. Americans of Portuguese descent plurality shown in grey.
2020 census As of the
2020 census, the county had a population of 579,200. Of the residents, 20.3% were under the age of 18 and 17.8% were 65 years of age or older; the median age was 41.5 years. For every 100 females there were 94.1 males, and for every 100 females age 18 and over there were 91.8 males. 89.6% of residents lived in urban areas and 10.4% lived in rural areas. The racial makeup of the county was 78.7% White, 4.4%
Black or African American, 0.4%
American Indian and Alaska Native, 2.4%
Asian, 0.0%
Native Hawaiian and
Pacific Islander, 5.3% from some other race, and 8.8% from
two or more races.
Hispanic or Latino residents of any race comprised 9.5% of the population. The population density was . There were 230,535 housing units at an average density of . The
racial makeup of the county was 88.4% white, 3.3% black, 1.9% Asian, 0.4% American Indian, 3.4% from other races, and 2.6% from two or more races. Those of Hispanic or Latino origin made up 6.0% of the population. • 30.1% Portuguese • 19.2% Irish • 13.1% French • 12.5% English • 9.3% Italian • 5.7% French Canadian • 5.0% German • 4.5% Polish • 3.4% Puerto Rican • 3.3% Sub-Saharan African • 2.5% American • 2.0% Scottish • 1.4% Swedish • 1.3% Scotch-Irish • 1.0% Arab Of the 213,010 households, 32.6% had children under the age of 18 living with them, 47.5% were married couples living together, 14.0% had a female householder with no husband present, 33.6% were non-families, and 27.4% of households were made up of individuals. The average household size was 2.50 and the average family size was 3.06. The median age was 39.8 years.
2000 census At the
2000 census there were 534,678 people, 205,411 households, and 140,706 families in the county. The population density was . There were 216,918 housing units at an average density of . The
racial makeup of the county was 90.98%
White, 2.03%
Black or
African American, 0.24%
Native American, 1.26%
Asian, 0.03%
Pacific Islander, 3.12% from other races, and 2.34% from two or more races. 3.60% was
Hispanic or
Latino of any race. 29.7% were of
Portuguese, 13.0%
Irish, 8.9% French, 8.2% English, 6.8% Italian and 6.4%
French Canadian ancestry according to
Census 2000. 79.1% spoke English, 13.9% Portuguese, 2.9% Spanish and 1.6% French as their first language. The United States Census Bureau reported Bristol County as being one of two counties in the United States with a plurality of people of
Portuguese ancestry (the other being the contiguous
Bristol County, Rhode Island). Of the 205,411 households 33.00% had children under the age of 18 living with them, 51.60% were married couples living together, 13.00% had a female householder with no husband present, and 31.50% were non-families. Of all households 26.50% were one person and 11.00% were one person aged 65 or older. The average household size was 2.54 and the average family size was 3.08. The age distribution was 24.60% under the age of 18, 8.50% from 18 to 24, 30.50% from 25 to 44, 22.20% from 45 to 64, and 14.10% 65 or older. The median age was 37 years. For every 100 females, there were 92.40 males. For every 100 females age 18 and over, there were 88.50 males. The median household income was $43,496 and the median family income was $53,733. Males had a median income of $39,361 versus $27,516 for females. The per capita income for the county was $20,978. About 7.80% of families and 10.00% of the population were below the
poverty line, including 13.00% of those under age 18 and 12.00% of that age 65 or over.
Income breakdown by town The ranking of unincorporated communities that are included on the list are reflective if the census designated locations and villages were included as cities or towns. Data is from the 2007–2011 American Community Survey 5-Year Estimates. ==Politics and government==