In 2022, the population of Climax was 44, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Climax's population was 44, a decline of 2.22% compared to a population of 45 in 2020.
The median age in Climax, KS is 36.0, as per 2021 ACS 5-Year Estimates. Of the total population, 32.43% were under the age of 15, 16.22% aged 15 to 29, 36.49% aged 30 to 64, 14.86% aged 65 to 84, and 0.00% were 85 years of age and older.