Do I have to file state taxes, if I made $7000?

It depends. Many States require that you file a State tax return if you filed a Federal return and have taxable income, regardless of your anticipated refund amount. 

Here's a FAQ (click on see entire answer) with information about State Filing Requirements: https://ttlc.intuit.com/replies/4801660

Here's a FAQ (click on see entire answer) with information about Federal Filing Requirements: https://ttlc.intuit.com/replies/3302274

: Do I have to file state taxes, if I made 7000 in a year.

As ModestaL noted above, it depends. 

Most states have set minimum amounts of income which require you to file a state return.  Others require you to file if you filed a federal return. 

Please see the TurboTax Help article Do I need to file a state return? for guidance.  You can select your state revenue office to find more information.