5 Most Polluted Cities in the U.S.

In this piece, we will take a look at the five most polluted cities in the U.S. For more cities, head on over to 30 Most Polluted Cities in the U.S.

5. San Antonio, Texas

Insider Monkey’s Score: 11

San Antonio is part of the San Antonio-New Braunfels metropolitan area with close to a million households surveyed and it ranks high in the number of people that reported mold in their houses. It is Texas’ second largest city in terms of population and houses 1.4 million people. San Antonio is also a tourism hub in the U.S., with millions of people visiting the city. It also has a presence of several Fortune 500 companies along with other important financial firms such as Wells Fargo and Citi Bank.