If you got a state or local tax refund in 2020, you should be receiving a Form 1099-G by mid-February, assuming your state still sends out paper forms.
In the meantime, please see the TurboTax Help article Where do I find last year's state/local refund so I can report it on this year's taxes? for guidance on how you might find this information.
A state refund may count as taxable income. Please see the TurboTax Help article Do I need to report the state or local refund I got last year? Is it taxable? for more information.