Dukes County Demographics

A map of Dukes County's Population by Race

Dukes County, Massachusetts had a population of 20,600 in 2020. It was 78.8% White, 3.9% Black, 0.9% Asian, 2.6% Hispanic, 4.4% Native American/Other, and 9.4% Multiracial. This map presents the population of Dukes County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Dukes County is the 13th most populous county of the 14 counties in Massachusetts.

Dukes County's White Population

16,230 residents of Dukes County identify as White, or 78.8%. This makes the White share of the population of Dukes County slightly larger than the White share of the population of Massachusetts (67.6% White). Of the 14 counties in Massachusetts, Dukes County is ranked #4 in terms of White residents as a share of the population.

Dukes County is more White than neighboring Bristol County (76.9% White), Nantucket County (69.4% White), and Plymouth County (76.7% White). Dukes County is less White than neighboring Newport County (82.8% White), and Barnstable County (85% White).

Dukes County's Black Population

795 residents of Dukes County identify as Black, or 3.9%. This makes the Black share of the population of Dukes County roughly similar to the Black share of the population of Massachusetts (6.5% Black). Of the 14 counties in Massachusetts, Dukes County is ranked #9 in terms of Black residents as a share of the population.

Dukes County is more Black than neighboring Newport County (3.1% Black), and Barnstable County (2.8% Black). Dukes County is less Black than neighboring Bristol County (4% Black), Nantucket County (7.1% Black), and Plymouth County (8.2% Black).

Dukes County's Asian Population

184 residents of Dukes County identify as Asian, or 0.9%. This makes the Asian share of the population of Dukes County slightly less than the Asian share of the population of Massachusetts (7.2% Asian). Of the 14 counties in Massachusetts, Dukes County is ranked #14 in terms of Asian residents as a share of the population.

Dukes County is less Asian than neighboring Bristol County (2.4% Asian), Nantucket County (1.8% Asian), Newport County (1.8% Asian), Plymouth County (1.4% Asian), and Barnstable County (1.4% Asian).

Dukes County's Hispanic Population

534 residents of Dukes County identify as Hispanic, or 2.6%. This makes the Hispanic share of the population of Dukes County slightly less than the Hispanic share of the population of Massachusetts (12.6% Hispanic). Of the 14 counties in Massachusetts, Dukes County is ranked #14 in terms of Hispanic residents as a share of the population.

Dukes County is less Hispanic than neighboring Bristol County (9.5% Hispanic), Nantucket County (16.2% Hispanic), Newport County (6.5% Hispanic), Plymouth County (4.5% Hispanic), and Barnstable County (3.5% Hispanic).

Dukes County's Native American/Other Population

912 residents of Dukes 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 Dukes County roughly similar to the Native American/Other share of the population of Massachusetts (1.5% Native American/Other). Of the 14 counties in Massachusetts, Dukes County is ranked #1 in terms of Native American/Other residents as a share of the population.

Dukes County is more Native American/Other than neighboring Bristol County (1.7% Native American/Other), Nantucket County (1.2% Native American/Other), Newport County (1.1% Native American/Other), Plymouth County (2.4% Native American/Other), and Barnstable County (2% Native American/Other).

Dukes County's Multiracial Population

1,945 residents of Dukes County identify as Multiracial, or 9.4%. This makes the Multiracial share of the population of Dukes County roughly similar to the Multiracial share of the population of Massachusetts (4.7% Multiracial). Of the 14 counties in Massachusetts, Dukes County is ranked #1 in terms of Multiracial residents as a share of the population.

Dukes County is more Multiracial than neighboring Bristol County (5.6% Multiracial), Nantucket County (4.3% Multiracial), Newport County (4.7% Multiracial), Plymouth County (6.8% Multiracial), and Barnstable County (5.4% Multiracial).

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