Wilmington
- County:
- Will County
- County Seat:
- No
- Area (mi²):
- 0.786
- State:
- Illinois
Wilmington is a village located in Will County, Illinois. Wilmington has a 2026 population of 86. Wilmington is currently declining at a rate of -1.15% annually and its population has decreased by -4.44% since the most recent census, which recorded a population of 90 in 2020.
The median household income in Wilmington is $74,167 with a poverty rate of 31.52%. The median age in Wilmington is 46.2 years: 40.3 years for males, and 46.4 years for females. For every 100 females there are 196.8 males.