The address is on the State Filing Instructions page when you printed out the tax return.
Sign onto your TurboTax online account - https://myturbotax.intuit.com/
Scroll down and click on Add a State. This will take you back to the 2019 online tax return.
Click on Tax Tools on the left side of the online program screen. Then click on Print Center. Then click on Print, save or preview this year's return.