Megacities are the most creative and dynamic places on Earth. These massive population centers concentrate people and infrastructure in ways conduce to economic growth. Yet as we’ve too often seen, however, megacities suffer myriad problems from overcrowding and a lack of affordable housing to environmental degradation. Fortunately, mid-size cities in America have emerged as great alternatives. With a great many benefits and fewer downsides, these mid-size localities are attracting increasing numbers of young people hungry for opportunity. In this list, we profile 20 mid-sized US cities that offer great overall quality of life and appeal to hip and diverse populations. In no particular order, these are the top hippest mid-sized US cities!