In 2022, the population of Reydon was 133, a 1.48% decrease year-by-year from 2021. Previously, in 2021, Reydon's population was 135, a decline of 2.17% compared to a population of 138 in 2020.
The median age in Reydon, OK is 25.5, as per 2021 ACS 5-Year Estimates. Of the total population, 36.03% were under the age of 15, 24.26% aged 15 to 29, 34.56% aged 30 to 64, 3.68% aged 65 to 84, and 1.47% were 85 years of age and older.