Charleston County

Charleston County is a county in South Carolina, United States. The population in Charleston County was 424,367 in 2023. The median age in Charleston County was 39 in 2023. The median income in Charleston County was $45,670 in 2023. The unemployment rate in Charleston County was 3.2% in 2024. The percentage of people with obesity in Charleston County was 28.8% in 2022. The percentage of people who binge drink in Charleston County was 23.1% in 2022. The percentage of people who smoke in Charleston County was 10.1% in 2022.