I have 2 different numbers in box 18 which do i put

[Carl]

Assuming you are referring to a W-2, you enter each line separately in the program for boxes 18-20 of your W-2.

[MonikaK1]

Assuming you are referring to Box 18 of your Form W-2, you may have wages that are taxable by more than one locality (such as a city or school district). You can add another line for Boxes 18 through 20 by clicking the "+Add another locality" button that appears below Boxes 18 through 20.

See this TurboTax tips article for more information about Form W-2.

If you need to file in more than one state, you will need the state download of software for each state. 

If you are using TurboTax Online, each state download you need costs additional if you are using Deluxe or higher. One free state is included in the Free Edition. 

You can go here https://turbotax.intuit.com/personal-taxes/online/ and click on State Additional under the price of each version and it will show you current pricing (subject to change) for each state download.