In 2022, the population of Dodson was 127, a 0.79% increase year-by-year from 2021. Previously, in 2021, Dodson's population was 126, a decline of 0.00% compared to a population of 126 in 2020.
The median age in Dodson, MT is 77.5, as per 2021 ACS 5-Year Estimates. Of the total population, 9.86% were under the age of 15, 8.45% aged 15 to 29, 14.08% aged 30 to 64, 35.92% aged 65 to 84, and 31.69% were 85 years of age and older.