The total population of Donnybrook is estimated to be 76 with 35 males (46.05%) and 41 females (53.95%). There are 6 more females than males in Donnybrook.
In 2022, the population of Donnybrook was 74, a 1.33% decrease year-by-year from 2021. Previously, in 2021, Donnybrook's population was 75, a decline of 1.32% compared to a population of 76 in 2020.
The median age in Donnybrook, ND is 63.0, as per 2021 ACS 5-Year Estimates. Of the total population, 0.00% were under the age of 15, 13.73% aged 15 to 29, 58.82% aged 30 to 64, 23.53% aged 65 to 84, and 3.92% were 85 years of age and older.