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.

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