Somersworth, NH Demographics

A map of Somersworth's Population by Race

Somersworth, New Hampshire has an estimated population of 12,111, a slight increase from the 11,855 recorded in the 2020 Census. The population is 83.2% White, 6.0% Hispanic, 5.8% Multiracial, 2.6% Asian, 2.2% Black, and 0.3% Native American/Other. This demographic dot map shows the population of Somersworth, with one dot drawn for each person counted by the Census, color-coded by race.

Somersworth has become less racially diverse since the 2020 Census. It is considerably more diverse than New Hampshire overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Somersworth, that probability was 33.0% in 2020 and 29.9% in the most recent ACS estimates.

Somersworth is ranked the 13th most populous place in New Hampshire, out of 100 places. 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). Somersworth was ranked the 12th most populous place in the 2020 Census.

Somersworth's White Population

10,078 residents of Somersworth, or 83.2% of the population, identify as White. The share of White residents in Somersworth is slightly lower than in New Hampshire overall, where 86.9% of the population is White. Somersworth ranks 95th statewide in terms of White residents as a share of the population, out of 100 places.

Since the 2020 Census, Somersworth's White population has grown by an estimated 4.6%. White residents' share of Somersworth's population has increased from 81.2% to 83.2%.

Somersworth is less White than neighboring Berwick (91.2% White), Dover (85.3% White), South Berwick (90.6% White), Rochester (91.1% White), and Durham (86.2% White).

Somersworth's Black Population

263 residents of Somersworth, or 2.2% of the population, identify as Black. The share of Black residents in Somersworth is comparable to the share in New Hampshire overall, where 1.3% of the population is Black. Somersworth ranks 14th statewide in terms of Black residents as a share of the population, out of 100 places.

Since the 2020 Census, Somersworth's Black population has grown by an estimated 32.8%. Black residents' share of Somersworth's population has increased from 1.7% to 2.2%.

Somersworth is more Black than neighboring Berwick (0% Black), Dover (1.2% Black), South Berwick (0% Black), Rochester (1.1% Black), and Durham (0.2% Black).

Somersworth's Asian Population

309 residents of Somersworth, or 2.6% of the population, identify as Asian. The share of Asian residents in Somersworth is comparable to the share in New Hampshire overall, where 2.6% of the population is Asian. Somersworth ranks 4th statewide in terms of Asian residents as a share of the population, out of 100 places.

Since the 2020 Census, Somersworth's Asian population has declined by an estimated 64.3%. Asian residents' share of Somersworth's population has decreased from 7.3% to 2.6%.

Somersworth is more Asian than neighboring South Berwick (0.6% Asian), and Rochester (1.4% Asian). Somersworth is less Asian than neighboring Berwick (4.2% Asian), Dover (4.8% Asian), and Durham (4.5% Asian).

Somersworth's Hispanic Population

726 residents of Somersworth, or 6.0% of the population, identify as Hispanic. The share of Hispanic residents in Somersworth is comparable to the share in New Hampshire overall, where 4.7% of the population is Hispanic. Somersworth ranks 15th statewide in terms of Hispanic residents as a share of the population, out of 100 places.

Since the 2020 Census, Somersworth's Hispanic population has grown by an estimated 42.6%. Hispanic residents' share of Somersworth's population has increased from 4.3% to 6.0%.

Somersworth is more Hispanic than neighboring Berwick (3.3% Hispanic), Dover (3.5% Hispanic), South Berwick (2.7% Hispanic), Rochester (2.2% Hispanic), and Durham (5.4% Hispanic).

Somersworth's Native American/Other Population

36 residents of Somersworth, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Somersworth is comparable to the share in New Hampshire overall, where 0.5% of the population is Native American/Other. Somersworth ranks 24th statewide in terms of Native American/Other residents as a share of the population, out of 100 places.

Since the 2020 Census, Somersworth's Native American/Other population has declined by an estimated 60.4%. Native American/Other residents' share of Somersworth's population has decreased from 0.8% to 0.3%.

Somersworth is more Native American/Other than neighboring Berwick (0% Native American/Other), South Berwick (0% Native American/Other), Rochester (0.1% Native American/Other), and Durham (0.2% Native American/Other). Somersworth is less Native American/Other than neighboring Dover (0.7% Native American/Other).

Somersworth's Multiracial Population

699 residents of Somersworth, or 5.8% of the population, identify as Multiracial. The share of Multiracial residents in Somersworth is comparable to the share in New Hampshire overall, where 4% of the population is Multiracial. Somersworth ranks 22nd statewide in terms of Multiracial residents as a share of the population, out of 100 places.

Since the 2020 Census, Somersworth's Multiracial population has grown by an estimated 24.8%. Multiracial residents' share of Somersworth's population has increased from 4.7% to 5.8%.

Somersworth is more Multiracial than neighboring Berwick (1.3% Multiracial), Dover (4.5% Multiracial), Rochester (4% Multiracial), and Durham (3.5% Multiracial). Somersworth is less Multiracial than neighboring South Berwick (6.1% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.