Jefferson County

Jefferson County is a county in Kansas, United States. The population in Jefferson County was 18,344 in 2022. The median age in Jefferson County was 43.7 in 2021. The median income in Jefferson County was $39,121 in 2021. The unemployment rate in Jefferson County was 2% in 2023. The percentage of people with obesity in Jefferson County was 33.6% in 2021. The percentage of people who binge drink in Jefferson County was 20.1% in 2021. The percentage of people who smoke in Jefferson County was 16.8% in 2021.