In the US it seems quite common to confuse Switzerland with Sweden. Visitors to the Zurich office kept remarking how that town was the prettiest town of all of Sweden and their host kept complimenting them on their good eye sight if they could see that from there.
But it is not just the Americans. It took me about a year to tell my bank I no longer lived in the Netherlands, but after I finally mailed them my change of address notice, I saw that they were now sending mail to the correct street address, but that they had specified Sweden as a country. The amazing thing is that the post delivered the mail just fine; they probably just go, oh another Zurich, Sweden. Just put it on the stack.
I wanted to ignore the thing, but my wife sent them an email pointing out their error. The bank told her that I should tell them since it was my account. I duly complied. I got a friendly reply pointing out where on the website I could download an address change form. I replied that I didn't want to change my address, I wanted the bank to fix their mistake. But the bank pointed out that they couldn't trust email. The fact that there is no Zurich in Sweden and that almost always if you send mail to Zurich in Sweden the post will deliver it in Zurich was something they didn't deny and they could see the ridiculousness of the situation. Now if I could only download, fill in, sign and send off the form. Needless to say my mail is still being sent to Sweden.