The U.S. has become a nation of suburbs

In the West and elsewhere, suburban areas are growing as cities decline.

 
  • Albuquerque, New Mexico suburbs.

    Duncan Rawlinson/Flickr CC
  • Phoenix, Arizona suburbs.

  • Southern Oregon suburbs.

  • San Francisco, California suburbs.

  • Albuquerque, New Mexico suburbs.

  • Henderson, Nevada suburbs during Halloween.

  • San Diego, California suburbs.

  • Las Vegas, Nevada suburbs.

  • Eastern Washington suburbs.

  • Western Washington suburbs.

  • San Francisco, California suburbs.

This article is republished from  under a Creative Commons license. Read the .

Since 1970, than central cities. In 2010, suburbanites outnumbered city and rural dwellers combined for the first time. We Americans live in a suburban nation.

Despite several concerted efforts by city governments to lure residents, suburbanization continues largely unabated. show that suburbs of warm climate “Sun Belt” cities in the South and West continue to grow, while cities in the cold climate “Snow Belt” of the Midwest and Northeast decline.

Smaller metropolitan areas with fewer than 500,000 people have also grown, related to an improving economy and job creation in smaller urban centers. This ongoing shift toward the suburbs has significant environmental repercussions.

Since cities and suburbs are home for 8 of every 10 Americans, views of the country are often distorted. occurs within or between cities. Although rural areas have more than three times the miles of roadways as urban areas, more than two-thirds of the 3 trillion miles that vehicles travel each year in the U.S. are in urban and suburban areas.

Jobs, too, are overwhelmingly centered around cities. Less than 2 percent of the American labor force .

Many of my students are surprised that the land area occupied by cities is . However, they are correct in that cities have an outsized impact on the economy. In 2016, metropolitan areas contributed $16.8 trillion to the nation’s gross domestic product, .

With this economic activity comes a high use of natural resources and concentrated pollution production. Although density can be more efficient when it comes to energy use, the sheer number of urban dwellers means that cities, despite a small physical footprint, have .

Rising suburbanization undermines some of the energy efficiency gained by high density living in urban cores. Manhattan has than the suburbs of New York, thanks to factors like apartment living, high costs of car ownership and extensive public transit. Of course, not everyone can afford to live in Manhattan even if they want to. Low-density suburbs are an affordable alternative.

Even so, suburban life can look less desirable. As , elderly people may end up far from adequate public transit and unable or unwilling to drive. At my urban university, a mixed use retirement facility . In the U.S., there are more than 100 university-based retirement communities and .

The trend toward suburban life could soon come to an end. Millennials — the generation born between 1981 and 1997 — appear to prefer urban life. They are , especially large metropolitan areas, than older generations. The millennial population is growing fastest in metro areas in the Sun Belt and western states, and slowest in the Snow Belt. Topping the list of the are Colorado Springs, San Antonio, Denver and Orlando.

Will millennials as they marry, have children, recover from the shocks of the Great Recession and find affordable housing? The jury .

Whatever happens, it’s unlikely that people will start to move out of cities and suburbs and back into rural areas. Even though increased connectivity and the internet of things will make remote work more possible than before, businesses will continue to concentrate in urban cores, because they profit from . (Futurists once thought the telephone would make crowded cities unnecessary.)

I believe that it’s likely the U.S. will remain a nation of suburbs for some time to come. That will pose a continuing environmental challenge. But it will also bring a new set of opportunities for millennials, who are predicted to overtake baby boomers as the largest generation in the country. How will that generation remake the suburbs to suit their needs and desires without exacerbating current environmental challenges? The answer has profound implications for the nature of cities and urban life in the U.S.The Conversation

 is a dean and professor of sustainability at .

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