In 2022, the population of Niagara was 42, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Niagara's population was 42, a decline of 2.33% compared to a population of 43 in 2020.
The median age in Niagara, ND is 57.5, as per 2021 ACS 5-Year Estimates. Of the total population, 20.69% were under the age of 15, 3.45% aged 15 to 29, 51.72% aged 30 to 64, 24.14% aged 65 to 84, and 0.00% were 85 years of age and older.