Larchmont is a village located within the Town of Mamaroneck in Westchester County, New York, approximately 18 miles (29 km) northeast of Midtown Manhattan. The population of the village was 5,864 at the 2010 census. In February 2019, Bloomberg ranked Larchmont as the 15th wealthiest place in the United States, and the third wealthiest in New York. In July 2005, CNN/Money and Money magazine ranked Larchmont 11th on its list of the 100 Best Places to Live in the United States.
Larchmont is located at 40°55′34″N 73°45′11″W / 40.92611°N 73.75306°W / 40.92611; -73.75306 (40.926201, −73.753108), about 18 miles (29 km) from midtown Manhattan.
According to the United States Census Bureau, the village has a total area of 1.1 square miles (2.8 km), all of it land.
A source of confusion for non-locals is that a large portion of the area served by the Larchmont Post Office (zip code 10538) is actually not in the incorporated Village of Larchmont, but is part of the “unincorporated area” of the Town of Mamaroneck.
As of the census of 2000, there were 6,485 people, 2,418 households, and 1,709 families residing in the village. The population density was 6,073.6 people per square mile (2,340.1/km2). There were 2,470 housing units at an average density of 2,313.3 per square mile (891.3/km2). The racial makeup of the village was 92% White, 2% African American, 0.09% Native American, 2.82% Asian, 0.08% Pacific Islander, 0.77% from other races, and 1.33% from two or more races. Hispanic or Latino of any race were 4.97% of the population.
There were 2,418 households out of which 38.8% had children under the age of 18 living with them, 62.6% were married couples living together, 6.3% had a female householder with no husband present, and 29.3% were non-families. 25.8% of all households were made up of individuals and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.25.
In the village, the population was spread out with 29.3% under the age of 18, 3.9% from 18 to 24, 30.1% from 25 to 44, 23.7% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 90.7 males. For every 100 females age 18 and over, there were 85.5 males.
According to a 2009 estimate, the median income for a household in the village was $165,375, and the median income for a family was $204,695. The per capita income for the village was $109,664. About 1.6% of families and 2.3% of the population were below the poverty line, including 1.5% of those under age 18 and 5.1% of those age 65 or over.