Population By Race and Ethnicity in New Castle County, DE in 2017

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2017, the 556,491 population of New Castle County, Delaware comprised of 55,525 people who identified as Hispanic (9.98%), and 500,966 people who identified as Non-Hispanic (90.02%).

Race: The White Alone population was the largest racial group in New Castle County, Delaware with a population of 363,769 (65.37%); Black or African American Alone population was the second largest racial group with a population of 143,984 (25.87%); and Asian Alone was the third largest racial group with a population of 31,405 (5.64%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in New Castle County, Delaware in 2017, with a population of 319,697 (57.45%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 136,852 (24.59%); and the third largest ethnic group was White Alone - Hispanic with a population of 44,072 (7.92%).

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 2017
Total Population:
Race in New Castle County, DE in 2017
Total Population:
Ethnicity in New Castle County, DE in 2017
Total Population:
Population By Race in New Castle , DE in 2017
Race Population Percentage
Black or African American Alone 143,984 25.87%
White Alone 363,769 65.37%
American Indian and Alaska Native Alone 2,576 0.46%
Asian Alone 31,405 5.64%
Native Hawaiian And Pacific Islander Alone 378 0.07%
Two Or More Races 14,379 2.58%
Population By Ethnicity in New Castle , DE in 2017
Ethnicity Population Percentage
Black or African American Alone - Hispanic 7,132 1.28%
White Alone - Hispanic 44,072 7.92%
American Indian and Alaska Native Alone - Hispanic 1,529 0.28%
Asian Alone - Hispanic 423 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 229 0.04%
Two Or More Races - Hispanic 2,140 0.39%
Black or African American Alone - Non Hispanic 136,852 24.59%
White Alone - Non Hispanic 319,697 57.45%
American Indian and Alaska Native Alone - Non Hispanic 1,047 0.19%
Asian Alone - Non Hispanic 30,982 5.57%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 149 0.03%
Two Or More Races - Non Hispanic 12,239 2.2%