Union County IL Information


Union County Subdivisions

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


Total Population 17,914
Daytime Population: Workers 5,481
Daytime Population: Residents 10,449
Total Daytime Population (TDP) 15,930
Ratio TDP/Total Population1 0.89
Population in Households 17,332
Population in Familes 14,085
Population in Group Qrtrs 582
Population Density2 43
Diversity Index3 21


Median Household Income $45,972
Average Household Income $59,381
Per Capita Income $24,014


Total Housing Units 7,998 (100%)
Owner Occupied HU 5,260 (65.8%)
Renter Occupied HU 1,900 (23.8%)
Vacant Housing Units 838 (10.5%)
Median Home Value $98,727
Average Home Value $136,445


Total Households 7,160
Average Household Size 2.42
Family Households 4,776
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 0.08% -0.11%
Households -0.01% -0.17%
Families -0.17% -0.27%
Median Household Income   2.01%
Per Capita Income   2.51%


Union County IL - Peer Comparisons by Rank and Percentile

The table below compares Union 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 # 61 41st
Population Density # 58 44th
Diversity Index # 51 51st
Median Household Income # 71 31st
Per Capita Income # 74 28th

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