Dean is active in several community organizations including the Rotary International (a Paul Harris Fellow), the Travelers Rest Chapter of the Corps of Discovery Expedition, the Rocky Mountain Elk Foundation, the Westslope Chapter of Trout Unlimited, the Missoula Back Country Horsemen, the Montana Wilderness Assosciation and the Western Montana Fish and Game Association. Dean also actively supports several local and national service organizations including Hospice, the Poverello Center for homeless, the Salvation Army, United Way, Boy Scouts of Montana, and Refugees International. Dean enjoys downhill skiing, rafting, riding and horse packing, and golfing with hackers.

Dean and his wife Meredith, a former high school English teacher, enjoy watching sports, attending plays, lectures, and concerts, visiting galleries, traveling, reading, cooking, watching wildlife, and especially spending time with family and friends.