Population By Race and Ethnicity in New Castle County, DE in 2023

Updated on July 31, 2024.

Based on the US Census Vintage data estimates, in 2023, the 578,592 population of New Castle County, Delaware comprised of 68,806 people who identified as Hispanic (11.89%), and 509,786 people who identified as Non-Hispanic (88.11%).

Race: The White Alone population was the largest racial group in New Castle County, Delaware with a population of 359,449 (62.13%); Black or African American Alone population was the second largest racial group with a population of 160,987 (27.82%); and Asian Alone was the third largest racial group with a population of 37,137 (6.42%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in New Castle County, Delaware in 2023, with a population of 306,012 (52.89%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 151,384 (26.16%); and the third largest ethnic group was White Alone - Hispanic with a population of 53,437 (9.24%).

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 2023
Total Population:
Race in New Castle County, DE in 2023
Total Population:
Ethnicity in New Castle County, DE in 2023
Total Population:
Population By Race in New Castle , DE in 2023
Race Population Percentage
Black or African American Alone 160,987 27.82%
White Alone 359,449 62.13%
American Indian and Alaska Native Alone 3,018 0.52%
Asian Alone 37,137 6.42%
Native Hawaiian And Pacific Islander Alone 477 0.08%
Two Or More Races 17,524 3.03%
Population By Ethnicity in New Castle , DE in 2023
Ethnicity Population Percentage
Black or African American Alone - Hispanic 9,603 1.66%
White Alone - Hispanic 53,437 9.24%
American Indian and Alaska Native Alone - Hispanic 1,892 0.33%
Asian Alone - Hispanic 630 0.11%
Native Hawaiian And Pacific Islander Alone - Hispanic 325 0.06%
Two Or More Races - Hispanic 2,919 0.51%
Black or African American Alone - Non Hispanic 151,384 26.16%
White Alone - Non Hispanic 306,012 52.89%
American Indian and Alaska Native Alone - Non Hispanic 1,126 0.2%
Asian Alone - Non Hispanic 36,507 6.31%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 152 0.03%
Two Or More Races - Non Hispanic 14,605 2.52%