Population By Race and Ethnicity in New Castle County, DE in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 570,873 population of New Castle County, Delaware comprised of 61,709 people who identified as Hispanic (10.81%), and 509,164 people who identified as Non-Hispanic (89.19%).

Race: The White Alone population was the largest racial group in New Castle County, Delaware with a population of 364,580 (63.86%); Black or African American Alone population was the second largest racial group with a population of 152,524 (26.72%); and Asian Alone was the third largest racial group with a population of 34,442 (6.03%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in New Castle County, Delaware in 2020, with a population of 316,289 (55.4%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 144,185 (25.26%); and the third largest ethnic group was White Alone - Hispanic with a population of 48,291 (8.46%).

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 2020
Total Population:
Race in New Castle County, DE in 2020
Total Population:
Ethnicity in New Castle County, DE in 2020
Total Population:
Population By Race in New Castle , DE in 2020
Race Population Percentage
Black or African American Alone 152,524 26.72%
White Alone 364,580 63.86%
American Indian and Alaska Native Alone 2,901 0.51%
Asian Alone 34,442 6.03%
Native Hawaiian And Pacific Islander Alone 420 0.07%
Two Or More Races 16,006 2.8%
Population By Ethnicity in New Castle , DE in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 8,339 1.46%
White Alone - Hispanic 48,291 8.46%
American Indian and Alaska Native Alone - Hispanic 1,844 0.32%
Asian Alone - Hispanic 502 0.09%
Native Hawaiian And Pacific Islander Alone - Hispanic 272 0.05%
Two Or More Races - Hispanic 2,461 0.43%
Black or African American Alone - Non Hispanic 144,185 25.26%
White Alone - Non Hispanic 316,289 55.4%
American Indian and Alaska Native Alone - Non Hispanic 1,057 0.19%
Asian Alone - Non Hispanic 33,940 5.95%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 148 0.03%
Two Or More Races - Non Hispanic 13,545 2.37%