New Castle County Demographics
A map of New Castle County's Population by Race
Race | Population | Percent |
|---|---|---|
White | 303,265 | 53.1% |
Black | 142,388 | 24.9% |
Hispanic | 63,516 | 11.1% |
Asian | 35,022 | 6.1% |
Multiracial | 22,953 | 4.0% |
Native American/Other | 3,575 | 0.6% |
New Castle County, Delaware had a population of 570,719 in 2020. It was 53.1% White, 24.9% Black, 6.1% Asian, 11.1% Hispanic, 0.6% Native American/Other, and 4.0% Multiracial. This map presents the population of New Castle County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.
New Castle County is the most populous county of the 3 counties in Delaware.
New Castle County's White Population
303,265 residents of New Castle County identify as White, or 53.1%. This makes the White share of the population of New Castle County slightly less than the White share of the population of Delaware (58.6% White). Of the 3 counties in Delaware, New Castle County is ranked #3 in terms of White residents as a share of the population.
New Castle County is less White than neighboring Salem County (69.8% White), Cecil County (80.5% White), Chester County (75.9% White), Delaware County (63% White), and Kent County (57.7% White).
New Castle County's Black Population
142,388 residents of New Castle County identify as Black, or 24.9%. This makes the Black share of the population of New Castle County roughly similar to the Black share of the population of Delaware (21.5% Black). Of the 3 counties in Delaware, New Castle County is ranked #2 in terms of Black residents as a share of the population.
New Castle County is more Black than neighboring Salem County (14% Black), Cecil County (7.2% Black), Chester County (5.3% Black), and Delaware County (22% Black). New Castle County is less Black than neighboring Kent County (25.2% Black).
New Castle County's Asian Population
35,022 residents of New Castle County identify as Asian, or 6.1%. This makes the Asian share of the population of New Castle County roughly similar to the Asian share of the population of Delaware (4.3% Asian). Of the 3 counties in Delaware, New Castle County is ranked #1 in terms of Asian residents as a share of the population.
New Castle County is more Asian than neighboring Salem County (1% Asian), Cecil County (1.2% Asian), and Kent County (2.4% Asian). New Castle County is less Asian than neighboring Chester County (6.6% Asian), and Delaware County (6.3% Asian).
New Castle County's Hispanic Population
63,516 residents of New Castle County identify as Hispanic, or 11.1%. This makes the Hispanic share of the population of New Castle County roughly similar to the Hispanic share of the population of Delaware (10.5% Hispanic). Of the 3 counties in Delaware, New Castle County is ranked #2 in terms of Hispanic residents as a share of the population.
New Castle County is more Hispanic than neighboring Salem County (10.1% Hispanic), Cecil County (5.3% Hispanic), Chester County (8.1% Hispanic), Delaware County (4.6% Hispanic), and Kent County (7.7% Hispanic).
New Castle County's Native American/Other Population
3,575 residents of New Castle County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of New Castle County roughly similar to the Native American/Other share of the population of Delaware (0.8% Native American/Other). Of the 3 counties in Delaware, New Castle County is ranked #3 in terms of Native American/Other residents as a share of the population.
New Castle County is more Native American/Other than neighboring Chester County (0.5% Native American/Other). New Castle County is less Native American/Other than neighboring Salem County (0.7% Native American/Other), and Kent County (1.1% Native American/Other).
New Castle County's Multiracial Population
22,953 residents of New Castle County identify as Multiracial, or 4.0%. This makes the Multiracial share of the population of New Castle County roughly similar to the Multiracial share of the population of Delaware (4.3% Multiracial). Of the 3 counties in Delaware, New Castle County is ranked #2 in terms of Multiracial residents as a share of the population.
New Castle County is more Multiracial than neighboring Chester County (3.5% Multiracial), and Delaware County (3.5% Multiracial). New Castle County is less Multiracial than neighboring Salem County (4.4% Multiracial), Cecil County (5.2% Multiracial), and Kent County (6% Multiracial).
Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.