Boone County IL Information


Boone County Subdivisions

Boone County IL Data & Demographics (As of July 1, 2018)


Total Population 54,333
Population in Households 54,023
Population in Familes 47,375
Population in Group Qrtrs 310
Population Density1 194
Diversity Index2 55


Median Household Income $64,270
Average Household Income $86,648
Per Capita Income $29,981


Total Housing Units 20,219 (100%)
Owner Occupied HU 14,401 (71.2%)
Renter Occupied HU 4,267 (21.1%)
Vacant Housing Units 1,551 ( 7.7%)
Median Home Value $172,628
Average Home Value $215,450


Total Households 18,668
Average Household Size 2.89
Family Households 14,254
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 0.04% -0.14%
Households 0.11% -0.1%
Families -0.02% -0.18%
Median Household Income   2.26%
Per Capita Income   2.65%


Boone County IL - Peer Comparisons by Rank and Percentile

The table below compares Boone County to the other 102 counties and county equivalents in Illinois by rank and percentile using July 1, 2018 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 # 26 75th
Population Density # 16 85th
Diversity Index # 8 93rd
Median Household Income # 10 91st
Per Capita Income # 24 77th

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