4. Chicago, Illinois

Percentage: 18.6% of respondents thought Chicago had the rudest inhabitants.

According to the hometown newspaper, Chicago has been a rude city for decades. A 1985 Chicago Tribune editorial said rudeness was "chronic, thoughtless, and utterly pervasive."

Chicago was also home to Ed Debevic's Diner for 31 years, which was known for its "rude" staff whose attitudes were part of the experience. In 2015, a video of one of the waitresses being snarky to diners went viral.

"If you want good service, you go somewhere else. I know Hooters is probably more your speed, but you came here on purpose," waitress Kryssie Ridolfi said to diners on the video.

The rude diner closed down in late 2015, but it plans to make a comeback.