25. Miami Beach, Florida

One of three cities in Miami-Dade County that appear on this list, Miami Beach’s high real estate prices make it difficult to make ends meet, as the average annual household income in the city is just over $53,000. It is also a crime hotspot, with rates nearly three times the national figures. Despite these indices, Miami Beach’s residents are well-educated, with nearly half of its 92,000 residents holding at least a bachelor’s degree.