Charleston County, SC Population

Overview

404,946

Total Population

38.4

Median age

51.41%

Female population %

94.5:100

Gender ratio (M:F)

30-34 years

Largest age group

49.6

Total dependency ratio

White

Largest racial group

21,493

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Charleston County's population is of same age compared to the rest of the country:

The median age in Charleston County is 38.4, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Charleston County's population under 18 was 19.68%, compared to the 22.51% nationwide.
Charleston County's elderly or the senior population (over 65 age) was 16.53% as compared to 16.04% nationwide.
Of the total population in Charleston County, 16.62% were under the age of 15, 19.83% aged 15 to 29, 47.03% aged 30 to 64, 14.62% aged 65 to 84, and 1.91% were 85 years of age and older.

There are 11,392 more females than males in Charleston County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.41% females and 48.59% males in Charleston County, SC.
The Charleston County, SC gender ratio is 94.5:100 i.e. 94.5 men to 100 women (0.945).
For male population, the largest age group is 30-34 years with a population of 16,519.
For the female population, the largest age group is 30-34 years with a population of 17,223.

Charleston County's population has become increasingly diverse:

Racial distribution of Charleston County population: 67.43% are White, 25.43% are Black or African American, 0.24% are American Indian and Alaska Native, 1.65% are Asian, 0.09% are Native Hawaiian and other Pacific Islander, 1.99% are some other race and 3.17% are multiracial.
Charleston County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 21,493 is Hispanic or Latino (of any race), and 383,453 (94.69% of the total population) is Non-Hispanic.
The largest racial group in Charleston County is White with a population of 273,058 (67.43% of the total population).

Charleston County's population has not reached its peak yet and is showing a trend of further growth:

The peak population was 419,279 in the year 2022
From 2000 to 2010, Charleston County's population increased by 40,034 (12.87%), as compared to the national growth of 9.63%.
From 2010 to 2020, Charleston County's population increased by 58,718 (16.73%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Charleston County's population was lowest in year 2000 at 310,964.