Seattle has has a cyberpunk feel but is mostly shazbots and is is a cowtown compared to New York, Chicago, San Francisco, and even Kansas City.
Anything other than those 5 cities in America isnt worth mentioning. I lived in Indy for a while, not really cyberpunk but if you're into crime and decay with a homely Midwestern feel that's you're city. Joliet too. Shitholes. Those are the only 7 cities I've ever lived in, the rest are probably worse. New York, Seattle, or KC are your best bets for gritty high tech low life