Warren County IL Information


Warren County Subdivisions

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


Total Population 17,969
Population in Households 16,853
Population in Familes 13,562
Population in Group Qrtrs 1,116
Population Density1 33
Diversity Index2 35


Total Households 7,121
Average Household Size 2.37
Family Households 4,704
Average Family Size 3


Total Housing Units 7,961 (100%)
Owner Occupied HU 5,084 (63.9%)
Renter Occupied HU 2,037 (25.6%)
Vacant Housing Units 840 (10.6%)
Median Home Value $89,843
Average Home Value $122,723


Median Household Income $42,987
Average Household Income $54,974
Per Capita Income $22,033
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.24% 0.34%
Households 0.46% 0.5%
Families 0.3% 0.39%
Median Household Income   2.21%
Per Capita Income   1.93%
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.


Warren County IL - Peer Comparisons by Rank and Percentile

The table below compares Warren 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 # 62 40th
Population Density1 # 72 30th
Diversity Index2 # 25 77th
Median Household Income # 72 30th
Per Capita Income # 89 14th

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