Wilmington, IL Profile: Facts & Data


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Wilmington, Illinois - Basic Facts

The City of Wilmington had a population of 5,794 as of July 1, 2018.

The primary coordinate point for Wilmington is located at latitude 41.3078 and longitude -88.1467 in Will County. The formal boundaries for the City of Wilmington (see map below) encompass a land area of 9.36 sq. miles and a water area of 0.65 sq. miles. Will County is in the Central time zone (GMT -6). The elevation is 545 feet.

The City of Wilmington (GNIS ID: 2397328) 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 City of Wilmington is located within Township of Wilmington, a minor civil division (MCD) of Will County.

Alternate Unofficial Names for Wilmington: Winchester.

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  1. Wilmington 2018 Demographic Data
  2. Growth Rates for 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 - 2018 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2018, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


Wilmington, IL Data & Demographics (As of July 1, 2018)


Total Population 5,794
Population in Households 5,611
Population in Familes 4,425
Population in Group Qrtrs 183
Population Density2 619
Diversity Index3 18


Median Household Income $58,917
Average Household Income $72,625
Per Capita Income $30,091


Total Housing Units 2,521 (100%)
Owner Occupied HU 1,503 (59.6%)
Renter Occupied HU 788 (31.3%)
Vacant Housing Units 230 ( 9.1%)
Median Home Value $176,102
Average Home Value $211,560


Total Households 2,291
Average Household Size 2.45
Family Households 1,453
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  2. Population Density = Total Population per square mile.
  3. 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 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.


2010-2018 2018-2023
Population 0.15% 0.45%
Households 0.24% 0.54%
Families -0.16% 0.38%
Median Household Income   1.82%
Per Capita Income   2.33%

Wilmington, IL - Peer Comparisons by Rank and Percentile

The table below compares Wilmington to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2018 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 # 313 77th
Population Density # 1000 27th
Diversity Index # 530 62nd
Median Household Income # 527 62nd
Per Capita Income # 493 64th

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

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