial credit, for tax you paid to the other state.

When you get money in a state without an income tax (e.g. Nevada), there will be no credit, since there was no NV  tax. In other words, getting money sourced in state without an income tax does not get you out of paying state tax on that income, to your home state.