The total population of Belle Prairie City is estimated to be 56 with 27 males (48.21%) and 29 females (51.79%). There are 2 more females than males in Belle Prairie City.
In 2022, the population of Belle Prairie City was 47, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Belle Prairie City's population was 47, a decline of 0.00% compared to a population of 47 in 2020.
The median age in Belle Prairie City, IL is 40.9, as per 2021 ACS 5-Year Estimates. Of the total population, 22.22% were under the age of 15, 5.56% aged 15 to 29, 55.56% aged 30 to 64, 16.67% aged 65 to 84, and 0.00% were 85 years of age and older.