Portsmouth, OH Demographics

A map of Portsmouth's Population by Race

Portsmouth, Ohio has an estimated population of 17,728, a slight decrease from the 18,252 recorded in the 2020 Census. The population is 84.5% White, 6.2% Multiracial, 3.7% Hispanic, 3.5% Black, 1.3% Asian, and 0.8% Native American/Other. This demographic dot map shows the population of Portsmouth, with one dot drawn for each person counted by the Census, color-coded by race.

Portsmouth has become more racially diverse since the 2020 Census. It is considerably less diverse than Ohio overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Portsmouth, that probability was 25.4% in 2020 and 27.9% in the most recent ACS estimates.

Portsmouth is ranked the 106th most populous place in Ohio, out of 1,265 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). Portsmouth was ranked the 102nd most populous place in the 2020 Census.

Portsmouth's White Population

14,983 residents of Portsmouth, or 84.5% of the population, identify as White. The share of White residents in Portsmouth is higher than in Ohio overall, where 75.8% of the population is White. Portsmouth ranks 970th statewide in terms of White residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Portsmouth's White population has declined by an estimated 4.6%. White residents' share of Portsmouth's population has decreased from 86.0% to 84.5%.

Portsmouth is less White than neighboring New Boston (96.3% White), Rosemount (90.9% White), South Shore (93.8% White), Sciotodale (93.3% White), and West Portsmouth (95.2% White).

Portsmouth's Black Population

628 residents of Portsmouth, or 3.5% of the population, identify as Black. The share of Black residents in Portsmouth is lower than in Ohio overall, where 12% of the population is Black. Portsmouth ranks 179th statewide in terms of Black residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Portsmouth's Black population has declined by an estimated 36.3%. Black residents' share of Portsmouth's population has decreased from 5.4% to 3.5%.

Portsmouth is more Black than neighboring New Boston (1.8% Black), Rosemount (1.9% Black), South Shore (0.7% Black), Sciotodale (0% Black), and West Portsmouth (0% Black).

Portsmouth's Asian Population

232 residents of Portsmouth, or 1.3% of the population, identify as Asian. The share of Asian residents in Portsmouth is comparable to the share in Ohio overall, where 2.5% of the population is Asian. Portsmouth ranks 420th statewide in terms of Asian residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Portsmouth's Asian population has grown by an estimated 88.6%. Asian residents' share of Portsmouth's population has increased from 0.7% to 1.3%.

Portsmouth is more Asian than neighboring New Boston (0% Asian), Rosemount (0% Asian), South Shore (0% Asian), Sciotodale (0% Asian), and West Portsmouth (0% Asian).

Portsmouth's Hispanic Population

657 residents of Portsmouth, or 3.7% of the population, identify as Hispanic. The share of Hispanic residents in Portsmouth is comparable to the share in Ohio overall, where 4.8% of the population is Hispanic. Portsmouth ranks 483rd statewide in terms of Hispanic residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Portsmouth's Hispanic population has grown by an estimated 44.4%. Hispanic residents' share of Portsmouth's population has increased from 2.5% to 3.7%.

Portsmouth is more Hispanic than neighboring New Boston (0.2% Hispanic), Rosemount (0% Hispanic), South Shore (2.5% Hispanic), Sciotodale (0% Hispanic), and West Portsmouth (0% Hispanic).

Portsmouth's Native American/Other Population

135 residents of Portsmouth, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Portsmouth is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Portsmouth ranks 143rd statewide in terms of Native American/Other residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Portsmouth's Native American/Other population has declined by an estimated 26.2%. Native American/Other residents' share of Portsmouth's population has remained roughly unchanged at 0.8%.

Portsmouth is more Native American/Other than neighboring New Boston (0.3% Native American/Other), Rosemount (0% Native American/Other), and South Shore (0.2% Native American/Other). Portsmouth is less Native American/Other than neighboring Sciotodale (1.9% Native American/Other), and West Portsmouth (1.1% Native American/Other).

Portsmouth's Multiracial Population

1,093 residents of Portsmouth, or 6.2% of the population, identify as Multiracial. The share of Multiracial residents in Portsmouth is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Portsmouth ranks 444th statewide in terms of Multiracial residents as a share of the population, out of 1,265 places.

Since the 2020 Census, Portsmouth's Multiracial population has grown by an estimated 36.6%. Multiracial residents' share of Portsmouth's population has increased from 4.4% to 6.2%.

Portsmouth is more Multiracial than neighboring New Boston (1.4% Multiracial), South Shore (2.8% Multiracial), Sciotodale (4.8% Multiracial), and West Portsmouth (3.7% Multiracial). Portsmouth is less Multiracial than neighboring Rosemount (7.3% 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.