Save town Compare Needs More Love

Town guide

New Castle

A town of 18,022 people in Westchester County, New York

T Under 10 neighborsJoin New Castle →

Town hallWanted · be the first Main streetWanted · be the first The libraryWanted · be the first Add a photoStart the New Castle album

1

Now in New Castle

What’s happening this week

What’s happening in New Castle?＋

Ask Comment Event Photo

From your neighbors

What’s happening

Be the first to post in New Castle — introduce yourself, ask a question, or share what’s happening.

Weather

Coming up

Upcoming events

Nothing on the calendar yet

Put the next local happening — a market, a meeting, a concert — on the map.

Add an event →

Around town

Local news

Harckham’s $100K Funding Makes New Castle Playground Possible

The New York State Senate (.gov) · Jul 10, 2026

Headlines via Google News · Articles belong to their publishers.

2

Around town

The places and views that make it New Castle

Explore places →

The New Castle album

0 of 12 shotsNeighbors document New Castle together

Town hall＋ Add Main street＋ Add The library＋ Add A local park＋ Add A favorite spot＋ Add Then & now＋ Add

3

Know New Castle

The town at a glance, and the guide to how things work

Open the full guide →

About New Castle

Town in New York, United States

1791Established

18,311Population

23.5 sq miArea

561 ftElevation

New Castle is a town in Westchester County, New York, United States. The population was 18,311 in the 2020 United States census, an increase over 17,569 at the 2010 census. It includes the named hamlets of Chappaqua and Millwood, but residents and businesses in the Town of New Castle can also have a designated city address of Ossining, or Millwood (together commonly referred to as the "West End" of New Castle) as well as Chappaqua or even Mt. Kisco.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

How New Castle ranks

#1Highest income in NY #6Most remote workers in NY #4Best schools in NY All NY rankings →

Town numbers

ZIP codeSign in to add

Area code914

Famous people from New CastleWriters, athletes, leaders and more who were born in New Castle.Meet them →

Schools in New Castle

All 7 schools →

#4Best public schoolsof 484 in NY

DistrictCHAPPAQUA CENTRAL SCHOOL DISTRICTSchools7

ROARING BROOK SCHOOLElementary · Grades K–4 · 444 students WESTORCHARD SCHOOLElementary · Grades K–4 · 441 students DOUGLAS G GRAFFLIN SCHOOLElementary · Grades PK–4 · 415 students ROBERT E BELL SCHOOLMiddle · Grades 5–8 · 587 students SEVEN BRIDGES MIDDLE SCHOOLMiddle · Grades 5–8 · 500 students HORACE GREELEY HIGH SCHOOLHigh · Grades 9–12 · 1,122 students

School data from the U.S. Department of Education (NCES). Ratings are from neighbors.

Where New Castle is

Explore map →

Locator map of New Castle — Wikimedia Commons · Map: Rcsprinter123 · CC BY-SA 3.0

Location map

New York · NY · Westchester CountyTown boundary on OpenStreetMap →

Around town

Bordering towns

Explore map →

NEMount Kisco SWMount Pleasant NYorktown NSomers SChappaqua SENorth Castle NEBedford WOssining SEArmonk NWCortlandt

Compare side by side:New Castle vs Mount Kisco New Castle vs Mount Pleasant New Castle vs Yorktown New Castle vs Somers New Castle vs Chappaqua

How things work in New Castle

All explainers →

No one has written New Castle’s explainers yetKnow how one of these works here? Each explainer earns +10 karma.

Town hall & decisionsTrash, recycling & yard wasteUtilities & servicesStreets, parking & getting aroundSafety & preparednessSchools & learningParks, sports & recreationHealth & emergency care