Hello, I think i have found a possible state that centium city would be in and now think for a minute, remember the first episode that the Davenport's building has 110 Floors, and all I had to do is research a list of building that has 110 floors or more found on wikipedia page here at the link below:
en.wikipedia.org/wiki/List_of_buildings_with_100_floors_or_more#Completed_buildings
and sorry to break the news there are no completed buildings with an exact number of 110 floors, how ever, there is one completed build with 108 floors which is the Willis Tower(also Known as the Sears tower) and there is one uncompleted building that would have had 111 floors and the name of the uncompleted building would be this Waldorf-Astoria Hotel and Residence Tower, and now there is another uncompleted building rendering that would look similar to the Davenports building, but this build would have 150 floors not 110. and the building is Chicago Spire. So I would go with the first two but they are both in the city Chicago, Illinois. so Illinois is the State in which centium city is possibly located at.if it were a real city of course but it's just a theory.
What do you think.