The total population of Flaxville is estimated to be 62 with 40 males (64.52%) and 22 females (35.48%). There are 18 less females than males in Flaxville.
In 2022, the population of Flaxville was 60, a 3.23% decrease year-by-year from 2021. Previously, in 2021, Flaxville's population was 62, an increase of 1.64% compared to a population of 61 in 2020.
The median age in Flaxville, MT is 54.4, as per 2021 ACS 5-Year Estimates. Of the total population, 10.20% were under the age of 15, 18.37% aged 15 to 29, 46.94% aged 30 to 64, 10.20% aged 65 to 84, and 14.29% were 85 years of age and older.