Madison County IL Information


Madison County Subdivisions

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


Total Population 267,078
Population in Households 263,324
Population in Familes 210,572
Population in Group Qrtrs 3,754
Population Density1 373
Diversity Index2 28


Total Households 107,735
Average Household Size 2.44
Family Households 70,832
Average Family Size 3


Total Housing Units 118,599 (100%)
Owner Occupied HU 75,882 (64.0%)
Renter Occupied HU 31,853 (26.9%)
Vacant Housing Units 10,864 ( 9.2%)
Median Home Value $158,979
Average Home Value $192,460


Median Household Income $51,182
Average Household Income $66,433
Per Capita Income $26,982
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.16% -0.08%
Households -0.06% -0.07%
Families -0.25% -0.18%
Median Household Income   2.44%
Per Capita Income   2.48%
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.


Madison County IL - Peer Comparisons by Rank and Percentile

The table below compares Madison 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 # 8 93rd
Population Density1 # 10 91st
Diversity Index2 # 37 66th
Median Household Income # 37 65th
Per Capita Income # 27 75th

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