Population Demographics
As of 2025 the population of Lake County is 33,814. The population is expected to grow to 35,551 by 2030 - a growth rate of 1.01%.
The median age of Lake County residents is 45.
The diversity index of Lake County is 54.1, meaning that there is a 54% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.