New Castle Flag

New Castle

County Seat:
No
Area (mi²):
3.478
State:
Delaware

New Castle is a city located in New Castle County, Delaware. New Castle has a 2025 population of 5,555. New Castle is currently growing at a rate of 0.05% annually and its population has increased by 0.27% since the most recent census, which recorded a population of 5,540 in 2020.

The average household income in New Castle is $102,684 with a poverty rate of 3.39%.The median age in New Castle is 46.4 years: 43.9 years for males, and 47.2 years for females.

5.6K
Total Population
1,597
Density (mi²)
3 0.05%
Growth

New Castle Population

New Castle Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of New Castle includes 64.76% White, 27.76% Black or African American, 3.95% other race, and smaller percentages for Two or more races, Asian and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White3,57464.76%
Black or African American1,53227.76%
Other race2183.95%
Two or more races1462.65%
Asian490.89%

New Castle Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

New Castle's average per capita income is $59,161. Household income levels show a median of $92,565. The poverty rate stands at 3.39%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$117,913-
Families$112,733$120,817
Households$92,565$102,684
Non Families$63,588$72,904

$59,161

Average Income

$92,565

Median Household Income

3.39%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)