South Wilmington, IL Profile: Facts, Map & Data


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South Wilmington, Illinois - Basic Facts

The Village of South Wilmington had a population of 699 as of July 1, 2016.

The primary coordinate point for South Wilmington is located at latitude 41.1744 and longitude -88.2813 in Grundy County. The formal boundaries for the Village of South Wilmington (see map below) encompass a land area of 0.56 sq. miles and a water area of 0 sq. miles. Grundy County is in the Central time zone (GMT -6). The elevation is 587 feet.

The Village of South Wilmington (GNIS ID: 2399862) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of South Wilmington is located within Township of Greenfield, a minor civil division (MCD) of Grundy County.

Beneath the boundary map are tables with South Wilmington population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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Village of South Wilmington, IL Boundary Map

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Boundary Maps: Township of Greenfield | Grundy County | Illinois Counties

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South Wilmington, IL Data & Demographics (As of July 1, 2016)


Total Population 699
Population in Households 699
Population in Familes 573
Population in Group Qrtrs 0
Population Density1 1,246
Diversity Index2 10


Total Households 296
Average Household Size 2.36
Family Households 203
Average Family Size 3


Total Housing Units 321 (100%)
Owner Occupied HU 241 (75.1%)
Renter Occupied HU 55 (17.1%)
Vacant Housing Units 25 ( 7.8%)
Median Home Value $125,872
Average Home Value $165,768


Median Household Income $57,276
Average Household Income $69,186
Per Capita Income $28,508
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.42% 0.4%
Households 0.33% 0.27%
Families 0.81% 0.1%
Median Household Income   0.97%
Per Capita Income   1.1%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

South Wilmington, IL - Peer Comparisons by Rank and Percentile

The table below compares South Wilmington to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 814 40th
Population Density1 # 614 55th
Diversity Index2 # 851 38th
Median Household Income # 474 65th
Per Capita Income # 453 67th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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