Iowans aren't very nice drivers, a new survey promoting better driving habits in the U.S. shows.

Iowa earned a D when it comes to having the most courteous drivers, Kars4Kids.org reports through its summer driving awareness campaign, Drive Human.

Even worse, the state recorded an F for not letting cars merge in front of you and the use of turn signals.

"Iowans are not nice to slow drivers but will respect your need for speed if you try to pass them," Kars4Kids.org said.

Read the full article on the Des Moines Register website.