South Wilmington Flag

South Wilmington

County:
Grundy County
County Seat:
No
Area (mi²):
0.492
State:
Illinois

South Wilmington is a village located in Grundy County, Illinois. South Wilmington has a 2026 population of 715. South Wilmington is currently declining at a rate of 0% annually and its population has increased by 1.56% since the most recent census, which recorded a population of 704 in 2020.

715
Total Population
1,454
Density (mi²)

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)