South Wilmington is a city located in Grundy County Illinois. With a 2020 population of 716, it is the 782nd largest city in Illinois and the 16986th largest city in the United States. South Wilmington is currently growing at a rate of 0.42% annually and its population has increased by 0.85% since the most recent census, which recorded a population of 710 in 2020. Spanning over 0 miles, South Wilmington has a population density of 1,456 people per square mile.
The average household income in South Wilmington is $87,623 with a poverty rate of 7.26%. The median rental costs in recent years comes to $963 per month, and the median house value is $131,600. The median age in South Wilmington is 40.7 years, 38.5 years for males, and 43.5 years for females.
According to the most recent ACS, the racial composition of South Wilmingtonwas:
Rate of Home Ownership
Average Family Size
Average Household Size
The highest rate of high school graduation is among 2+ races people with a rate of 100.00%.
The highest rate of bachelors degrees is among white people with a rate of 9.48%.
99.39% of South Wilmington residents speak only English, while 0.61% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 0.61% of the population.
Overall Poverty Rate
Male Poverty Rate
Female Poverty Rate
The race most likely to be in poverty in South Wilmington is White, with 7.41% below the poverty level.
The race least likely to be in poverty in South Wilmington is Other, with NaN% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.64%. Among those working part-time, it was 3.38%, and for those that did not work, the poverty rate was 14.21%.
Number of Veterans
Veteran Poverty Rate
Veteran Disability Rate
Labor Force Participation
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Born in South Wilmington
100.00% of South Wilmington residents were born in the United States, with 90.03% having been born in Illinois. 0.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.