The total population of Neosho Falls is estimated to be 150 with 70 males (46.67%) and 80 females (53.33%). There are 10 more females than males in Neosho Falls.
In 2022, the population of Neosho Falls was 136, a 1.49% increase year-by-year from 2021. Previously, in 2021, Neosho Falls's population was 134, an increase of 0.75% compared to a population of 133 in 2020.
The median age in Neosho Falls, KS is 45.8, as per 2021 ACS 5-Year Estimates. Of the total population, 11.43% were under the age of 15, 7.14% aged 15 to 29, 67.14% aged 30 to 64, 7.14% aged 65 to 84, and 7.14% were 85 years of age and older.