In 2022, the population of Bentley was 27, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Bentley's population was 27, a decline of 0.00% compared to a population of 27 in 2020.
The median age in Bentley, IL is 58.5, as per 2021 ACS 5-Year Estimates. Of the total population, 10.53% were under the age of 15, 10.53% aged 15 to 29, 42.11% aged 30 to 64, 15.79% aged 65 to 84, and 21.05% were 85 years of age and older.