there are certain areas or neighborhoods that seem to have an infestation problem. I suggest you reach out to your local pest control company(s) as they will know if there is a problem within your neighborhood. Good luck with that.
Scorpions are indigenous to Arizona so they are really everywhere, but interestingly, I have lived in communities here where I NEVER saw 1 scorpion and others where they showed up frequently. I don't think they pick certain neighborhoods to hang out in but they do seem to like mountainous areas or areas where the dirt has been dug up recently. Regards