South New Castle, PA Demographics

A map of South New Castle's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	652	594	91.6%	91.8%
Multiracial	44	36	6.2%	5.6%
Hispanic	9	5	1.3%	0.8%
Black	7	8	1.0%	1.2%
Asian	0	2	0.0%	0.3%
Native American/Other	0	2	0.0%	0.3%

South New Castle, Pennsylvania has an estimated population of 712, a large increase from the 647 recorded in the 2020 Census. The population is 91.6% White, 6.2% Multiracial, 1.3% Hispanic, 1.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of South New Castle, with one dot drawn for each person counted by the Census, color-coded by race.

South New Castle is about as racially diverse as it was in 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 South New Castle, that probability was 15.4% in 2020 and 15.7% in the most recent ACS estimates.

South New Castle is ranked the 1173rd 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). South New Castle was ranked the 1200th most populous place in the 2020 Census.

South New Castle's White Population

652 residents of South New Castle, or 91.6% of the population, identify as White. The share of White residents in South New Castle is significantly higher than in Pennsylvania overall, where 73% of the population is White. South New Castle ranks 878th statewide in terms of White residents as a share of the population, out of 2,002 places.

Since the 2020 Census, South New Castle's White population has grown by an estimated 9.8%. White residents' share of South New Castle's population has remained roughly unchanged at 91.6%.

South New Castle is more White than neighboring New Castle (75.7% White), Oakland CDP (Lawrence County) (85.6% White), and Oakwood (87.3% White). South New Castle is less White than neighboring West Pittsburg (97.7% White), and New Castle Northwest (97.8% White).

South New Castle's Black Population

7 residents of South New Castle, or 1.0% of the population, identify as Black. The share of Black residents in South New Castle is lower than in Pennsylvania overall, where 10.3% of the population is Black. South New Castle ranks 862nd statewide in terms of Black residents as a share of the population, out of 2,002 places.

Since the 2020 Census, South New Castle's Black population has declined by an estimated 12.5%. Black residents' share of South New Castle's population has remained roughly unchanged at 1.0%.

South New Castle is more Black than neighboring West Pittsburg (0% Black), and New Castle Northwest (0.1% Black). South New Castle is less Black than neighboring New Castle (10.8% Black), Oakland CDP (Lawrence County) (2.9% Black), and Oakwood (4.6% Black).

South New Castle's Asian Population

0 residents of South New Castle, or 0.0% of the population, identify as Asian. The share of Asian residents in South New Castle is slightly lower than in Pennsylvania overall, where 3.8% of the population is Asian. South New Castle ranks 1152nd statewide in terms of Asian residents as a share of the population, out of 2,002 places.

Since the 2020 Census, South New Castle's Asian population has declined by an estimated 100.0%. Asian residents' share of South New Castle's population has remained roughly unchanged at 0.0%.

South New Castle is less Asian than neighboring Oakwood (0.9% Asian).

South New Castle's Hispanic Population

9 residents of South New Castle, or 1.3% of the population, identify as Hispanic. The share of Hispanic residents in South New Castle is lower than in Pennsylvania overall, where 8.7% of the population is Hispanic. South New Castle ranks 1575th statewide in terms of Hispanic residents as a share of the population, out of 2,002 places.

Since the 2020 Census, South New Castle's Hispanic population has grown by an estimated 80.0%. Hispanic residents' share of South New Castle's population has increased from 0.8% to 1.3%.

South New Castle is more Hispanic than neighboring West Pittsburg (0.3% Hispanic). South New Castle is less Hispanic than neighboring New Castle (4.2% Hispanic), Oakland CDP (Lawrence County) (2.8% Hispanic), New Castle Northwest (2.1% Hispanic), and Oakwood (3.6% Hispanic).

South New Castle's Native American/Other Population

0 residents of South New Castle, 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 South New Castle is comparable to the share in Pennsylvania overall, where 0.6% of the population is Native American/Other. South New Castle ranks 1052nd statewide in terms of Native American/Other residents as a share of the population, out of 2,002 places.

Since the 2020 Census, South New Castle's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of South New Castle's population has remained roughly unchanged at 0.0%.

South New Castle is less Native American/Other than neighboring New Castle (0.7% Native American/Other), and West Pittsburg (0.4% Native American/Other).

South New Castle's Multiracial Population

44 residents of South New Castle, or 6.2% of the population, identify as Multiracial. The share of Multiracial residents in South New Castle is slightly higher than in Pennsylvania overall, where 3.6% of the population is Multiracial. South New Castle ranks 206th statewide in terms of Multiracial residents as a share of the population, out of 2,002 places.

Since the 2020 Census, South New Castle's Multiracial population has grown by an estimated 22.2%. Multiracial residents' share of South New Castle's population has increased from 5.6% to 6.2%.

South New Castle is more Multiracial than neighboring West Pittsburg (1.5% Multiracial), New Castle Northwest (0% Multiracial), and Oakwood (3.6% Multiracial). South New Castle is less Multiracial than neighboring New Castle (8.6% Multiracial), and Oakland CDP (Lawrence County) (8.7% 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.