Can You Tell if These TV Show Settings Are Real or Fictional?

Some shows are very straightforward about where their story is set. "Gossip Girl," for example, was set in New York City, which was fairly obvious from the six seasons they filmed. Alternatively, Hawkins, Ind. from "Stranger Things" is not a real town you can go and visit, but it's easy to believe it is. Do you know if these TV show settings are real places or not?