In 2022, the population of Monango was 30, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Monango's population was 30, a decline of 3.23% compared to a population of 31 in 2020.
The median age in Monango, ND is 21.5, as per 2021 ACS 5-Year Estimates. Of the total population, 48.28% were under the age of 15, 13.79% aged 15 to 29, 37.93% aged 30 to 64, 0.00% aged 65 to 84, and 0.00% were 85 years of age and older.