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South Wilmington, IL Profile: Facts & Data

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South Wilmington, Illinois - Basic Facts

The Village of South Wilmington had a population of 712 as of July 1, 2023.

The primary coordinate point for South Wilmington is located at latitude 41.1728 and longitude -88.2767 in Grundy County. The formal boundaries for the Village of South Wilmington 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 Village of South Wilmington 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.


Jump to... (On This Page!)
  1. South Wilmington 2023 Demographic Data
  2. Growth Rates for South Wilmington (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2023 Demographics
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South Wilmington, IL Data & Demographics (As of July 1, 2023)

POPULATION

Total Population 712 (100%)
Population in Households 712 (100.0%)
Population in Families 601 (84.4%)
Population in Group Quarters1 0
Population Density 1,447
Diversity Index2 16
 
 

INCOME

Median Household Income $81,089
Average Household Income $101,889
% of Income for Mortgage4 13%
Per Capita Income $42,358
Wealth Index5 89
Socioeconomic Status Index6 Moderate (56.7)
 

HOUSING

Total HU (Housing Units) 314 (100%)
Owner Occupied HU 235 (74.8%)
Renter Occupied HU 61 (19.4%)
Vacant Housing Units 18 ( 5.7%)
Median Home Value $169,485
Average Home Value $197,553
Housing Affordability Index3 162
 

HOUSEHOLDS

Total Households 296
Average Household Size 2.41
Family Households 209
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2023 2023-2028
Population 0.09% -0.63%
Households 0.21% -0.20%
Families   -0.10%
Median Household Income   2.69%
Per Capita Income   3.30%
Owner Occupied HU   0.25%

South Wilmington, IL - Peer Comparisons by Rank and Percentile

The table below compares South Wilmington to the other 1,464 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2023 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 # 793 46th
Population Density # 436 70th
Median Household Income # 371 75th
Housing Affordability Index # 908 62nd
Per Capita Income # 371 75th
Diversity Index # 916 37th

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

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