| Place Name | Wyandanch |
| Place Type | Census Designated Place |
| ZIP Code(s) | 11798 |
| County | Suffolk County |
| Area Code(s) | 631,934 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 11,047 |
| Population Growth Rate (2010-19) | 11.53% |
| Majority Ethnicity | African American 55.43% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New York 2nd |
| State Assembly Districts | 11 |
| State Senate Districts | 4 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 9.83% |
| African American | 55.43% |
| Hispanic | 0.03% |
| Asian | 0.37% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 34.33% |