What state is it? Some states like GA, WV, AL, CO can take a long time, even weeks. But there are some things you should check.
If you efiled the state return, use the tool below to be sure the state return was successfully efiled and accepted:
https://shop.turbotax.intuit.com/efile/efile_status_lookup.jsp
If that confirms it was accepted, or if you mailed the state return, then here's how to check the status of a state refund.
TIP:
While you are at the state tax website, see if they have a notice or
FAQ on how long it usually takes to get a refund in your state and how
long to wait before calling them.
FAQ: How do I track my state refund?
https://ttlc.intuit.com/replies/3300211
