Barnstable County Demographics

A map of Barnstable County's Population by Race

Barnstable County, Massachusetts had a population of 228,996 in 2020. It was 85.0% White, 2.8% Black, 1.4% Asian, 3.5% Hispanic, 2.0% Native American/Other, and 5.4% Multiracial. This map presents the population of Barnstable County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Barnstable County is the 9th most populous county of the 14 counties in Massachusetts.

Barnstable County's White Population

194,561 residents of Barnstable County identify as White, or 85.0%. This makes the White share of the population of Barnstable County larger than the White share of the population of Massachusetts (67.6% White). Of the 14 counties in Massachusetts, Barnstable County is ranked #2 in terms of White residents as a share of the population.

Barnstable County is more White than neighboring Nantucket County (69.4% White), Plymouth County (76.7% White), Dukes County (78.8% White), Bristol County (76.9% White), and Suffolk County (44.2% White).

Barnstable County's Black Population

6,409 residents of Barnstable County identify as Black, or 2.8%. This makes the Black share of the population of Barnstable County roughly similar to the Black share of the population of Massachusetts (6.5% Black). Of the 14 counties in Massachusetts, Barnstable County is ranked #12 in terms of Black residents as a share of the population.

Barnstable County is less Black than neighboring Nantucket County (7.1% Black), Plymouth County (8.2% Black), Dukes County (3.9% Black), Bristol County (4% Black), and Suffolk County (17% Black).

Barnstable County's Asian Population

3,183 residents of Barnstable County identify as Asian, or 1.4%. This makes the Asian share of the population of Barnstable County slightly less than the Asian share of the population of Massachusetts (7.2% Asian). Of the 14 counties in Massachusetts, Barnstable County is ranked #13 in terms of Asian residents as a share of the population.

Barnstable County is more Asian than neighboring Dukes County (0.9% Asian). Barnstable County is less Asian than neighboring Nantucket County (1.8% Asian), Bristol County (2.4% Asian), and Suffolk County (10.1% Asian).

Barnstable County's Hispanic Population

7,908 residents of Barnstable County identify as Hispanic, or 3.5%. This makes the Hispanic share of the population of Barnstable County slightly less than the Hispanic share of the population of Massachusetts (12.6% Hispanic). Of the 14 counties in Massachusetts, Barnstable County is ranked #13 in terms of Hispanic residents as a share of the population.

Barnstable County is more Hispanic than neighboring Dukes County (2.6% Hispanic). Barnstable County is less Hispanic than neighboring Nantucket County (16.2% Hispanic), Plymouth County (4.5% Hispanic), Bristol County (9.5% Hispanic), and Suffolk County (22.4% Hispanic).

Barnstable County's Native American/Other Population

4,605 residents of Barnstable County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 2.0%. This makes the Native American/Other share of the population of Barnstable 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, Barnstable County is ranked #3 in terms of Native American/Other residents as a share of the population.

Barnstable County is more Native American/Other than neighboring Nantucket County (1.2% Native American/Other), Bristol County (1.7% Native American/Other), and Suffolk County (1.6% Native American/Other). Barnstable County is less Native American/Other than neighboring Plymouth County (2.4% Native American/Other), and Dukes County (4.4% Native American/Other).

Barnstable County's Multiracial Population

12,330 residents of Barnstable County identify as Multiracial, or 5.4%. This makes the Multiracial share of the population of Barnstable County roughly similar to the Multiracial share of the population of Massachusetts (4.7% Multiracial). Of the 14 counties in Massachusetts, Barnstable County is ranked #4 in terms of Multiracial residents as a share of the population.

Barnstable County is more Multiracial than neighboring Nantucket County (4.3% Multiracial), and Suffolk County (4.7% Multiracial). Barnstable County is less Multiracial than neighboring Plymouth County (6.8% Multiracial), Dukes County (9.4% Multiracial), and Bristol County (5.6% Multiracial).

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