| Place Name | Denning |
| Place Type | Town |
| County | Ulster County |
| Area Code(s) | 845 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 420 |
| Majority Ethnicity | White 97.82% |
| Metro/Micro Stats Area | Kingston, NY |
| US Congressional District(s) | New York 19th |
| State Assembly Districts | 101 |
| State Senate Districts | 42 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.82% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0.73% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.46% |