Lake County IL Information


Lake County Subdivisions

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


Total Population 708,719
Population in Households 690,175
Population in Familes 598,121
Population in Group Qrtrs 18,544
Population Density1 1,597
Diversity Index2 65


Median Household Income $88,126
Average Household Income $123,792
Per Capita Income $43,702


Total Housing Units 265,499 (100%)
Owner Occupied HU 181,453 (68.3%)
Renter Occupied HU 64,950 (24.5%)
Vacant Housing Units 19,096 ( 7.2%)
Median Home Value $285,335
Average Home Value $399,030


Total Households 246,403
Average Household Size 2.8
Family Households 180,879
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 0.09% 0.19%
Households 0.23% 0.26%
Families 0.1% 0.17%
Median Household Income   1.57%
Per Capita Income   1.9%


Lake County IL - Peer Comparisons by Rank and Percentile

The table below compares Lake 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 # 3 98th
Population Density # 3 98th
Diversity Index # 3 98th
Median Household Income # 2 99th
Per Capita Income # 1 100th

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