Westchester County is located in the U.S. state of New York. It is the seventh most populous county in the State of New York and the most populous north of New York City. According to the 2020 United States Census, the county had a population of 1,004,456, its highest decennial count ever and an increase of 55,344 (5.8%) from the 949,113 counted in 2010. Located in the Hudson Valley, Westchester covers an area of 450 square miles (1,200 km2), consisting of six cities, 19 towns, and 23 villages. Established in 1683, Westchester was named after the city of Chester, England. The county seat is the city of White Plains, while the most populous municipality in the county is the city of Yonkers, with 211,569 residents per the 2020 U.S. Census.
Sleepy Hollow is a village in the town of Mount Pleasant, in Westchester County, New York, United States. The village is located on the east bank of the Hudson River, about 30 miles (48 km) north of New York City, and is served by the Philipse Manor stop on the Metro-North Hudson Line. To the south of Sleepy Hollow is the village of Tarrytown, and to the north and east are unincorporated parts of Mount Pleasant. The population of the village at the 2020 census was 9,986.
Briarcliff Manor is a suburban village in Westchester County, New York, 30 miles (50 km) north of New York City. It is on 5.9 square miles (15 km2) of land on the east bank of the Hudson River, geographically shared by the towns of Mount Pleasant and Ossining. Briarcliff Manor includes the communities of Scarborough and Chilmark, and is served by the Scarborough station of the Metro-North Railroad's Hudson Line. A section of the village, including buildings and homes covering 376 acres (152 ha), is part of the Scarborough Historic District and was listed on the National Register of Historic Places in 1984. The village motto is "A village between two rivers", reflecting Briarcliff Manor's location between the Hudson and Pocantico Rivers. Although the Pocantico is the primary boundary between Mount Pleasant and Ossining, since its incorporation the village has spread into Mount Pleasant.
Mount Pleasant is a town in Westchester County, New York, United States, in the New York metropolitan area. As of the 2020 census, the town population was 44,436. The hamlets of Valhalla, Hawthorne, Pocantico Hills, and Thornwood, and the villages of Pleasantville, Sleepy Hollow, and a small portion of Briarcliff Manor lie within the town.
Kykuit, known also as the John D. Rockefeller Estate, is a 40-room historic house museum in Pocantico Hills, a hamlet in the town of Mount Pleasant, New York 25 miles north of New York City. The house was built for oil tycoon and Rockefeller family patriarch John D. Rockefeller. Conceived largely by his son, John D. Rockefeller Jr., and enriched by the art collection of the third-generation scion, Governor of New York, and Vice President of the United States, Nelson Rockefeller, it was home to four generations of the family. The house is a National Historic Landmark owned by the National Trust for Historic Preservation, and tours are given by Historic Hudson Valley.
Northern Westchester refers to the upper portion of Westchester County, New York, a suburban area north of New York City. Lying north of Interstate 287/Cross Westchester Expressway, these communities are distinguished by distance from New York City and their more rural character from those of Southern Westchester. The area is notable for its general affluence and high degree of watershed for New York City, being home to two major collection reservoirs supplying drinking water to it, the New Croton and Kensico.
The New York and Putnam Railroad, nicknamed the Old Put, was a railroad line that operated between the Bronx and Brewster in New York State. It was in close proximity to the Hudson River Railroad and New York and Harlem Railroad. All three came under ownership of the New York Central system in 1894. The railroad was abandoned starting in 1958, and most of the former roadbed has been converted to rail trail use.
New York State Route 9A (NY 9A) is a state highway in the vicinity of New York City in the United States. Its southern terminus is at Battery Place near the northern end of the Brooklyn–Battery Tunnel in New York City, where it intersects with both the unsigned Interstate 478 (I-478) and FDR Drive. The northern terminus of NY 9A is at U.S. Route 9 (US 9) in Peekskill. It is predominantly an alternate route of US 9 between New York City and Peekskill; however, in New York City, it is a major route of its own as it runs along the West Side Highway and Henry Hudson Parkway. It is also one of only two signed New York State routes in Manhattan. In northern Westchester County, NY 9A follows the Briarcliff–Peekskill Parkway.
New York State Route 117 (NY 117) is a 15.57-mile (25.06 km) state highway in Westchester County, New York, in the United States. The southern terminus of the route is at an intersection with U.S. Route 9 (US 9) north of the village of Sleepy Hollow. The northern terminus is at an interchange with Interstate 684 (I-684) south of Katonah, a hamlet in the town of Bedford. NY 117 meets the Taconic State Parkway in Pleasantville and parallels the Saw Mill Parkway from Pleasantville to Bedford.
There are forty-five local police agencies in Westchester County, New York. As well as other county, state, and federal agencies responsible for protecting Westchester County, these agencies frequently work with one another and other agencies located in the surrounding counties and states as well as the NYPD. Current economic times has caused a few Westchester municipalities to consider consolidation of police services. The Westchester County Department of Public Safety started providing primary police services for the Town/Village of Mount Kisco in 2015.
Westchester County, New York, in the United States, contains 40 public school districts, 118 private schools and 14 colleges/universities. According to the 2018 rankings provided by the education website Niche, taking into account public comments, 28 of the top 100 school districts in New York State were located in Westchester County.
Historic Hudson Valley is a not-for-profit educational and historic preservation organization headquartered in Tarrytown, New York. The organization runs tours and events at five historic properties in Westchester County, in the lower Hudson River Valley.
Eastview is a business district and former hamlet in Mount Pleasant, Westchester County, New York, United States, located approximately 25 miles north of Midtown Manhattan. It was primarily residential, and had a post office, railroad station, and school. In the late 1920s, John D. Rockefeller Jr. purchased most of the hamlet's property and razed the buildings. The Hammond House, a National Register of Historic Places-listed farmhouse dating to the 1720s, is located in the district, on New York State Route 100C. Currently, dozens of commercial buildings have been developed in the area. The community is now most prominently known as the global headquarters for Regeneron Pharmaceuticals, which moved into a newly constructed campus in 2014.
New York State Route 448 (NY 448) is a 3.90-mile (6.28 km) long state highway in western Westchester County, New York, in the United States. The route begins in the village of Sleepy Hollow at U.S. Route 9 (US 9) and goes in a northeast direction through the Pocantico Hills community in Mount Pleasant. It ends at NY 117 in Mount Pleasant, near the junction of NY 117 with Saw Mill River Road and the Taconic State Parkway. From 1930 to November 1970, NY 448 was part of NY 117.
The Scarborough Historic District is a national historic district located in the suburban community of Scarborough-on-Hudson, in Briarcliff Manor, New York. The 376-acre (152 ha) district was added to the National Register of Historic Places in 1984, and contains seven historically and architecturally significant properties dating from the late 18th century to the early 20th century. Most of the properties are domestic, or used for education or religion. The most common architectural styles within the district are Mid-19th Century Revival and Late Victorian.
This is a list of the National Register of Historic Places listings in northern Westchester County, New York, excluding the city of Peekskill, which has its own list.
The Pocantico River is a nine-mile-long (14 km) tributary of the Hudson River in western central Westchester County, New York, United States. It rises from Echo Lake, in the town of New Castle south of the hamlet of Millwood, and flows generally southwest past Briarcliff Manor to its outlet at Sleepy Hollow. Portions of the towns of Mount Pleasant and Ossining are within its 16-square-mile (41 km2) watershed.
The history of Briarcliff Manor, a village in the county of Westchester, New York, can be traced back to the founding of a settlement between the Hudson and Pocantico Rivers in the 19th century. The area now known as Briarcliff Manor had seen human occupation since at least the Archaic period, but significant growth in the settlements that are now incorporated into the village did not occur until the Industrial Revolution. The village, which was incorporated with one square mile in 1902, has expanded primarily through annexation: of Scarborough in 1906 and from the town of Mount Pleasant in 1927.
Archville is a hamlet in Mount Pleasant in Westchester County, New York, United States. The hamlet consists of residences, businesses, and a fire station on Union Street, Arch Hill, and Requa Street, all abutting U.S. Route 9. Directly across Route 9 lies Rockwood Hall, part of the Rockefeller State Park Preserve. The volunteer Archville Fire Department serves the hamlet and surrounding area, from the Hudson River to Pocantico Lake and from the edge of Briarcliff Manor to the edge of Sleepy Hollow.
There are numerous nationally and locally designated historic sites and attractions in Westchester County. These include architecturally significant manors and estates, churches, cemeteries, farmhouses, African-American heritage sites, and underground railroad depots and waystations. There are sites from pre-Revolutionary and Revolutionary times, as well as battlegrounds. Westchester County also played an important role in the development of the modern suburb, and there are many associated heritage sites and museums.
