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, Native American and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Native American

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%
Native American	0	0%

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