Washington County IL Information


Washington County Subdivisions

Washington County IL Data & Demographics (As of July 1, 2014)


Total Population 14,576
Population in Households 14,330
Population in Familes 11,885
Population in Group Qrtrs 246
Population Density1 26
Diversity Index2 10


Total Households 5,919
Average Household Size 2.42
Family Households 4,078
Average Family Size 3


Total Housing Units 6,607 (100%)
Owner Occupied HU 4,691 (71.0%)
Renter Occupied HU 1,228 (18.6%)
Vacant Housing Units 688 (10.4%)
Median Home Value $88,271
Average Home Value $101,727


Median Household Income $54,701
Average Household Income $64,869
Per Capita Income $26,379
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population -0.22% -0.33%
Households -0.03% -0.21%
Families -0.2% -0.3%
Median Household Income   1.7%
Per Capita Income   2.01%
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.


Washington County IL - Peer Comparisons by Rank and Percentile

The table below compares Washington County to the other 102 counties and county equivalents in Illinois by rank and percentile using July 1, 2014 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 # 77 25th
Population Density1 # 87 16th
Diversity Index2 # 72 30th
Median Household Income # 18 83rd
Per Capita Income # 25 76th

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