Efiling is not available for 2019 tax returns through TurboTax. You need to print the return, sign it, and mail it.
When you print the return, there will be a coversheet that has directions, a list of any documents to send with the return, and the address to mail it. Once again, do not forget to sign it.
When I try to pull up my 2019 return it only showed the Federal return, I need my state return.
When viewing the PDF of the 2019 tax return, scroll down and the state return will be shown directly below all the federal forms, schedules and worksheets.