Williamsburg County, SC Population

Overview

31,279

Total Population

43.3

Median age

52.43%

Female population %

90.7:100

Gender ratio (M:F)

60-64 years

Largest age group

61.2

Total dependency ratio

Black or African American

Largest racial group

718

Hispanic population

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

TABLE OF CONTENTS

Age

Williamsburg County's population is old compared to the rest of the country:

The median age in Williamsburg County is 43.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Williamsburg County's population under 18 was 20.82%, compared to the 22.51% nationwide.
Williamsburg County's elderly or the senior population (over 65 age) was 21.14% as compared to 16.04% nationwide.
Of the total population in Williamsburg County, 16.81% were under the age of 15, 17.82% aged 15 to 29, 44.23% aged 30 to 64, 19.00% aged 65 to 84, and 2.15% were 85 years of age and older.

There are 1,519 more females than males in Williamsburg County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 52.43% females and 47.57% males in Williamsburg County, SC.
The Williamsburg County, SC gender ratio is 90.7:100 i.e. 90.7 men to 100 women (0.907).
For male population, the largest age group is 55-59 years with a population of 1,087.
For the female population, the largest age group is 60-64 years with a population of 1,624.

Williamsburg County's population has become increasingly diverse:

Racial distribution of Williamsburg County population: 32.07% are White, 64.37% are Black or African American, 0.44% are American Indian and Alaska Native, 0.64% are Asian, 1.75% are some other race and 0.73% are multiracial.
Williamsburg County's racial breakdown clearly shows that there is an absolute majority of Black or African American population in the county.
By ethnicity, 718 is Hispanic or Latino (of any race), and 30,561 (97.70% of the total population) is Non-Hispanic.
The largest racial group in Williamsburg County is Black or African American with a population of 20,133 (64.37% of the total population).

Williamsburg County's population has already reached its peak and is showing a trend of decline:

The peak population was 37,131 in the year 2000
From 2000 to 2010, Williamsburg County's population decreased by 2,789 (7.51%), as compared to the national growth of 9.63%.
From 2010 to 2020, Williamsburg County's population decreased by 3,434 (10.00%), 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, Williamsburg County's population was lowest in year 2022 at 30,058.