| Place Name | Westernville |
| Place Type | Census Designated Place |
| ZIP Code(s) | 13486 |
| County | Oneida County |
| Area Code(s) | 315,680 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 171 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Utica-Rome, NY |
| US Congressional District(s) | New York 22nd |
| State Assembly Districts | 118 |
| State Senate Districts | 47 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |