Johnson County

Johnson County is a county in Iowa, United States. The population in Johnson County was 156,420 in 2022. The median age in Johnson County was 30.7 in 2021. The median income in Johnson County was $32,798 in 2021. The unemployment rate in Johnson County was 2.4% in 2023. The percentage of people with obesity in Johnson County was 33.3% in 2021. The percentage of people who binge drink in Johnson County was 21.1% in 2021. The percentage of people who smoke in Johnson County was 14% in 2021.