I think San Juan should be a city we have to guess. It is part of the United States, and even though it is in a territory, I don't think it should be overlooked as a given answer. Not a political sentiment, more an academic one.
Territories are often left out on Jetpunk quizzes, the fact that the answer is still included gives it more attention than various territories in other quizzes.
Santa Fe
for all the others i had to put in before "san" or "santa", which is a bit confusing (especially if you started with "louis" (ok) then "jose" (ko))
moreover, if the rule is:
- saint --> auto fill
- san/santa --> to be put in
why on earth does "petersburg" alone not work?
maybe i'm getting something wrong (i took the quiz multiple times just to verify), or maybe you could align the answers
Santa Fe?