Google maps loves to confuse my house, "#X Y Ave", with a different house several miles away, "#X Y Ave South". It doesn't matter whether you enter the address correctly; Google will sometimes "correct" you over to the other one. My own sister ended up at the wrong house once, after following her phone's directions!
USPS knows what they are doing, but packages delivered by other services sometimes just don't show up. Delivery drivers are constantly confused; we have made a habit of putting long instructions in the order notes about the actual location. Sometimes this even works.