Patuxent River Naval Air Station, Maryland

The claim: 7,900

What it really is: Naval Air Station Patuxent River is a large Navy base situated on a peninsula at the mouth of the the Patuxent River and the Chesapeake Bay.

While the base does have many buildings on it, none of them appear to be the type one would find on a prison camp. Considering this, and the fact that the base has civilian employees, makes this an unlikely location of a prison camp.