Cicero has notoriety (more or less solely, I should admit, within the U.S.) for having a heavy amount of political corruption, including the heavy influence of organized crime.
Ditto West Palm Beach, FL, which, in my childhood, was the epitome of rich cities in the U.S. (or at least, that was the impression formed in my mind through various sources).
Coeur d’Alene, Idaho isn’t very large and has a reputation acquired from having been close to the Aryan Nations headquarters (they were actually in a suburb of Coeur d’Alene).
Colorado Springs, Colorado is the home of many of the religious right organizations. I’d say they have a very strong influence all over the United States.