Johnson County

Johnson County is a county in Illinois, United States. The population in Johnson County was 13,381 in 2022. The median age in Johnson County was 43.4 in 2021. The median income in Johnson County was $28,864 in 2021. The unemployment rate in Johnson County was 4.7% in 2023. The percentage of people with obesity in Johnson County was 39.1% in 2021. The percentage of people who binge drink in Johnson County was 18% in 2021. The percentage of people who smoke in Johnson County was 19.5% in 2021.