Dorchester County, SC Population

Overview

160,180

Total Population

37.8

Median age

51.06%

Female population %

95.9:100

Gender ratio (M:F)

10-14 years

Largest age group

51.8

Total dependency ratio

White

Largest racial group

9,411

Hispanic population

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

TABLE OF CONTENTS

Age

Dorchester County's population is young compared to the rest of the country:

The median age in Dorchester County is 37.8, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Dorchester County's population under 18 was 24.49%, compared to the 22.51% nationwide.
Dorchester County's elderly or the senior population (over 65 age) was 14.05% as compared to 16.04% nationwide.
Of the total population in Dorchester County, 20.10% were under the age of 15, 18.88% aged 15 to 29, 46.98% aged 30 to 64, 12.75% aged 65 to 84, and 1.30% were 85 years of age and older.

There are 3,392 more females than males in Dorchester County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.06% females and 48.94% males in Dorchester County, SC.
The Dorchester County, SC gender ratio is 95.9:100 i.e. 95.9 men to 100 women (0.959).
For male population, the largest age group is 10-14 years with a population of 6,395.
For the female population, the largest age group is 5-9 years with a population of 5,955.

Dorchester County's population has become increasingly diverse:

Racial distribution of Dorchester County population: 65.41% are White, 24.84% are Black or African American, 0.26% are American Indian and Alaska Native, 1.96% are Asian, 0.62% are Native Hawaiian and other Pacific Islander, 2.32% are some other race and 4.59% are multiracial.
Dorchester County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 9,411 is Hispanic or Latino (of any race), and 150,769 (94.12% of the total population) is Non-Hispanic.
The largest racial group in Dorchester County is White with a population of 104,774 (65.41% of the total population).

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

The peak population was 166,133 in the year 2022
From 2000 to 2010, Dorchester County's population increased by 40,272 (41.63%), as compared to the national growth of 9.63%.
From 2010 to 2020, Dorchester County's population increased by 25,154 (18.36%), 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, Dorchester County's population was lowest in year 2000 at 96,733.