Johnson County

Johnson County is a county in Kansas, United States. The population in Johnson County was 619,195 in 2022. The median age in Johnson County was 37.9 in 2021. The median income in Johnson County was $48,317 in 2021. The unemployment rate in Johnson County was 2% in 2023. The percentage of people with obesity in Johnson County was 29.2% in 2021. The percentage of people who binge drink in Johnson County was 19.8% in 2021. The percentage of people who smoke in Johnson County was 10% in 2021.