Marlboro County Demographics

A map of Marlboro County's Population by Race

Marlboro County, South Carolina had a population of 26,667 in 2020. It was 39.6% White, 49.9% Black, 0.4% Asian, 2.2% Hispanic, 4.4% Native American/Other, and 3.6% Multiracial. This map presents the population of Marlboro County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Marlboro County is the 35th most populous county of the 46 counties in South Carolina.

Marlboro County's White Population

10,556 residents of Marlboro County identify as White, or 39.6%. This makes the White share of the population of Marlboro County considerably less than the White share of the population of South Carolina (62.1% White). Of the 46 counties in South Carolina, Marlboro County is ranked #40 in terms of White residents as a share of the population.

Marlboro County is less White than neighboring Scotland County (41.7% White), Dillon County (45.9% White), Darlington County (53.8% White), Richmond County (55% White), and Chesterfield County (59.7% White).

Marlboro County's Black Population

13,302 residents of Marlboro County identify as Black, or 49.9%. This makes the Black share of the population of Marlboro County considerably larger than the Black share of the population of South Carolina (24.8% Black). Of the 46 counties in South Carolina, Marlboro County is ranked #9 in terms of Black residents as a share of the population.

Marlboro County is more Black than neighboring Scotland County (38.3% Black), Dillon County (44.9% Black), Darlington County (40.4% Black), Richmond County (29.7% Black), and Chesterfield County (30.4% Black).

Marlboro County's Asian Population

99 residents of Marlboro County identify as Asian, or 0.4%. This makes the Asian share of the population of Marlboro County roughly similar to the Asian share of the population of South Carolina (1.7% Asian). Of the 46 counties in South Carolina, Marlboro County is ranked #38 in terms of Asian residents as a share of the population.

Marlboro County is more Asian than neighboring Dillon County (0.2% Asian). Marlboro County is less Asian than neighboring Scotland County (1% Asian), Darlington County (0.5% Asian), Richmond County (0.8% Asian), and Chesterfield County (0.6% Asian).

Marlboro County's Hispanic Population

575 residents of Marlboro County identify as Hispanic, or 2.2%. This makes the Hispanic share of the population of Marlboro County roughly similar to the Hispanic share of the population of South Carolina (6.9% Hispanic). Of the 46 counties in South Carolina, Marlboro County is ranked #39 in terms of Hispanic residents as a share of the population.

Marlboro County is less Hispanic than neighboring Scotland County (3.2% Hispanic), Dillon County (3% Hispanic), Richmond County (7.2% Hispanic), and Chesterfield County (4.8% Hispanic).

Marlboro County's Native American/Other Population

1,176 residents of Marlboro County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 4.4%. This makes the Native American/Other share of the population of Marlboro County roughly similar to the Native American/Other share of the population of South Carolina (0.8% Native American/Other). Of the 46 counties in South Carolina, Marlboro County is ranked #1 in terms of Native American/Other residents as a share of the population.

Marlboro County is more Native American/Other than neighboring Dillon County (2.4% Native American/Other), Darlington County (0.4% Native American/Other), Richmond County (2.7% Native American/Other), and Chesterfield County (0.7% Native American/Other). Marlboro County is less Native American/Other than neighboring Scotland County (11.2% Native American/Other).

Marlboro County's Multiracial Population

959 residents of Marlboro County identify as Multiracial, or 3.6%. This makes the Multiracial share of the population of Marlboro County roughly similar to the Multiracial share of the population of South Carolina (3.7% Multiracial). Of the 46 counties in South Carolina, Marlboro County is ranked #17 in terms of Multiracial residents as a share of the population.

Marlboro County is more Multiracial than neighboring Dillon County (3.5% Multiracial), and Darlington County (2.8% Multiracial). Marlboro County is less Multiracial than neighboring Scotland County (4.6% Multiracial), Richmond County (4.6% Multiracial), and Chesterfield County (3.8% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.