Wilmington is a city located in Will County Illinois. Wilmington has a 2020 population of 6,003. Wilmington is currently declining at a rate of -0.60% annually and its population has decreased by -3.55% since the most recent census, which recorded a population of 6,224 in 2010. Wilmington reached it's highest population of 6,224 in 2010.
The average household income in Wilmington is $75,785 with a poverty rate of 13.33%. The median rental costs in recent years comes to $867 per month, and the median house value is $164,400. The median age in Wilmington is 43.7 years, 40.4 years for males, and 46 years for females.