Unfortunately it is not possible to file only your state return on
TurboTax, as it is designed to pull your state information from your
federal.
You may file your state return directly on your state's website if you chose.
Please see the FAQ's below on filing state only and directing you to your states website.
https://ttlc.intuit.com/replies/4232481
https://ttlc.intuit.com/replies/3302452
