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 Custer . . .
- was 52.7 in 2018, compared to 41.2 in 2000, 34.7 in 1990 and 31.9 in 1980;
- was 52.7 in 2018 compared to 36.6 in Idaho;
- ranked 4th - from highest to lowest - out of Idaho's 44 counties in 2018.