20. Newark, New Jersey
The city has 280,139 inhabitants. Newark has a number of universities, the most famous of which is definitely Rutgers. The others include New Jersey Institute of Technology and Seton Hall University Law School. Newark made our list of dumbest cities in the US in 2018 due to its relatively low percentage of people with bachelor’s degrees (9.0%), high school graduates of 70.80% and amount of people holding a professional degree of 3.7%.

Pixabay/Public Domain