Lake County

Lake County is a county in Illinois, United States. The population in Lake County was 709,150 in 2022. The median age in Lake County was 38.5 in 2021. The median income in Lake County was $41,213 in 2021. The unemployment rate in Lake County was 4.1% in 2023. The percentage of people with obesity in Lake County was 31.2% in 2021. The percentage of people who binge drink in Lake County was 17.6% in 2021. The percentage of people who smoke in Lake County was 11.9% in 2021.