Warren County IL Information


Warren County Subdivisions

Warren County IL Data & Demographics (As of July 1, 2017)


Total Population 17,348
Daytime Population: Workers 7,129
Daytime Population: Residents 9,116
Total Daytime Population (TDP) 16,245
Ratio TDP/Total Population1 0.94
Population in Households 16,338
Population in Familes 13,145
Population in Group Qrtrs 1,010
Population Density2 32
Diversity Index3 36


Median Household Income $46,496
Average Household Income $57,905
Per Capita Income $23,045


Total Housing Units 7,791 (100%)
Owner Occupied HU 4,857 (62.3%)
Renter Occupied HU 1,978 (25.4%)
Vacant Housing Units 956 (12.3%)
Median Home Value $91,380
Average Home Value $124,614


Total Households 6,835
Average Household Size 2.39
Family Households 4,505
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population -0.28% -0.4%
Households -0.17% -0.4%
Families -0.34% -0.5%
Median Household Income   1.43%
Per Capita Income   2.18%


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, 2017 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 # 63 39th
Population Density # 72 30th
Diversity Index # 24 77th
Median Household Income # 67 35th
Per Capita Income # 89 14th

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