| Place Name | Mamaroneck |
| Place Type | Village |
| ZIP Code(s) | 10543 |
| County | Westchester County |
| Area Code(s) | 914 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 18,932 |
| Population Growth Rate (2010-19) | 6.46% |
| Majority Ethnicity | White 67.18% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New York 16th |
| State Assembly Districts | 91 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 67.18% |
| African American | 3.15% |
| Hispanic | 0.51% |
| Asian | 3.99% |
| Native American | 0.09% |
| Hawaiin/Pacific Islander | 25.08% |