Suffolk County Demographics

A map of Suffolk County's Population by Race

Suffolk County, Massachusetts had a population of 797,936 in 2020. It was 44.2% White, 17.0% Black, 10.1% Asian, 22.4% Hispanic, 1.6% Native American/Other, and 4.7% Multiracial. This map presents the population of Suffolk County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Suffolk County is the 4th most populous county of the 14 counties in Massachusetts.

Suffolk County's White Population

352,900 residents of Suffolk County identify as White, or 44.2%. This makes the White share of the population of Suffolk County considerably less than the White share of the population of Massachusetts (67.6% White). Of the 14 counties in Massachusetts, Suffolk County is ranked #14 in terms of White residents as a share of the population.

Suffolk County is less White than neighboring Norfolk County (70.6% White), Essex County (66.2% White), Middlesex County (66.5% White), Plymouth County (76.7% White), and Bristol County (76.9% White).

Suffolk County's Black Population

135,255 residents of Suffolk County identify as Black, or 17.0%. This makes the Black share of the population of Suffolk County slightly larger than the Black share of the population of Massachusetts (6.5% Black). Of the 14 counties in Massachusetts, Suffolk County is ranked #1 in terms of Black residents as a share of the population.

Suffolk County is more Black than neighboring Norfolk County (6.8% Black), Essex County (3.3% Black), Middlesex County (5% Black), Plymouth County (8.2% Black), and Bristol County (4% Black).

Suffolk County's Asian Population

80,607 residents of Suffolk County identify as Asian, or 10.1%. This makes the Asian share of the population of Suffolk County roughly similar to the Asian share of the population of Massachusetts (7.2% Asian). Of the 14 counties in Massachusetts, Suffolk County is ranked #3 in terms of Asian residents as a share of the population.

Suffolk County is more Asian than neighboring Essex County (3.6% Asian), Plymouth County (1.4% Asian), and Bristol County (2.4% Asian). Suffolk County is less Asian than neighboring Norfolk County (12.2% Asian), and Middlesex County (12.8% Asian).

Suffolk County's Hispanic Population

178,527 residents of Suffolk County identify as Hispanic, or 22.4%. This makes the Hispanic share of the population of Suffolk County slightly larger than the Hispanic share of the population of Massachusetts (12.6% Hispanic). Of the 14 counties in Massachusetts, Suffolk County is ranked #3 in terms of Hispanic residents as a share of the population.

Suffolk County is more Hispanic than neighboring Norfolk County (5.2% Hispanic), Middlesex County (8.8% Hispanic), Plymouth County (4.5% Hispanic), and Bristol County (9.5% Hispanic). Suffolk County is less Hispanic than neighboring Essex County (22.6% Hispanic).

Suffolk County's Native American/Other Population

13,130 residents of Suffolk County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.6%. This makes the Native American/Other share of the population of Suffolk 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, Suffolk County is ranked #6 in terms of Native American/Other residents as a share of the population.

Suffolk County is more Native American/Other than neighboring Norfolk County (1.1% Native American/Other), and Essex County (1% Native American/Other). Suffolk County is less Native American/Other than neighboring Middlesex County (1.8% Native American/Other), Plymouth County (2.4% Native American/Other), and Bristol County (1.7% Native American/Other).

Suffolk County's Multiracial Population

37,517 residents of Suffolk County identify as Multiracial, or 4.7%. This makes the Multiracial share of the population of Suffolk County roughly similar to the Multiracial share of the population of Massachusetts (4.7% Multiracial). Of the 14 counties in Massachusetts, Suffolk County is ranked #6 in terms of Multiracial residents as a share of the population.

Suffolk County is more Multiracial than neighboring Norfolk County (4.1% Multiracial), and Essex County (3.3% Multiracial). Suffolk County is less Multiracial than neighboring Middlesex County (5% Multiracial), Plymouth County (6.8% Multiracial), and Bristol County (5.6% Multiracial).

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