A great many of these place names were named for the personal names of people, but it looks like it doesn’t matter in this context: even if you can argue one person’s name is based on another person’s name, if anyone can counter with a placename in-between it counts.
Quite a few towns are named after individuals, so it should not be surprising to find city names that are also names of people.
According to census records, there are people with the last names of various states: Delware, Florida, Georgia, Kansas, Maine, Oregon, Vermont, Virginia, Washington
And for countries, there are people with China, England, France, Ireland, Montana, Poland, or Scotland as last names.