Portsmouth, NH Demographics

A map of Portsmouth's Population by Race

Portsmouth, New Hampshire had a population of 21,956 in 2020. It was 86.9% White, 1.0% Black, 4.6% Asian, 3.4% Hispanic, 0.6% Native American/Other, and 3.5% Multiracial. This map presents the population of Portsmouth, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 100 places in New Hampshire, Portsmouth is the 8th most populous. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs).

Portsmouth's White Population

19,085 residents of Portsmouth identify as White, or 86.9%. This makes the White share of the population of Portsmouth roughly similar to the White share of the population of New Hampshire (87.2% White). Of the 100 places in New Hampshire, Portsmouth is ranked #82 in terms of White residents as a share of the population.

Portsmouth is more White than neighboring Kittery (85% White). Portsmouth is less White than neighboring South Eliot (92.3% White), Kittery Point (92.3% White), Hampton (92.6% White), and Hampton Beach (92.4% White).

Portsmouth's Black Population

225 residents of Portsmouth identify as Black, or 1.0%. This makes the Black share of the population of Portsmouth roughly similar to the Black share of the population of New Hampshire (1.4% Black). Of the 100 places in New Hampshire, Portsmouth is ranked #28 in terms of Black residents as a share of the population.

Portsmouth is more Black than neighboring South Eliot (0.6% Black), Kittery Point (0.7% Black), Hampton (0.2% Black), and Hampton Beach (0.5% Black). Portsmouth is less Black than neighboring Kittery (1.7% Black).

Portsmouth's Asian Population

1,001 residents of Portsmouth identify as Asian, or 4.6%. This makes the Asian share of the population of Portsmouth roughly similar to the Asian share of the population of New Hampshire (2.6% Asian). Of the 100 places in New Hampshire, Portsmouth is ranked #8 in terms of Asian residents as a share of the population.

Portsmouth is more Asian than neighboring Kittery (1.2% Asian), South Eliot (0.8% Asian), Kittery Point (0.6% Asian), Hampton (1.6% Asian), and Hampton Beach (1% Asian).

Portsmouth's Hispanic Population

749 residents of Portsmouth identify as Hispanic, or 3.4%. This makes the Hispanic share of the population of Portsmouth roughly similar to the Hispanic share of the population of New Hampshire (4.3% Hispanic). Of the 100 places in New Hampshire, Portsmouth is ranked #25 in terms of Hispanic residents as a share of the population.

Portsmouth is more Hispanic than neighboring South Eliot (2.1% Hispanic), Kittery Point (3% Hispanic), Hampton (2.4% Hispanic), and Hampton Beach (2.8% Hispanic). Portsmouth is less Hispanic than neighboring Kittery (5.6% Hispanic).

Portsmouth's Native American/Other Population

121 residents of Portsmouth identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of Portsmouth roughly similar to the Native American/Other share of the population of New Hampshire (0.6% Native American/Other). Of the 100 places in New Hampshire, Portsmouth is ranked #40 in terms of Native American/Other residents as a share of the population.

Portsmouth is more Native American/Other than neighboring South Eliot (0.3% Native American/Other), Hampton (0.4% Native American/Other), and Hampton Beach (0.4% Native American/Other). Portsmouth is less Native American/Other than neighboring Kittery (1.1% Native American/Other), and Kittery Point (0.8% Native American/Other).

Portsmouth's Multiracial Population

775 residents of Portsmouth identify as Multiracial, or 3.5%. This makes the Multiracial share of the population of Portsmouth roughly similar to the Multiracial share of the population of New Hampshire (4% Multiracial). Of the 100 places in New Hampshire, Portsmouth is ranked #71 in terms of Multiracial residents as a share of the population.

Portsmouth is more Multiracial than neighboring Kittery Point (2.7% Multiracial), Hampton (2.8% Multiracial), and Hampton Beach (2.9% Multiracial). Portsmouth is less Multiracial than neighboring Kittery (5.3% Multiracial), and South Eliot (4% Multiracial).

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