Median age is the age at which half the population is younger and half is older. A lower median age indicates a relatively younger population, while a higher median age indicates a relatively older population.
The median age in Montana . . .
- was 39.8 in 2017, compared to 37.5 in 2000, 33.8 in 1990 and 29.0 in 1980;
- was 39.8 in 2017 compared to 38.0 in the U.S.;
- ranked 12th - from highest to lowest - out of the U.S.'s 50 states in 2017.