I have a creek bed bordering my backyard with large trees and even with spraying and fogging I still get one now and then on me or the dogs. Go for a walk in the Busch wildlife area and you most likely will get one.
Years ago my wife (girlfriend at the time) went to the hospital with a horrible reaction to something; the first question from the doctor: Do you have a dog?
When she replied that she did, the doctor said something rode home on him and bit you. She was OK after some kind of treatment, but it was very creepy; still don’t know what it was, but we don’t have deer ticks here.