There is a Springfield in every state.
towns?
There are several US cities named 'Bagdad.'
Nope.
No there arent
Frandenstein, Missouri
lydia
PhoeniX, Arizona
There is a huge list of such cities, any city that was and is in another country
Grad is a Slavic term meaning town. Upon my research, I haven't found any US cities ending in -grad. This may be because the US does not have a significant Slavic culture.
There are no cities, but there is an unincorporated community named Zoe, in Lee County, Kentucky.
Upland, CA
Yes, Justice, IL.
There are no cities in the US that are a state. There is one city that isn't IN any state, and that is Washington D.C.