| Place Name | Seaford |
| Place Type | Census Designated Place |
| ZIP Code(s) | 11783 |
| County | Nassau County |
| Area Code(s) | 516 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 15,251 |
| Population Growth Rate (2010-19) | -0.28% |
| Majority Ethnicity | White 89.33% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New York 2nd |
| State Assembly Districts | 14 |
| State Senate Districts | 8 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.33% |
| African American | 0.86% |
| Hispanic | 0.2% |
| Asian | 3.59% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.02% |