Developing the setting for my eBook

Hello: I'm looking for a creative mind to help me write a fictional setting for my eBook. I already have the basic idea but I need to further develop it with a brief history of how the place was created and what it is in the present time of the story. Very briefly, I am looking to create a setting representative of the United States but completely fictional with outrageous inequality of power between the people and the leaders (part of the history of the setting) and I'd like the leaders to live separate from the people and with them living in poverty and in constant surveillance by a officers of some sort. I'm thinking of it being rural (not in the 20th Century) and I'd like their to be unique names for the leaders, people, officers, and country or whatever is created as the setting. Thank you!