Polk County

Polk County is a county in Iowa, United States. The population in Polk County was 501,089 in 2022. The median age in Polk County was 35.9 in 2021. The median income in Polk County was $39,658 in 2021. The unemployment rate in Polk County was 2.9% in 2023. The percentage of people with obesity in Polk County was 35.7% in 2021. The percentage of people who binge drink in Polk County was 20.6% in 2021. The percentage of people who smoke in Polk County was 15.4% in 2021.