Where do I mail my return?

For federal return, it will depend on which state you live in and you can find the addresses here https://www.irs.gov/uac/where-to-file-paper-tax-returns-with-or-without-a-payment 

For state returns, you need to check your State Department of Revenue website to get the address you will need to mail your state return to. You can go here https://ttlc.intuit.com/questions/1901670 and select your state and it will take you to their contact page.