| Place Name | Hannawa Falls |
| Place Type | Census Designated Place |
| ZIP Code(s) | 13625 13676 |
| County | Saint Lawrence County |
| Area Code(s) | 315,680 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,035 |
| Population Growth Rate (2010-19) | -6.43% |
| Majority Ethnicity | White 94.87% |
| Metro/Micro Stats Area | Ogdensburg-Massena, NY |
| US Congressional District(s) | New York 21st |
| State Assembly Districts | 118 |
| State Senate Districts | 45,47 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.87% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.13% |