Will County IL Information


Will County Subdivisions

Will County IL Data & Demographics (As of July 1, 2015)


Total Population 687,310
Population in Households 678,751
Population in Familes 600,008
Population in Group Qrtrs 8,559
Population Density1 821
Diversity Index2 59


Total Households 228,072
Average Household Size 2.98
Family Households 175,091
Average Family Size 3


Total Housing Units 241,811 (100%)
Owner Occupied HU 185,391 (76.7%)
Renter Occupied HU 42,681 (17.7%)
Vacant Housing Units 13,739 ( 5.7%)
Median Home Value $235,707
Average Home Value $268,802


Median Household Income $79,264
Average Household Income $97,841
Per Capita Income $32,650
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.27% 0.29%
Households 0.24% 0.27%
Families 0.11% 0.19%
Median Household Income   2.16%
Per Capita Income   2.41%
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.


Will County IL - Peer Comparisons by Rank and Percentile

The table below compares Will County to the other 102 counties and county equivalents in Illinois by rank and percentile using July 1, 2015 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 # 4 97th
Population Density1 # 5 96th
Diversity Index2 # 4 97th
Median Household Income # 4 97th
Per Capita Income # 6 95th

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