Rock Island County

County in Illinois, United States of America, North America

Rock Island County is a county in Illinois, United States. The population in Rock Island County was 141,527 in 2022. The median age in Rock Island County was 40.1 in 2021. The median income in Rock Island County was $32,577 in 2021. The unemployment rate in Rock Island County was 4% in 2023. The percentage of people with obesity in Rock Island County was 38.2% in 2021. The percentage of people who binge drink in Rock Island County was 16.6% in 2021. The percentage of people who smoke in Rock Island County was 17.9% in 2021.