Winnebago County

Winnebago County is a county in Illinois, United States. The population in Winnebago County was 280,922 in 2023. The median age in Winnebago County was 39.7 in 2023. The median income in Winnebago County was $35,565 in 2023. The unemployment rate in Winnebago County was 4.8% in 2024. The percentage of people with obesity in Winnebago County was 38.5% in 2022. The percentage of people who binge drink in Winnebago County was 18.9% in 2022. The percentage of people who smoke in Winnebago County was 18.6% in 2022.