New Castle

County:: Westchester County
County Seat:: No
Area (mi²):: 23.098
State:: New York

New Castle is located in Westchester County, New York. New Castle has a 2025 population of 17,522. New Castle is currently declining at a rate of -0.55% annually and its population has decreased by -3.97% since the most recent census, which recorded a population of 18,247 in 2020.

The average household income in New Castle is $344,457 with a poverty rate of 2.53%.The median age in New Castle is 42.9 years: 44.1 years for males, and 41.8 years for females.

Demographics

The racial composition of New Castle includes 76.33% White, 9.34% Asian, 3.19% Black or African American, 3.08% other race, and smaller percentages for Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	13,748	76.33%
Asian	1,682	9.34%
Two or more races	1,451	8.06%
Black or African American	574	3.19%
Other race	554	3.08%
Native Hawaiian or Pacific Islander	3	0.02%

New Castle Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

New Castle's average per capita income is $120,625. Household income levels show a median of $244,375. The poverty rate stands at 2.53%.

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
Families	$250,001	$358,540
Married Families	$250,001	-
Households	$244,375	$344,457
Non Families	$151,397	$216,070

$120,625

Average Income

$244,375

Median Household Income

2.53%

Poverty Rate