or have their been? For example, the most prominent one is the United States of America. And everyone knows about Mexico's formal name in Spanish, "Estados Unidos Mexicanos", which in English also includes the phrase "United States". I have run across a couple of other countries at least which either do have, or did have the phrase "United States" in their formal title, at least when this formal name is translated into English (I came up with a count of 6, but I have not verified this number).
At the moment how many places named "United States" are there, and what are they? How many places were named "United States" but are no longer?