Irwin, PA Demographics

A map of Irwin's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	3,407	3,545	88.9%	90.9%
Multiracial	249	152	6.5%	3.9%
Hispanic	88	46	2.3%	1.2%
Native American/Other	62	9	1.6%	0.2%
Black	25	92	0.7%	2.4%
Asian	0	58	0.0%	1.5%

Irwin, Pennsylvania has an estimated population of 3,831, a slight decrease from the 3,902 recorded in the 2020 Census. The population is 88.9% White, 6.5% Multiracial, 2.3% Hispanic, 1.6% Native American/Other, 0.7% Black, and 0.0% Asian. This demographic dot map shows the population of Irwin, with one dot drawn for each person counted by the Census, color-coded by race.

Irwin has become more 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 Irwin, that probability was 17.2% in 2020 and 20.4% in the most recent ACS estimates.

Irwin is ranked the 381st 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). Irwin was ranked the 367th most populous place in the 2020 Census.

Irwin's White Population

3,407 residents of Irwin, or 88.9% of the population, identify as White. The share of White residents in Irwin is significantly higher than in Pennsylvania overall, where 73% of the population is White. Irwin ranks 981st statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Irwin's White population has declined by an estimated 3.9%. White residents' share of Irwin's population has decreased from 90.9% to 88.9%.

Irwin is more White than neighboring Harrison City (66.7% White). Irwin is less White than neighboring North Irwin (93.6% White), Manor (96% White), Adamsburg (92.4% White), and Penn (93.4% White).

Irwin's Black Population

25 residents of Irwin, or 0.7% of the population, identify as Black. The share of Black residents in Irwin is lower than in Pennsylvania overall, where 10.3% of the population is Black. Irwin ranks 561st statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Irwin's Black population has declined by an estimated 72.8%. Black residents' share of Irwin's population has decreased from 2.4% to 0.7%.

Irwin is more Black than neighboring North Irwin (0% Black), Manor (0% Black), Adamsburg (0% Black), and Harrison City (0% Black). Irwin is less Black than neighboring Penn (1.3% Black).

Irwin's Asian Population

0 residents of Irwin, or 0.0% of the population, identify as Asian. The share of Asian residents in Irwin is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Irwin ranks 428th statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Irwin's Asian population has declined by an estimated 100.0%. Asian residents' share of Irwin's population has decreased from 1.5% to 0.0%.

Irwin is less Asian than neighboring Manor (0.4% Asian).

Irwin's Hispanic Population

88 residents of Irwin, or 2.3% of the population, identify as Hispanic. The share of Hispanic residents in Irwin is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Irwin ranks 1406th statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Irwin's Hispanic population has grown by an estimated 91.3%. Hispanic residents' share of Irwin's population has increased from 1.2% to 2.3%.

Irwin is more Hispanic than neighboring North Irwin (1.8% Hispanic), Penn (0% Hispanic), and Harrison City (0% Hispanic). Irwin is less Hispanic than neighboring Manor (3% Hispanic), and Adamsburg (2.5% Hispanic).

Irwin's Native American/Other Population

62 residents of Irwin, or 1.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Irwin is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Irwin ranks 1205th statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Irwin's Native American/Other population has grown by an estimated 588.9%. Native American/Other residents' share of Irwin's population has increased from 0.2% to 1.6%.

Irwin is more Native American/Other than neighboring North Irwin (0% Native American/Other), Manor (0.1% Native American/Other), Adamsburg (0% Native American/Other), Penn (0% Native American/Other), and Harrison City (0% Native American/Other).

Irwin's Multiracial Population

249 residents of Irwin, or 6.5% of the population, identify as Multiracial. The share of Multiracial residents in Irwin is slightly higher than in Pennsylvania overall, where 3.6% of the population is Multiracial. Irwin ranks 651st statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Irwin's Multiracial population has grown by an estimated 63.8%. Multiracial residents' share of Irwin's population has increased from 3.9% to 6.5%.

Irwin is more Multiracial than neighboring North Irwin (4.6% Multiracial), Manor (0.5% Multiracial), Adamsburg (5.1% Multiracial), and Penn (5.3% Multiracial). Irwin is less Multiracial than neighboring Harrison City (33.3% 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.