The total population of Arrow Rock is estimated to be 36 with 14 males (38.89%) and 22 females (61.11%). There are 8 more females than males in Arrow Rock.
In 2022, the population of Arrow Rock was 59, a 1.67% decrease year-by-year from 2021. Previously, in 2021, Arrow Rock's population was 60, a decline of 0.00% compared to a population of 60 in 2020.
The median age in Arrow Rock, MO is 64.0, as per 2021 ACS 5-Year Estimates. Of the total population, 11.36% were under the age of 15, 6.82% aged 15 to 29, 40.91% aged 30 to 64, 36.36% aged 65 to 84, and 4.55% were 85 years of age and older.