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New Castle, New York
New Castle, New York 2016 334.jpg
Location of New Castle, New York
Location of New Castle, New York
Country United States
State New York
County Westchester
Founded 1791
 • Type Town
 • Total 23.53 sq mi (60.93 km2)
 • Land 23.16 sq mi (59.99 km2)
 • Water 0.36 sq mi (0.94 km2)
561 ft (171 m)
 • Total 17,569
 • Estimate 
 • Density 781.42/sq mi (301.70/km2)
Time zone UTC-5 (Eastern (EST))
 • Summer (DST) UTC-4 (EDT)
ZIP Codes
10510,10514, 10546, 10549, 10562
FIPS code 36-50078
GNIS feature ID 0979260

New Castle is a town in Westchester County, New York, United States. The population was 17,569 at the 2010 census. It includes the hamlets of Chappaqua and Millwood.


New Castle was originally inhabited by several Native American tribes, including the Siwanoy and the Wappinger. Portions of New Castle were initially purchased in 1640 by Nathaniel Turner from Ponas Sagamore, chief of the Siwanoy. In 1661, John Richbell purchased land, including all of present-day New Castle, from the Siwanoy. In 1696, Caleb Heathcote purchased that tract of land from Richbell's widow. What is present-day New Castle was originally incorporated as part of the town of North Castle, which was jokingly referred to as "the two saddlebags," in 1736. The first European settlers in the area were Quakers, who settled in present-day Chappaqua in 1753 and constructed a meeting house, which still stands today on Quaker Street. The town of New Castle broke away from North Castle in 1791.

New Castle has several locations on the National Register of Historic Places, including The Williams-DuBois House, Old Chappaqua Historic District, and Isaac Young House. Two buildings from Horace Greeley's former farm are also on the National Historic Register, including the Greeley House, which houses the headquarters for the New Castle Historical Society, and Rehoboth, the first concrete barn in the country.


Perhaps the most renowned area and hamlet of New Castle is Chappaqua. Both Chappaqua and New Castle became well known as the residence of Horace Greeley. More recently, Chappaqua and the Town of New Castle have attracted national attention as the home of Former U.S. President Bill Clinton and Former Secretary of State Hillary Clinton, who purchased a home on Old House Lane in Chappaqua in 1999 as they were preparing to leave the White House.


According to the United States Census Bureau, the town has a total area of 23.5 square miles (61 km2), of which 23.2 square miles (60 km2) is land and 0.3 square miles (0.78 km2), or 1.15%, is water. New Castle is bordered by the towns of Mount Pleasant and Ossining to the southwest and North Castle to the southeast. It is bordered by the towns of Bedford, Mount Kisco, and Somers to the northeast and Yorktown and Cortlandt to the northwest.


Historical population
Census Pop.
1820 1,368
1830 1,336 −2.3%
1840 1,529 14.4%
1850 1,800 17.7%
1860 1,817 0.9%
1870 2,152 18.4%
1880 2,297 6.7%
1890 2,110 −8.1%
1900 2,401 13.8%
1910 3,573 48.8%
1920 3,639 1.8%
1930 6,792 86.6%
1940 7,903 16.4%
1950 8,802 11.4%
1960 14,388 63.5%
1970 19,837 37.9%
1980 15,425 −22.2%
1990 16,648 7.9%
2000 17,491 5.1%
2010 17,569 0.4%
2016 (est.) 18,100 3.0%
U.S. Decennial Census

As of the census of 2000, there were 17,491 people, 5,732 households, and 4,929 families residing in the town. The population density was 754.8 people per square mile (291.5/km2). There were 5,843 housing units at an average density of 252.2 per square mile (97.4/km2). The racial makeup of the town was 91.50% White, 1.37% African American, 0.05% Native American, 5.55% Asian, 0.02% Pacific Islander, 0.51% from other races, and 1.00% from two or more races. Hispanic or Latino of any race were 2.78% of the population.

There were 5,732 households, out of which 49.6% had children under the age of 18 living with them, 79.0% were married couples living together, 5.3% had a female householder with no husband present, and 14.0% were non-families. 11.4% of all households were made up of individuals, and 4.6% had someone living alone who was 65 years of age or older. The average household size was 3.04 and the average family size was 3.28.

In the town, the population was spread out, with 31.9% under the age of 18, 3.6% from 18 to 24, 25.4% from 25 to 44, 29.9% from 45 to 64, and 9.2% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 97.8 males. For every 100 females age 18 and over, there were 92.2 males.

The median income for a household in the town was $159,691, and the median income for a family was $174,579. Males had a median income of $100,000 versus $67,275 for females. The per capita income for the town was $73,888. About 2.0% of families and 3.5% of the population were below the poverty line, including 4.6% of those under age 18 and 3.6% of those age 65 or over.

Communities and locations in New Castle

  • Chappaqua is the largest hamlet of New Castle. Its center is located in the southeastern part of the town, but most of the town falls under Chappaqua's ZIP code.
  • Millwood is another hamlet of New Castle, located in the northwest part of the town.
  • Mount Kisco was New Castle's only village, as per the guidelines of the State of New York. Half of the village was in the town of New Castle, the other half was in the town of Bedford. However, in 1972, the Town of Mount Kisco was formed, officially separating the village from New Castle. The Village of Mount Kisco is now coterminous with the Town of Mount Kisco, and has nothing to do with the towns of New Castle or Bedford.


The majority of the town is served by the Chappaqua Central School District, which consists of three elementary schools, two middle schools, and one high school. The elementary schools are Grafflin Elementary School, Roaring Brook Elementary School, and Westorchard Elementary School. The middle schools are Seven Bridges Middle School and Robert E. Bell Middle School, and the high school is Horace Greeley High School, named for newspaper editor, presidential candidate and New Castle resident Horace Greeley. Other parts of New Castle fall within the Byram Hills Central School District, Bedford Central School District, Yorktown Central School District, and the Ossining Union Free School District.

Notable residents

Notable people who live and have previously lived in New Castle include:

See also

Kids robot.svg In Spanish: New Castle (Nueva York) para niños

Black History Month on Kiddle
Famous African-American Inventors:
Shirley Ann Jackson
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