Mange can be a problem anywhere. This question has been asked alot, and there is a statistic that is an eye opener. 70% of the worlds Coyote population has mange, whether its very bad to small infestations. It can be a real big problem if the population is close enough to pass on to domesticated animals, for the disease carrying mites can be passed onto them with ease. It is easier than you think. Ground squirrels for instance, carry both mites, ticks, and fleas that can carry anything from fevers to the dreadful bubonic plague. Sorry, didn't mean to scare ya. Yet, most animals are seen and taken care of before any possibility of passing of mange within the yote numbers. I have seen and taken care of a great deal of mangy goats, sheep, and even had the unfortunate luck of seeing a dog being treated for mange with neighbors or others in rural ag land. Not a site to see, since I am a dog lover. So anytime you see mangy yote, get the rifle out if it is legal for predation hunting in your state/county, and take that yote out!