Mamaroneck, New York Demographics & Population 2026
During the 2020–2024 ACS period, Mamaroneck, New York had a total population of 19,826, the 90th largest village in New York, with a median household income of $120,000, which is 40% higher than the state average. The poverty rate is 10.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 40% above the state average — one of the wealthiest communities in New York.
Mamaroneck Quick Facts
How Mamaroneck Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 19,840 | 19,826 | -0.1% |
| Median household income | $125,459 | $120,000 | -4.4% |
| Median home value | $705,200 | $717,200 | +1.7% |
How Mamaroneck Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
Mamaroneck Rankings in New York
Explore New York Rankings
Other Cities in Westchester County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Yonkers | 209,978 | $83,549 | 13.8% | $501,600 |
| New Rochelle | 82,769 | $109,167 | 10.1% | $702,500 |
| Mount Vernon | 72,427 | $78,779 | 14.8% | $484,000 |
| White Plains | 60,666 | $110,763 | 11.2% | $620,800 |
| Port Chester | 31,102 | $92,222 | 12.9% | $582,600 |
| Harrison | 29,961 | $164,250 | 4.1% | $1,010,700 |
| Ossining | 26,950 | $103,573 | 8.6% | $449,100 |
| Peekskill | 25,625 | $85,954 | 11.9% | $395,600 |
| Eastchester | 20,491 | $157,202 | 4.8% | $790,100 |
| Scarsdale | 18,010 | $250,000+ | 2.9% | $1,800,700 |
Cities Similar to Mamaroneck
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Nanuet | 19,799 | $117,167 | $532,500 | 46.6% | 9.3% |
| Ronkonkoma | 18,709 | $121,673 | $489,100 | 33.5% | 3.3% |
| Holtsville | 19,344 | $133,679 | $520,600 | 34.8% | 4.1% |
| Lynbrook | 20,325 | $136,696 | $611,900 | 42.8% | 7.5% |
| North Bay Shore | 20,282 | $141,915 | $497,600 | 13.3% | 6.8% |
Population Overview
Mamaroneck is a small city located in New York, within Westchester County. The total population is 19,826. It ranks as the 90th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Mamaroneck is 40.3 years. This is 1% higher than the state median of 39.8 years.
Economy, Income & Housing
The median household income in Mamaroneck is $120,000. This is 40% higher than the state median of $85,974. It is also 49% higher than the national median of $80,734. The poverty rate stands at 10.7%. This is 24% lower than the state poverty rate of 14.0%. The unemployment rate is 4.1%. This is 36% lower than the state rate of 6.4%. The median home value is $717,200. Housing costs are 69% higher than the state median of $423,800. The home-value-to-income ratio is 6.0x. 56.8% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 54.4%.
Race & Ethnicity
The largest racial or ethnic group in Mamaroneck is White (non-Hispanic), making up 56.7% of the population. Hispanic or Latino residents account for 27.3%. The Black or African American population (4.8%) is well below the state average of 13.4%.
Education
56.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 41% higher than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 87.9%. Notably, 29.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Mamaroneck, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Mamaroneck, New York?
Mamaroneck, New York has a population of 19,826 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mamaroneck, NY?
The median household income in Mamaroneck is $120,000, which is 49% higher than the national median of $80,734.
What is the poverty rate in Mamaroneck, NY?
The poverty rate in Mamaroneck is 10.7%. This means approximately 2,085 residents live below the federal poverty line.
What is the racial makeup of Mamaroneck, New York?
Mamaroneck's population is 56.7% White, 4.8% Black, 27.3% Hispanic/Latino, and 5.8% Asian.
What is the median home value in Mamaroneck, NY?
The median home value in Mamaroneck is $717,200. The home-value-to-income ratio is 6.0x.
How educated is Mamaroneck, New York?
56.6% of adults (25+) in Mamaroneck hold a bachelor's degree or higher, and 29.0% hold a graduate or professional degree.