Go to this USPS website and enter your address without the zip code. The search will give you the address and zip code recognized by the Post Office. Use the USPS address that is shown on the website for your tax return
As DoninGa suggests, go to the USPS' ZIP Code™ by Address page and enter your address, leaving out the zip code. If a recognized address is found, use that address in TurboTax.
Otherwise, simply select Continue on the Let's double-check your address screen, as displayed below.