New Castle Flag

New Castle

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 18,348 . New Castle is currently growing at a rate of 1.47% annually and its population has increased by 0.61% since the most recent census, which recorded a population of 18,237 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. For every 100 females there are 94.2 males.

18.3K
Total Population
794
Density (mi²)
266 1.47%
Growth

New Castle Population

New Castle Population

Data after 2023 is projected based on recent change

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

White (76.33%)

Asian (9.34%)

Two or more races (8.06%)

Black or African American (3.19%)

Other race (3.08%)

Native Hawaiian or Pacific Islander (0.02%)

Race
Population
Percentage (of total)
White13,74876.33%
Asian1,6829.34%
Two or more races1,4518.06%
Black or African American5743.19%
Other race5543.08%
Native Hawaiian or Pacific Islander30.02%

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 $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

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)