New Castle, IN Demographics
A map of New Castle's Population by Race
New Castle, Indiana has an estimated population of 17,367, a less than 1% change from the 17,396 recorded in the 2020 Census. The population is 89.2% White, 3.9% Multiracial, 3.5% Black, 2.2% Hispanic, 0.7% Asian, and 0.5% Native American/Other. This demographic dot map shows the population of New Castle, with one dot drawn for each person counted by the Census, color-coded by race.
New Castle has become more racially diverse since the 2020 Census. It is considerably less diverse than Indiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In New Castle, that probability was 16.7% in 2020 and 20.0% in the most recent ACS estimates.
New Castle is ranked the 52nd most populous place in Indiana, out of 976 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). New Castle was ranked the 51st most populous place in the 2020 Census.
New Castle's White Population
15,498 residents of New Castle, or 89.2% of the population, identify as White. The share of White residents in New Castle is considerably higher than in Indiana overall, where 75.4% of the population is White. New Castle ranks 394th statewide in terms of White residents as a share of the population, out of 976 places.
Since the 2020 Census, New Castle's White population has declined by an estimated 2.3%. White residents' share of New Castle's population has decreased from 91.2% to 89.2%.
New Castle is less White than neighboring Mount Summit (98% White), Spiceland (99.5% White), Greensboro (100% White), Sulphur Springs (98.2% White), and Lewisville (91.5% White).
New Castle's Black Population
607 residents of New Castle, or 3.5% of the population, identify as Black. The share of Black residents in New Castle is lower than in Indiana overall, where 9.1% of the population is Black. New Castle ranks 135th statewide in terms of Black residents as a share of the population, out of 976 places.
Since the 2020 Census, New Castle's Black population has grown by an estimated 99.0%. Black residents' share of New Castle's population has increased from 1.8% to 3.5%.
New Castle is more Black than neighboring Mount Summit (0% Black), Spiceland (0% Black), Greensboro (0% Black), Sulphur Springs (0% Black), and Lewisville (0% Black).
New Castle's Asian Population
116 residents of New Castle, or 0.7% of the population, identify as Asian. The share of Asian residents in New Castle is comparable to the share in Indiana overall, where 2.6% of the population is Asian. New Castle ranks 280th statewide in terms of Asian residents as a share of the population, out of 976 places.
Since the 2020 Census, New Castle's Asian population has grown by an estimated 36.5%. Asian residents' share of New Castle's population has remained roughly unchanged at 0.7%.
New Castle is more Asian than neighboring Mount Summit (0% Asian), Spiceland (0% Asian), Greensboro (0% Asian), Sulphur Springs (0% Asian), and Lewisville (0% Asian).
New Castle's Hispanic Population
380 residents of New Castle, or 2.2% of the population, identify as Hispanic. The share of Hispanic residents in New Castle is lower than in Indiana overall, where 8.6% of the population is Hispanic. New Castle ranks 376th statewide in terms of Hispanic residents as a share of the population, out of 976 places.
Since the 2020 Census, New Castle's Hispanic population has declined by an estimated 13.4%. Hispanic residents' share of New Castle's population has remained roughly unchanged at 2.2%.
New Castle is more Hispanic than neighboring Mount Summit (0.8% Hispanic), Spiceland (0.1% Hispanic), Greensboro (0% Hispanic), and Sulphur Springs (1.5% Hispanic). New Castle is less Hispanic than neighboring Lewisville (4.6% Hispanic).
New Castle's Native American/Other Population
88 residents of New Castle, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in New Castle is comparable to the share in Indiana overall, where 0.5% of the population is Native American/Other. New Castle ranks 262nd statewide in terms of Native American/Other residents as a share of the population, out of 976 places.
Since the 2020 Census, New Castle's Native American/Other population has declined by an estimated 4.3%. Native American/Other residents' share of New Castle's population has remained roughly unchanged at 0.5%.
New Castle is more Native American/Other than neighboring Mount Summit (0% Native American/Other), Spiceland (0% Native American/Other), Greensboro (0% Native American/Other), Sulphur Springs (0% Native American/Other), and Lewisville (0% Native American/Other).
New Castle's Multiracial Population
678 residents of New Castle, or 3.9% of the population, identify as Multiracial. The share of Multiracial residents in New Castle is comparable to the share in Indiana overall, where 3.8% of the population is Multiracial. New Castle ranks 337th statewide in terms of Multiracial residents as a share of the population, out of 976 places.
Since the 2020 Census, New Castle's Multiracial population has grown by an estimated 9.9%. Multiracial residents' share of New Castle's population has remained roughly unchanged at 3.9%.
New Castle is more Multiracial than neighboring Mount Summit (1.1% Multiracial), Spiceland (0.4% Multiracial), Greensboro (0% Multiracial), and Sulphur Springs (0.2% 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.