In 2022, the population of Spivey was 58, a 1.69% decrease year-by-year from 2021. Previously, in 2021, Spivey's population was 59, a decline of 0.00% compared to a population of 59 in 2020.
The median age in Spivey, KS is 29.0, as per 2021 ACS 5-Year Estimates. Of the total population, 32.31% were under the age of 15, 18.46% aged 15 to 29, 36.92% aged 30 to 64, 4.62% aged 65 to 84, and 7.69% were 85 years of age and older.