Hudson Valley
New Castle, New York
New Castle is a town in Westchester County, in New York's Hudson Valley region, home to about 18,500 people as of the 2020 census.
Historic estates, farm-to-table towns, and Hudson River art and mountains. New Castle sits in that part of the state.
- Type
- Town
- County
- Westchester
- Region
- Hudson Valley
- Population (2020)
- 18,311
Local Almanac
Notes in and around New Castle
Short, sourced notes tied to this place, its county, or nearby communities.
This place · History & Culture
New Castle Walks Greeley Ground in Chappaqua
New Castle's Chappaqua center keeps Horace Greeley farm memory near the restored house, woods, and railroad village pattern.
Read this note ->This place · The Outdoors
Teatown keeps Ossining-area nature close and specific
Teatown gives the Ossining-area map a lake, preserves, environmental education, and trails that make northern Westchester nature practical to visit.
Read this note ->Nearby · History & Culture
Mount Kisco Became Its Own Village-Town After the Railroad
Mount Kisco's unusual government shape starts with a railroad village that later separated from Bedford and New Castle.
Read this note ->Nearby · Cars & Driving
Mount Kisco Parking Has Permit and Meter Layers
Mount Kisco drivers should separate permit parking, meter rules, handicap permits, and enforcement hours before leaving a car downtown or near the station.
Read this note ->Nearby · History & Culture
Mount Pleasant Follows Pocantico Roads
Rockefeller State Park Preserve gives Mount Pleasant carriage roads, open fields, and Pocantico estate landscape in public view.
Read this note ->Nearby · History & Culture
Ossining Runs Along Stone, Water, and Hard History
The Old Croton Aqueduct and Sing Sing Prison Museum give Ossining visible links to waterworks, stonework, and civic history.
Read this note ->Nearby · The Outdoors
Kensico Dam Plaza turns water infrastructure into civic space
Kensico Dam Plaza gives central Westchester waterworks scale, public events, fitness space, and a county gathering ground.
Read this note ->Nearby · History & Culture
Stone Barns Makes Pocantico Hills Food Culture Visible
Stone Barns Center gives Westchester a working farm, food education, and a Pocantico Hills landscape tied to public programs and old estate ground.
Read this note ->Nearby · History & Culture
Jacob Burns Film Center gives Pleasantville a real arts address
Jacob Burns Film Center gives Pleasantville a nonprofit cinema and education center that makes film culture part of the village identity.
Read this note ->Property tax snapshot
Roughly $19–$26 per $1,000
Combined full-value rate — county + town/city + school district, per $1,000 of market value (FY2025). On a $300,000 home that's about $5,760–$7,883 a year before the STAR break.
A planning estimate, not a bill. Your exact rate depends on your school district and any village. Confirm with the assessor.
Statewide links
Statewide starting points.
Good to know
- • Your assessed value usually isn't your market value — ask for the equalization rate.
- • Register for STAR; new applicants generally receive a credit instead of an automatic exemption on the bill.
- • Outside the cities, check the well, the septic, and the FEMA flood map before you buy.
Nearby
Nearby places
Tax rates: NYS Dept of Taxation & Finance (ORPTS), Real Property Tax Rates and Levy Data by Municipality, data.ny.gov dataset iq85-sdzs. (FY2025). Population: U.S. Census 2020. Reviewed June 2026. Source data ->
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