Arnold, PA Demographics

A map of Arnold's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	3,061	3,090	65.1%	64.8%
Black	1,246	1,094	26.5%	22.9%
Multiracial	180	408	3.8%	8.5%
Hispanic	160	94	3.4%	2.0%
Native American/Other	57	63	1.2%	1.3%
Asian	0	23	0.0%	0.5%

Arnold, Pennsylvania has an estimated population of 4,704, a slight decrease from the 4,772 recorded in the 2020 Census. The population is 65.1% White, 26.5% Black, 3.8% Multiracial, 3.4% Hispanic, 1.2% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Arnold, with one dot drawn for each person counted by the Census, color-coded by race.

Arnold has become less racially diverse since the 2020 Census. It is considerably more 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 Arnold, that probability was 52.0% in 2020 and 50.4% in the most recent ACS estimates.

Arnold is ranked the 295th 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). Arnold was ranked the 288th most populous place in the 2020 Census.

Arnold's White Population

3,061 residents of Arnold, or 65.1% of the population, identify as White. The share of White residents in Arnold is lower than in Pennsylvania overall, where 73% of the population is White. Arnold ranks 1763rd statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Arnold's White population has remained roughly the same. White residents' share of Arnold's population has remained roughly unchanged at 65.1%.

Arnold is less White than neighboring New Kensington (82.5% White), Tarentum (87.4% White), Brackenridge (86.2% White), Springdale (96.7% White), and Harwick (94% White).

Arnold's Black Population

1,246 residents of Arnold, or 26.5% of the population, identify as Black. The share of Black residents in Arnold is significantly higher than in Pennsylvania overall, where 10.3% of the population is Black. Arnold ranks 56th statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Arnold's Black population has grown by an estimated 13.9%. Black residents' share of Arnold's population has increased from 22.9% to 26.5%.

Arnold is more Black than neighboring New Kensington (8.6% Black), Tarentum (8.3% Black), Brackenridge (9.1% Black), Springdale (0.4% Black), and Harwick (0% Black).

Arnold's Asian Population

0 residents of Arnold, or 0.0% of the population, identify as Asian. The share of Asian residents in Arnold is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. Arnold ranks 954th statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Arnold's Asian population has declined by an estimated 100.0%. Asian residents' share of Arnold's population has decreased from 0.5% to 0.0%.

Arnold is less Asian than neighboring New Kensington (0.1% Asian), Tarentum (0.2% Asian), and Harwick (1.8% Asian).

Arnold's Hispanic Population

160 residents of Arnold, or 3.4% of the population, identify as Hispanic. The share of Hispanic residents in Arnold is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. Arnold ranks 1051st statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Arnold's Hispanic population has grown by an estimated 70.2%. Hispanic residents' share of Arnold's population has increased from 2.0% to 3.4%.

Arnold is more Hispanic than neighboring New Kensington (2.7% Hispanic), Tarentum (2% Hispanic), Brackenridge (2.3% Hispanic), Springdale (1.6% Hispanic), and Harwick (2.1% Hispanic).

Arnold's Native American/Other Population

57 residents of Arnold, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Arnold is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. Arnold ranks 74th statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Arnold's Native American/Other population has declined by an estimated 9.5%. Native American/Other residents' share of Arnold's population has remained roughly unchanged at 1.2%.

Arnold is more Native American/Other than neighboring New Kensington (0.7% Native American/Other), Tarentum (0% Native American/Other), Brackenridge (0% Native American/Other), Springdale (0.4% Native American/Other), and Harwick (0% Native American/Other).

Arnold's Multiracial Population

180 residents of Arnold, or 3.8% of the population, identify as Multiracial. The share of Multiracial residents in Arnold is comparable to the share in Pennsylvania overall, where 3.6% of the population is Multiracial. Arnold ranks 29th statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, Arnold's Multiracial population has declined by an estimated 55.9%. Multiracial residents' share of Arnold's population has decreased from 8.5% to 3.8%.

Arnold is more Multiracial than neighboring Tarentum (2.2% Multiracial), Brackenridge (2.4% Multiracial), Springdale (1% Multiracial), and Harwick (2.1% Multiracial). Arnold is less Multiracial than neighboring New Kensington (5.4% 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.