In 2022, the population of Waco was 73, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Waco's population was 73, an increase of 1.39% compared to a population of 72 in 2020.
The median age in Waco, MO is 47.3, as per 2021 ACS 5-Year Estimates. Of the total population, 9.83% were under the age of 15, 22.54% aged 15 to 29, 61.85% aged 30 to 64, 5.78% aged 65 to 84, and 0.00% were 85 years of age and older.