St. Clair, PA Demographics

A map of St. Clair's Population by Race

St. Clair, Pennsylvania has an estimated population of 37, a large decrease from the 48 recorded in the 2020 Census. The population is 100.0% White, 0.0% Black, 0.0% Asian, 0.0% Hispanic, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of St. Clair, with one dot drawn for each person counted by the Census, color-coded by race.

St. Clair has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Pennsylvania overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In St. Clair, that probability was 21.9% in 2020 and 0.0% in the most recent ACS estimates.

St. Clair is ranked the 1964th most populous place in Pennsylvania, out of 2,002 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). St. Clair was ranked the 1860th most populous place in the 2020 Census.

St. Clair's White Population

37 residents of St. Clair, or 100.0% of the population, identify as White. The share of White residents in St. Clair is significantly higher than in Pennsylvania overall, where 73% of the population is White. St. Clair ranks 1253rd statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, St. Clair's White population has declined by an estimated 11.9%. White residents' share of St. Clair's population has increased from 87.5% to 100.0%.

St. Clair is more White than neighboring Williamsburg (95.7% White).

St. Clair's Black Population

0 residents of St. Clair, or 0.0% of the population, identify as Black. The share of Black residents in St. Clair is considerably lower than in Pennsylvania overall, where 10.3% of the population is Black. St. Clair ranks 1527th statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, St. Clair's Black population has grown from 0 to an estimated 0. Black residents' share of St. Clair's population has remained roughly unchanged at 0.0%.

St. Clair's Asian Population

0 residents of St. Clair, or 0.0% of the population, identify as Asian. The share of Asian residents in St. Clair is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. St. Clair ranks 1426th statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, St. Clair's Asian population has grown from 0 to an estimated 0. Asian residents' share of St. Clair's population has remained roughly unchanged at 0.0%.

St. Clair's Hispanic Population

0 residents of St. Clair, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in St. Clair is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. St. Clair ranks 1780th statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, St. Clair's Hispanic population has grown from 0 to an estimated 0. Hispanic residents' share of St. Clair's population has remained roughly unchanged at 0.0%.

St. Clair is less Hispanic than neighboring Williamsburg (0.9% Hispanic).

St. Clair's Native American/Other Population

0 residents of St. Clair, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in St. Clair is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. St. Clair ranks 1459th statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, St. Clair's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of St. Clair's population has remained roughly unchanged at 0.0%.

St. Clair's Multiracial Population

0 residents of St. Clair, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in St. Clair is slightly lower than in Pennsylvania overall, where 3.6% of the population is Multiracial. St. Clair ranks 4th statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, St. Clair's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of St. Clair's population has decreased from 12.5% to 0.0%.

St. Clair is less Multiracial than neighboring Williamsburg (3.4% 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.