20 Most Sprawling Cities in the US

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In this article, we will be taking a look at the 20 most sprawling cities in the US. You can also skip our detailed analysis on impact of urban sprawl in the US and directly head to the 5 Most Sprawling Cities in the US.

The Evolution and Impact of Urban Sprawl in the US: From Mid-20th Century Expansion to Modern Challenges

The growth of sprawling cities in the US has been a dominant trend since the mid-20th century, with significant acceleration occurring between 1950 and 2010. This period, often called the "age of sprawl," saw many compact, small- to mid-size cities transform into vast metropolitan areas. According to CNU.org, by 2017, the 25 largest sprawling cities in the US were home to 20.7 million people, anchoring metro regions with a total population of 53 million - approximately one-sixth of the US population. In 1950, only three sprawling cities (Houston, Dallas, and San Antonio) had populations exceeding 400,000. Today, six cities have over 1 million residents, with Houston topping 2.3 million.

Sprawling cities typically exhibit lower population densities compared to traditional urban centers, with an average density of around 2,750 people per square mile. These cities are often characterized by a Walk Score of 40, indicating they are very automobile-dependent. Furthermore, single-family detached housing makes up 56% of the total housing in these areas, a significant contrast to the 22% found in more traditional cities.

The expansion of sprawling cities has largely reshaped the American landscape, which impacts both the physical environment and daily life. As these cities grow, they have developed extensive road networks, leading to a heavy dependence on automobiles; only 6% of residents use walking, biking, or transit for commuting. This reliance results in combined housing and transportation costs averaging about 50% of median household income, compared to 40% in more traditional cities. Additionally, urban sprawl has led to the conversion of large tracts of undeveloped land for urban use. For instance, in the US, urban land area expanded from approximately 15 million acres in 1945 to 60 million acres in 2000.

Infrastructure Challenges and Business Opportunities in America's Expanding Sprawling Cities

America's sprawling cities face substantial infrastructure challenges as they expand. The reliance on personal vehicles leads to increased traffic congestion, with drivers spending an average of 54 hours annually in traffic, and higher infrastructure costs due to the need to maintain extensive road networks. Additionally, limited public transit options affect 55% of Americans who lack access to public transportation. Expanding urban areas also strain utility systems, with water infrastructure needing $472 billion in upgrades over the next 20 years and the electrical grid facing reliability issues that cost the U.S. economy $150 billion annually.