| Place Name | Thornwood |
| Place Type | Census Designated Place |
| ZIP Code(s) | 10594 |
| County | Westchester County |
| Area Code(s) | 914 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 4,157 |
| Population Growth Rate (2010-19) | 5.35% |
| Majority Ethnicity | White 83.96% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New York 17th |
| State Assembly Districts | 92 |
| State Senate Districts | 40 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 83.96% |
| African American | 1.85% |
| Hispanic | 0% |
| Asian | 4.21% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.98% |