Marlboro County, SC Population

Overview

26,912

Total Population

41.1

Median age

47.23%

Female population %

111.7:100

Gender ratio (M:F)

30-34 years

Largest age group

52.4

Total dependency ratio

Black or African American

Largest racial group

894

Hispanic population

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

TABLE OF CONTENTS

Age

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

The median age in Marlboro County is 41.1, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Marlboro County's population under 18 was 20.24%, compared to the 22.51% nationwide.
Marlboro County's elderly or the senior population (over 65 age) was 17.74% as compared to 16.04% nationwide.
Of the total population in Marlboro County, 16.65% were under the age of 15, 18.55% aged 15 to 29, 47.05% aged 30 to 64, 16.41% aged 65 to 84, and 1.33% were 85 years of age and older.

There are 1,490 less females than males in Marlboro County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 47.23% females and 52.77% males in Marlboro County, SC.
The Marlboro County, SC gender ratio is 111.7:100 i.e. 111.7 men to 100 women (1.117).
For male population, the largest age group is 30-34 years with a population of 1,299.
For the female population, the largest age group is 60-64 years with a population of 1,005.

Marlboro County's population has become increasingly diverse:

Racial distribution of Marlboro County population: 40.02% are White, 50.06% are Black or African American, 3% are American Indian and Alaska Native, 0.28% are Asian, 1.69% are some other race and 4.95% are multiracial.
Marlboro County's racial breakdown clearly shows that there is an absolute majority of Black or African American population in the county.
By ethnicity, 894 is Hispanic or Latino (of any race), and 26,018 (96.68% of the total population) is Non-Hispanic.
The largest racial group in Marlboro County is Black or African American with a population of 13,471 (50.06% of the total population).

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

The peak population was 29,033 in the year 2007
From 2000 to 2010, Marlboro County's population increased by 128 (0.44%), as compared to the national growth of 9.63%.
From 2010 to 2020, Marlboro County's population decreased by 2,437 (8.43%), 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, Marlboro County's population was lowest in year 2022 at 26,039.