Charts What is the Median Age of the Residents in each U.S. State? January 4, 2017 Alex The median age in the Unites States is 37.8 years. The state with the youngest median age is Utah, were the average resident is 30.6 years old. Maine has the oldest residents with a median age of 44.6 years old. Related Posts:The Oldest Cities in the U.S. MappedOfficial gems, minerals and rocks symbols of every…The Oldest Building in Each U.S. State MappedThe Oldest Business in Every Country in the worldThe Over Tourism MapThe Most Photographed Food in the U.S.The Oldest School In Every Country MappedComparing Each State's Highest-Paying Job to the…