O'Fallon, IL, United States

Relocating to O'Fallon, Illinois won't exactly be a breeze. With a population of 32,289, this city is the second largest in the Metro East region, but it comes with its fair share of drawbacks. The suburban sprawl and rapid growth over the past few decades have resulted in a persistent bureaucratic headache, as evidenced by the numerous additions and expansions needed at the local high school to accommodate the influx of residents. And while the median household income of $102,560 may seem enticing, the reality is that 4.2% of families here still live below the poverty line. So unless you're after a sleepy, cookie-cutter Midwestern existence with easy access to St. Louis, O'Fallon may not be the right fit.