Population By Race and Ethnicity in New Castle County, DE in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 557,983 population of New Castle County, Delaware comprised of 57,162 people who identified as Hispanic (10.24%), and 500,821 people who identified as Non-Hispanic (89.76%).

Race: The White Alone population was the largest racial group in New Castle County, Delaware with a population of 361,686 (64.82%); Black or African American Alone population was the second largest racial group with a population of 146,008 (26.17%); and Asian Alone was the third largest racial group with a population of 32,327 (5.79%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in New Castle County, Delaware in 2018, with a population of 316,523 (56.73%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 138,600 (24.84%); and the third largest ethnic group was White Alone - Hispanic with a population of 45,163 (8.09%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in New Castle, Delaware.

You can find similar information for other Delaware counties, and for Delaware.

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Hispanics and Non Hispanics in New Castle County, DE in 2018
Total Population:557,983
89.76%10.24%
Non Hispanic (89.76%)
Hispanic (10.24%)
Race in New Castle County, DE in 2018
Total Population:557,983
64.82%26.17%
White Alone (64.82%)
Black or African American Alone (26.17%)
Asian Alone (5.79%)
Two or more races (2.66%)
American Indian and Alaska Native Alone (0.48%)
Native Hawaiian And Pacific Islander Alone (0.07%)
Ethnicity in New Castle County, DE in 2018
Total Population:557,983
56.73%24.84%8.09%
Non-Hispanic White Alone (56.73%)
Non-Hispanic Black or African American Alone (24.84%)
Hispanic White Alone (8.09%)
Non-Hispanic Asian Alone (5.71%)
All Other Ethnicities (2.37%)
Non-Hispanic Two or more races (2.26%)
Population By Race in New Castle , DE in 2018
Race
Population
Percentage
White Alone 361,686 64.82%
Black or African American Alone 146,008 26.17%
Asian Alone 32,327 5.79%
Two Or More Races 14,863 2.66%
American Indian and Alaska Native Alone 2,698 0.48%
Native Hawaiian And Pacific Islander Alone 401 0.07%
Population By Ethnicity in New Castle , DE in 2018
Ethnicity
Population
Percentage
White Alone - Non Hispanic 316,523 56.73%
Black or African American Alone - Non Hispanic 138,600 24.84%
White Alone - Hispanic 45,163 8.09%
Asian Alone - Non Hispanic 31,881 5.71%
Two Or More Races - Non Hispanic 12,593 2.26%
Black or African American Alone - Hispanic 7,408 1.33%
Two Or More Races - Hispanic 2,270 0.41%
American Indian and Alaska Native Alone - Hispanic 1,625 0.29%
American Indian and Alaska Native Alone - Non Hispanic 1,073 0.19%
Asian Alone - Hispanic 446 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 250 0.05%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 151 0.03%