The total population of Mount Erie is estimated to be 135 with 80 males (59.26%) and 55 females (40.74%). There are 25 less females than males in Mount Erie.
In 2022, the population of Mount Erie was 98, a 1.03% increase year-by-year from 2021. Previously, in 2021, Mount Erie's population was 97, a decline of 1.02% compared to a population of 98 in 2020.
The median age in Mount Erie, IL is 28.7, as per 2021 ACS 5-Year Estimates. Of the total population, 30.94% were under the age of 15, 20.86% aged 15 to 29, 36.69% aged 30 to 64, 10.07% aged 65 to 84, and 1.44% were 85 years of age and older.