Mamaroneck /məˈmærənɛk/ mə-MAIR-ə-nek is a village in Westchester County, New York, United States.

In the 1890s, the two areas surrounding the river were joined into one commercial village, Mamaroneck, which was incorporated in 1895.

[5] Along with the other shore communities of Westchester, Mamaroneck was at one time the location of summer residences for wealthy families from New York City.

Summer residence neighborhoods included Greenhaven, Orienta and Shore Acres.

The local railroad from New York City (now Metro-North) began to serve the village in 1848.

Other areas of the town include Heathcote Hill, overlooking the harbor, Harbor Heights (the heights) to the northeast, Old Rye Neck (settled in the 1880s), Rye Neck (settled in the 1920s and 1930s), Orienta, and Washingtonville, better known as "The Flats", due to the flat, low-lying topography of the area.

Mamaroneck Village residents represent more than 70 nationalities, including 30 from Europe, 20 from Latin America, seven from Asia and six from the Middle East, and five from Africa, according to the U.S. Census Bureau's American Community Survey for 2015–19, via the National Historical Geographic Information System (nhgis.org) and detailed on the Mamaroneck Historical Society's website.

Sixteen percent didn't report ancestry or their answer was unclassified in one of the groups the Census Bureau listed.

The combined volunteer fire companies respond to approximately 1,000 emergency calls annually.