21. Paterson, New Jersey
With a population of 146,894 inhabitants, the city is serviced by a number of elementary and high schools, as well as the Passaic County Community College. The city is also the host to annual robotics competition at the said college, which is the leading competition of its kind in the entire state. However, despite all that, Paterson still made our list of dumbest cities in the US in 2018, with only 9.0% of the population having a bachelor degree and only 71.20% having high school education.
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