Vic, The style guide reads
As established on the Name Fields page, a guiding principle is to "use their conventions instead of ours."
Applied to locations, this means using place names in native languages and using the names that people at the time used, even if they now no longer exist.
and Use the full, written out place name for counties, states, provinces, départements, etc. Examples: Rhode Island, not RI; New Brunswick, not NB; Hampshire, not Hants; Seine-et-Marne, not S-M. Abbreviations of country names is acceptable as long as the abbreviation is standard and is recognizable.
When I was younger my location would have been Chardon, Ohio. That is the way I would have written it. The reality is I was in Chardon Township, Geauga County, Ohio and everyday we said the pledge in school and said our country as United States of America. It is my feeling that we should be as specific as possible when naming locations so that others can find them later. Yes according to the style Guide USA is acceptable, but that is not the name I used at the time.
There is a city of Chardon in Geauga County as well as Chardon Township but while the City of Chardon is in part in Chardon Township not all of the township is inside the city. We also never refer to the county as Geauga but rather Geauga County so in that case the word county should be included.