The total population of Blairstown is estimated to be 59 with 30 males (50.85%) and 29 females (49.15%). There are 1 less females than males in Blairstown.
In 2022, the population of Blairstown was 98, a 1.03% increase year-by-year from 2021. Previously, in 2021, Blairstown's population was 97, an increase of 1.04% compared to a population of 96 in 2020.
The median age in Blairstown, MO is 37.6, as per 2021 ACS 5-Year Estimates. Of the total population, 12.68% were under the age of 15, 22.54% aged 15 to 29, 43.66% aged 30 to 64, 21.13% aged 65 to 84, and 0.00% were 85 years of age and older.