The total population of Mountain is estimated to be 97 with 70 males (72.16%) and 27 females (27.84%). There are 43 less females than males in Mountain.
In 2022, the population of Mountain was 70, a 2.78% decrease year-by-year from 2021. Previously, in 2021, Mountain's population was 72, a decline of 12.20% compared to a population of 82 in 2020.
The median age in Mountain, ND is 65.2, as per 2021 ACS 5-Year Estimates. Of the total population, 8.82% were under the age of 15, 5.88% aged 15 to 29, 33.82% aged 30 to 64, 44.12% aged 65 to 84, and 7.35% were 85 years of age and older.