Mason County

Mason County is a county in Illinois, United States. The population in Mason County was 12,523 in 2023. The median age in Mason County was 45.5 in 2023. The median income in Mason County was $34,776 in 2023. The unemployment rate in Mason County was 4.9% in 2024. The percentage of people with obesity in Mason County was 35.2% in 2022. The percentage of people who binge drink in Mason County was 20.8% in 2022. The percentage of people who smoke in Mason County was 16.1% in 2022.