The total population of Bentonia is estimated to be 343 with 143 males (41.69%) and 200 females (58.31%). There are 57 more females than males in Bentonia.
In 2022, the population of Bentonia was 307, a 1.92% decrease year-by-year from 2021. Previously, in 2021, Bentonia's population was 313, a decline of 1.57% compared to a population of 318 in 2020.
The median age in Bentonia, MS is 54.7, as per 2021 ACS 5-Year Estimates. Of the total population, 21.13% were under the age of 15, 6.10% aged 15 to 29, 37.91% aged 30 to 64, 31.81% aged 65 to 84, and 3.05% were 85 years of age and older.