Do I have to pay each state Taxes, for DoorDash ?

This is for my Gig/ self-employed job  Doordash. I live in Delaware and typically do all my Doordash orders in Delaware. Also, I am single with no dependents.  I will have to pay taxes because I am going to make over $600 this year.  My question is, if I started taking orders in for example in  Pa, NJ, and MD, do I have to file separate taxes for each state or do I have to file in Delaware?