In 2022, the population of Ritchey was 69, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Ritchey's population was 69, an increase of 1.47% compared to a population of 68 in 2020.
The median age in Ritchey, MO is 47.0, as per 2021 ACS 5-Year Estimates. Of the total population, 16.67% were under the age of 15, 27.78% aged 15 to 29, 22.22% aged 30 to 64, 33.33% aged 65 to 84, and 0.00% were 85 years of age and older.