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 Idaho . . .
- was 36.9 in 2019, compared to 33.2 in 2000, 31.5 in 1990 and 27.6 in 1980;
- was 36.9 in 2019 compared to 38.4 in the U.S.;
- ranked 1st - from highest to lowest - out of the U.S.'s 50 states in 2019.