Colleton County, SC Demographics

The total population of Colleton County is estimated to be 38,561 with 18,675 males (48.43%) and 19,886 females (51.57%). There are 1,211 more females than males in Colleton County.
The median household income in Colleton County was $44,770 in 2021, which marked an an increase of 3,129(7.51%) from $41,641 in 2020. This income is 60.01% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Colleton County sees its highest median household income among householders in the age group of 25 to 44 years old, at $49,780. Overall, the median household income for the county of Colleton County stands at $44,770.
In Colleton County, the median income for all workers aged 15 years and older, regardless of work hours, was $27,867 for males and $23,413 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $44,424 for males and $36,707 for females.
In Colleton County, the demographic landscape is diverse, spanning 5 distinct racial categories among households. Among these, Some Other Race households have the highest median household income at $70,428, while Black or African American households represent the opposite end with the lowest median household income of $33,660.
In 2022, the population of Colleton County was 38,599, a 0.45% increase year-by-year from 2021. Previously, in 2021, Colleton County's population was 38,427, a decline of 0.28% compared to a population of 38,536 in 2020.
The median age in Colleton County, SC is 42.2, as per 2021 ACS 5-Year Estimates. Of the total population, 18.65% were under the age of 15, 17.77% aged 15 to 29, 43.81% aged 30 to 64, 18.18% aged 65 to 84, and 1.59% were 85 years of age and older.
Racial distribution of Colleton County population: 56.74% are White, 35.92% are Black or African American, 0.90% are American Indian and Alaska Native, 0.51% are Asian, 2.87% are some other race and 3.07% are multiracial.