Town · New York
Town of Mamaroneck, New York
Mamaroneck (town), town, in Westchester County, New York. Mamaroneck (town) had 31,479 residents on July 1, 2025 by the Census Bureau's estimate, down 0.9% since 2020; the 2020 Census counted 31,758 and the ACS 2020-2024 5-year estimates put it at 31,236 (±38). GEOID 3611944842.
Residents, July 2025 estimate
31,479
Census Bureau estimate (no margin published)
2020 Census count: 31,758 · ACS 2020-2024: 31,236 ±38
Median household income
$163,781
±$22,619 (90% margin)
New York: $85,974
Median home value
$1,076,700
±$64,610 (90% margin)
New York: $423,800
Median gross rent
$2,202
±$126 (90% margin)
New York: $1,621
Where is Mamaroneck (town) and what county is it in?
Mamaroneck (town) is a town in Westchester County, New York. It covers 6.7 square miles of land, 4,740 residents per square mile in 2020.
2 places lie inside the Town of Mamaroneck: Mamaroneck (village, 20,151 in 2020) and Larchmont (village, 6,630 in 2020).
Mamaroneck (town) is in the New York-Newark-Jersey City, NY-NJ metropolitan statistical area, which takes in 22 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Mamaroneck (town), and is it growing?
The Census Bureau estimates that 31,479 people lived in Mamaroneck (town) on July 1, 2025, down 0.9% since 2020, in line with New York (−1.0%). The 2020 Census counted 31,758 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 31,236 (±38).
| Measure | Mamaroneck (town) | Westchester County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 31,236±38 | 999,677 | +1,566 |
| Households | 11,684±440 | 372,883 | +953 |
| Average household size | 2.64±0.10 | 2.61 | no clear change |
| Housing units | 12,423±490 | 394,358 | +1,348 |
Mamaroneck (town)'s population since 2000
From 28,967 in 2000 to 31,479 in 2025: up 8.7%. The 2000, 2010 and 2020 figures are census counts, each for Mamaroneck (town) as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Mamaroneck (town)?
The median resident of Mamaroneck (town) is 40.4 years old; 25.5% are under 18 and 14.7% are 65 or older. The largest group is non-Hispanic white residents at 70.0%, then Hispanic or Latino residents (of any race) at 16.2%. 19.5% of residents were born outside the United States.
| Measure | Mamaroneck (town) | Westchester County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.4±1.4 | 41.8 | no clear change |
| Under 18 years | 25.5%±1.7 pts | 21.3% | – |
| 65 years and over | 14.7%±1.8 pts | 18.2% | – |
| Male | 49.3%±1.7 pts | 48.8% | – |
| Hispanic or Latino (any race) | 16.2%±3.9 pts | 27.4% | no clear change |
| White alone, not Hispanic | 70.0%±4.7 pts | 49.2% | no clear change |
| Black or African American alone, not Hispanic | 4.4%±2.2 pts | 12.7% | +2.8 pts |
| Asian alone, not Hispanic | 3.8%±1.1 pts | 6.2% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.1%±1.5 pts | 3.3% | – |
| Some other race alone, not Hispanic | 1.4%±1.0 pts | 1.2% | – |
| Born outside the United States | 19.5%±2.9 pts | 26.1% | no clear change |
| Speak a language other than English at home (age 5+) | 25.1%±4.6 pts | 34.8% | – |
| Civilian veterans (age 18+) | 2.0%±0.8 pts | 2.9% | – |
| With a disability | 7.6%±1.8 pts | 10.7% | – |
| No health insurance coverage | 4.5%±2.1 pts | 5.1% | no clear change |
| High school graduate or higher (age 25+) | 93.4%±2.9 pts | 89.4% | – |
| Bachelor's degree or higher (age 25+) | 70.5%±3.6 pts | 53.1% | no clear change |
| Graduate or professional degree (age 25+) | 38.3%±3.5 pts | 26.7% | – |
| Lived in the same house a year earlier | 89.2%±2.5 pts | 91.0% | – |
| Moved from another state in the past year | 2.2%±1.5 pts | 1.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Mamaroneck (town) earn?
Half of Mamaroneck (town)'s 11,684 households earn less than $163,781 a year (±$22,619), against $118,976 in Westchester County and $85,974 in New York. In 2015-2019 it was $168,771 in 2024 dollars; the margins of error cannot tell the two periods apart. 7.4% of residents live below the poverty line.
| Measure | Mamaroneck (town) | Westchester County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $163,781±$22,619 | $118,976 | no clear change |
| Mean household income | $311,187±$29,065 | $192,041 | – |
| Per capita income | $117,789±$10,035 | $72,705 | no clear change |
| People below the poverty line | 7.4%±2.6 pts | 9.0% | no clear change |
| Children under 18 below the poverty line | 8.0%±4.6 pts | 10.5% | – |
| Households receiving SNAP | 5.9%±3.4 pts | 9.4% | – |
| Households with a computer | 98.6%±1.2 pts | 96.3% | – |
| Households with a broadband subscription | 97.0%±2.4 pts | 93.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Mamaroneck (town)?
Owners occupy 66.9% of Mamaroneck (town)'s occupied homes and renters 33.1%. The median owner-occupied home is valued at $1,076,700 by its owner (±$64,610). The median renter pays $2,202 a month including utilities, and 51.1% of renters pay 35% or more of their income on rent.
| Measure | Mamaroneck (town) | Westchester County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $1,076,700±$64,610 | $663,200 | no clear change |
| Median gross rent | $2,202±$126 | $1,951 | no clear change |
| Renters paying 35% or more of income on rent | 51.1%±9.9 pts | 44.5% | +20.7 pts |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 | – |
| Owner-occupied homes | 66.9%±4.2 pts | 61.8% | −5.5 pts |
| Renter-occupied homes | 33.1%±4.2 pts | 38.2% | – |
| Housing units | 12,423±490 | 394,358 | +1,348 |
| Homeowner vacancy rate | 0.9%±1.2 pts | 0.8% | – |
| Rental vacancy rate | 5.0%±3.5 pts | 2.5% | – |
| Single-family detached homes | 48.8%±3.6 pts | 43.4% | – |
| Mobile homes | 0.0%±0.3 pts | 0.2% | – |
| Built 2020 or later | 0.7%±0.5 pts | 1.0% | – |
| Built 2010 to 2019 | 5.2%±1.6 pts | 4.2% | – |
| Built 1939 or earlier | 46.4%±4.5 pts | 27.5% | – |
| Households with no vehicle | 12.1%±4.3 pts | 14.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Mamaroneck (town) building?
Builders took permits for 2 new housing units in Mamaroneck (town) in 2025 (2 in single-family houses), 0.1 per 1,000 residents against 1.9 across New York.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Mamaroneck (town) work and get to work?
36.0% of Mamaroneck (town)'s workers drive alone and 27.3% work from home. The average trip to work takes 36.5 minutes. The unemployment rate in 2020-2024 averaged 5.2%.
| Measure | Mamaroneck (town) | Westchester County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.5%±3.1 pts | 65.1% | – |
| Unemployment rate | 5.2%±2.1 pts | 6.1% | no clear change |
| Drove alone to work | 36.0%±3.3 pts | 50.4% | – |
| Carpooled | 8.1%±2.8 pts | 7.1% | – |
| Public transportation | 22.6%±3.1 pts | 17.3% | – |
| Walked | 5.0%±3.2 pts | 3.7% | – |
| Worked from home | 27.3%±3.8 pts | 19.1% | +18.6 pts |
| Mean travel time to work | 36.5 min±3.0 | 34.6 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Mamaroneck (town)?
5 census tracts lie mostly in Mamaroneck (town) (2020 census blocks). Their median household incomes run from $104,615 (Tract 72) to $250,000 or more (Tract 69).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 72Westchester County | 6,643 | $104,615 |
| Tract 71Westchester County | 6,567 | $167,536 |
| Tract 70Westchester County | 6,411 | $227,308 |
| Tract 69Westchester County | 6,164 | $250,000 or more |
| Tract 73Westchester County | 5,451 | $115,500 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Mamaroneck (town)) · Census block assignment files
How does Mamaroneck (town) compare with other places in New York?
By the Census Bureau's July 2025 estimates, Mamaroneck (town) is the 334th-most populous of the 16,079 U.S. towns and townships that have one and the 46th-most populous of 924 in New York.
Mamaroneck (town) ranks 123rd of 1,623 places in New York with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 46th | 924 |
| Growth 2020-2025 (PEP) | 554th | 1,225 |
| Residents per square mile | 149th | 1,657 |
| Median household income | 123rd | 1,623 |
| Per capita income | 41st | 1,653 |
| Median home value | 62nd | 1,637 |
| Median gross rent | 206th | 1,515 |
| Poverty rate | 900th | 1,331 |
| Bachelor's degree or higher | 81st | 1,640 |
| Median age | 1,161st | 1,654 |
| Owner-occupied share | 1,261st | 1,639 |
| Work from home | 60th | 1,350 |
| Travel time to work | 164th | 1,652 |
Mamaroneck (town)'s figures with every place in New York (CSV)
Every place in New York, sortable · Compare Mamaroneck (town) with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Mamaroneck (town)?
8 of the 57 figures for Mamaroneck (town) on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Mamaroneck (town) are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.