Mamaroneck (/məˈmærənɛk/ mə-MARR-ə-nek) is a town in Westchester County, New York, United States. The population was 31,758 at the 2020 census.^[1]

v t e Municipalities and communities of Westchester County, New York, United States
County seat: White Plains
Cities	Mount Vernon New Rochelle Peekskill Rye White Plains Yonkers
Towns	Bedford Cortlandt Eastchester Greenburgh Harrison Lewisboro Mamaroneck Mount Kisco Mount Pleasant New Castle North Castle North Salem Ossining Pelham Pound Ridge Rye Scarsdale Somers Yorktown
Villages	Ardsley Briarcliff Manor Bronxville Buchanan Croton-on-Hudson Dobbs Ferry Elmsford Harrison Hastings-on-Hudson Irvington Larchmont Mamaroneck Mount Kisco Ossining Pelham Pelham Manor Pleasantville Port Chester Rye Brook Scarsdale Sleepy Hollow Tarrytown Tuckahoe
CDPs	Armonk Bedford Bedford Hills Chappaqua Crompond Crugers Eastchester Fairview Golden's Bridge Greenville Hartsdale Hawthorne Heritage Hills Jefferson Valley–Yorktown Katonah Lake Mohegan Lincolndale Millwood Montrose Peach Lake‡ Scotts Corners Shenorock Shrub Oak Thornwood Valhalla Verplanck Yorktown Heights
Other hamlets	Archville Banksville Bedford Corners Cortlandt Manor Eastview Granite Springs Mount Airy Pocantico Hills Purchase Scarborough South Salem Sparta Waccabuc Wykagyl
Footnotes	‡This populated place also has portions in an adjacent county or counties

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