Madison County IL Information


Madison County Subdivisions

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


Total Population 268,332
Population in Households 264,523
Population in Familes 211,206
Population in Group Qrtrs 3,809
Population Density1 375
Diversity Index2 29


Total Households 107,888
Average Household Size 2.45
Family Households 70,892
Average Family Size 3


Total Housing Units 118,930 (100%)
Owner Occupied HU 75,982 (63.9%)
Renter Occupied HU 31,906 (26.8%)
Vacant Housing Units 11,042 ( 9.3%)
Median Home Value $123,717
Average Home Value $152,476


Median Household Income $52,220
Average Household Income $68,780
Per Capita Income $28,088
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.06% -0.05%
Households -0.03% -0.03%
Families -0.19% -0.14%
Median Household Income   0.37%
Per Capita Income   1.37%
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, 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 # 8 93rd
Population Density1 # 10 91st
Diversity Index2 # 35 67th
Median Household Income # 26 75th
Per Capita Income # 21 80th

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