DeKalb County IL Information


DeKalb County Subdivisions

DeKalb County IL Data & Demographics (As of July 1, 2016)


Total Population 106,899
Population in Households 100,226
Population in Familes 74,606
Population in Group Qrtrs 6,673
Population Density1 169
Diversity Index2 45


Total Households 38,709
Average Household Size 2.59
Family Households 23,643
Average Family Size 3


Total Housing Units 41,613 (100%)
Owner Occupied HU 22,849 (54.9%)
Renter Occupied HU 15,860 (38.1%)
Vacant Housing Units 2,904 ( 7.0%)
Median Home Value $178,160
Average Home Value $204,587


Median Household Income $55,024
Average Household Income $68,269
Per Capita Income $25,662
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.26% 0.59%
Households 0.09% 0.51%
Families -0.09% 0.38%
Median Household Income   0.74%
Per Capita Income   1.4%
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.


DeKalb County IL - Peer Comparisons by Rank and Percentile

The table below compares DeKalb County to the other 102 counties and county equivalents 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 # 20 81st
Population Density1 # 18 83rd
Diversity Index2 # 18 82nd
Median Household Income # 18 83rd
Per Capita Income # 43 59th

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