Barnwell, South Carolina Population By Ethnicity in Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, among Barnwell, SC population of 20,589 people, 50.28% (10,352) identified their ethnicity as Non-Hispanic - White Alone, 42.67% (8,785) identified their ethnicity as Non-Hispanic - Black or African American Alone, and 3.10% (638) identified their ethnicity as Non-Hispanic - Two Or More Races.

The first chart below shows the population by ethnicity and the second chart shows the percentage of the population for each ethnicity. You can also find the information in a table below.

You can see similar information for other South Carolina counties and also for the state of South Carolina.

Barnwell, SC Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Non-Hispanic - Two or More Races
Hispanic - Some Other Race Alone
Non-Hispanic - Asian Alone
Hispanic - White Alone
Hispanic - Two or More Races
Percentage of Barnwell, SC Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Non-Hispanic - Two or More Races
Hispanic - Some Other Race Alone
Non-Hispanic - Asian Alone
Hispanic - White Alone
Hispanic - Two or More Races
Barnwell, SC Population By Ethnicity in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 10352 50.28
Non-Hispanic - Black or African American Alone 8785 42.67
Non-Hispanic - Two Or More Races 638 3.10
Hispanic - Some Other Race Alone 200 0.97
Non-Hispanic - Asian Alone 161 0.78
Hispanic - White Alone 141 0.69
Hispanic - Two Or More Races 118 0.57
Non-Hispanic - American Indian and Alaska Native Alone 61 0.30
Non-Hispanic - Some Other Race Alone 58 0.28
Hispanic - Black or African American Alone 40 0.19
Hispanic - American Indian and Alaska Native Alone 17 0.08
Non-Hispanic - Native Hawaiian And Pacific Islander Alone 14 0.07
Hispanic - Native Hawaiian And Pacific Islander Alone 4 0.02
Hispanic - Asian Alone 0 0.00