Plum, PA Demographics

A map of Plum's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	24,290	24,184	90.9%	89.1%
Black	1,034	1,184	3.9%	4.4%
Multiracial	649	895	2.4%	3.3%
Asian	359	323	1.3%	1.2%
Hispanic	283	449	1.1%	1.7%
Native American/Other	108	109	0.4%	0.4%

Plum, Pennsylvania has an estimated population of 26,723, a slight decrease from the 27,144 recorded in the 2020 Census. The population is 90.9% White, 3.9% Black, 2.4% Multiracial, 1.3% Asian, 1.1% Hispanic, and 0.4% Native American/Other. This demographic dot map shows the population of Plum, with one dot drawn for each person counted by the Census, color-coded by race.

Plum has become 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 Plum, that probability was 20.3% in 2020 and 17.1% in the most recent ACS estimates.

Plum is ranked the 23rd 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). Plum was ranked the 23rd most populous place in the 2020 Census.

Plum's White Population

24,290 residents of Plum, or 90.9% of the population, identify as White. The share of White residents in Plum is significantly higher than in Pennsylvania overall, where 73% of the population is White. Plum ranks 1120th statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Plum's White population has remained roughly the same. White residents' share of Plum's population has increased from 89.1% to 90.9%.

Plum is more White than neighboring New Kensington (82.5% White), and Monroeville municipality (69.2% White). Plum is less White than neighboring Springdale (96.7% White), Cheswick (91.3% White), and Harwick (94% White).

Plum's Black Population

1,034 residents of Plum, or 3.9% of the population, identify as Black. The share of Black residents in Plum is lower than in Pennsylvania overall, where 10.3% of the population is Black. Plum ranks 340th statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Plum's Black population has declined by an estimated 12.7%. Black residents' share of Plum's population has decreased from 4.4% to 3.9%.

Plum is more Black than neighboring Springdale (0.4% Black), Cheswick (0.2% Black), and Harwick (0% Black). Plum is less Black than neighboring New Kensington (8.6% Black), and Monroeville municipality (15.3% Black).

Plum's Asian Population

359 residents of Plum, or 1.3% of the population, identify as Asian. The share of Asian residents in Plum is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Plum ranks 521st statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Plum's Asian population has grown by an estimated 11.1%. Asian residents' share of Plum's population has remained roughly unchanged at 1.3%.

Plum is more Asian than neighboring Springdale (0% Asian), Cheswick (0% Asian), and New Kensington (0.1% Asian). Plum is less Asian than neighboring Monroeville municipality (5.2% Asian), and Harwick (1.8% Asian).

Plum's Hispanic Population

283 residents of Plum, or 1.1% of the population, identify as Hispanic. The share of Hispanic residents in Plum is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Plum ranks 1168th statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Plum's Hispanic population has declined by an estimated 37.0%. Hispanic residents' share of Plum's population has decreased from 1.7% to 1.1%.

Plum is less Hispanic than neighboring Springdale (1.6% Hispanic), Cheswick (2.6% Hispanic), New Kensington (2.7% Hispanic), Monroeville municipality (4.7% Hispanic), and Harwick (2.1% Hispanic).

Plum's Native American/Other Population

108 residents of Plum, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Plum is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Plum ranks 856th statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Plum's Native American/Other population has remained roughly the same. Native American/Other residents' share of Plum's population has remained roughly unchanged at 0.4%.

Plum is more Native American/Other than neighboring Cheswick (0% Native American/Other), and Harwick (0% Native American/Other). Plum is less Native American/Other than neighboring New Kensington (0.7% Native American/Other).

Plum's Multiracial Population

649 residents of Plum, or 2.4% of the population, identify as Multiracial. The share of Multiracial residents in Plum is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Plum ranks 973rd statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Plum's Multiracial population has declined by an estimated 27.5%. Multiracial residents' share of Plum's population has decreased from 3.3% to 2.4%.

Plum is more Multiracial than neighboring Springdale (1% Multiracial), and Harwick (2.1% Multiracial). Plum is less Multiracial than neighboring Cheswick (6% Multiracial), New Kensington (5.4% Multiracial), and Monroeville municipality (5.1% 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.