The total population of Wilmington is estimated to be 124 with 59 males (47.58%) and 65 females (52.42%). There are 6 more females than males in Wilmington.
In 2022, the population of Wilmington was 90, a 2.17% decrease year-by-year from 2021. Previously, in 2021, Wilmington's population was 92, a decline of 1.08% compared to a population of 93 in 2020.
The median age in Wilmington, IL is 50.1, as per 2021 ACS 5-Year Estimates. Of the total population, 14.43% were under the age of 15, 19.59% aged 15 to 29, 44.33% aged 30 to 64, 21.65% aged 65 to 84, and 0.00% were 85 years of age and older.